{"title":"Peronoceras Ammonite Fossils - Yorkshire Fossils","description":"\u003cp data-start=\"256\" data-end=\"510\"\u003eExplore \u003cstrong data-start=\"264\" data-end=\"311\"\u003ePeronoceras Ammonite Fossils From Yorkshire\u003c\/strong\u003e, Sourced From The North Yorkshire Coast—A Globally Recognised Location For \u003cstrong data-start=\"387\" data-end=\"410\"\u003eJurassic Fossils UK\u003c\/strong\u003e. These \u003cstrong data-start=\"418\" data-end=\"441\"\u003eAuthentic Ammonites\u003c\/strong\u003e Date Back Around 180 Million Years To An Ancient Marine Environment.\u003c\/p\u003e\n\u003cp data-start=\"512\" data-end=\"695\"\u003eBrowse \u003cstrong data-start=\"519\" data-end=\"556\"\u003ePeronoceras Ammonites For Sale UK\u003c\/strong\u003e, Known For Their \u003cstrong data-start=\"574\" data-end=\"590\"\u003eFine Ribbing\u003c\/strong\u003e, Elegant Form, And Natural Detail—Perfect For \u003cstrong data-start=\"637\" data-end=\"651\"\u003eCollectors\u003c\/strong\u003e, \u003cstrong data-start=\"653\" data-end=\"672\"\u003eFossil Displays\u003c\/strong\u003e, And \u003cstrong data-start=\"678\" data-end=\"694\"\u003eUnique Gifts\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"697\" data-end=\"946\"\u003eEach Specimen Is A \u003cstrong data-start=\"716\" data-end=\"751\"\u003e100% Authentic Yorkshire Fossil\u003c\/strong\u003e, \u003cstrong data-start=\"753\" data-end=\"780\"\u003eProfessionally Prepared\u003c\/strong\u003e And Selected For Its Quality And Visual Appeal. Ideal For Buyers Searching \u003cstrong data-start=\"856\" data-end=\"877\"\u003eRare Ammonites UK\u003c\/strong\u003e, \u003cstrong data-start=\"879\" data-end=\"907\"\u003eBritish Fossils For Sale\u003c\/strong\u003e, And \u003cstrong data-start=\"913\" data-end=\"945\"\u003eJurassic Ammonites Yorkshire\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1006\" data-end=\"1049\"\u003e\u003cstrong data-start=\"1006\" data-end=\"1049\"\u003eFree UK \u0026amp; Worldwide Shipping Available.\u003c\/strong\u003e\u003c\/p\u003e","products":[{"product_id":"peronoceras-fibulatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils","title":"Peronoceras fibulatum ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulation (looped ribs) combined with spines is usually a particular feature of most Peronoceras species; although fibulation is usually absent in P.perarmatum. In Yorkshire there are the more compressed (slender) finer-ribbed P. turriculatum and P. fibulatum (the former having less looped ribs on inner whorls), and then the depressed (thicker) coarser-ribbed P. subarmatum and P.permaratum (the latter usually possessing no looped ribs). To add to the confusion there are also many intermediary forms.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eOn all these species the ribs bend forward over the top, but more notably on the 2 former more slender species.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eSpines are usually much more robust on the thicker 2 latter species.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 6.2cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eOccurrence: Common (but much less so P.permaratum)\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":41848023449636,"sku":"178 SD","price":109.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/25B56756-8FEC-4DAC-AA7E-C19527DA45CC.jpg?v=1726653644"},{"product_id":"peronoceras-turriculatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-3","title":"Peronoceras turriculatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast, Yorkshire fossils","description":"\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulatum Subzone\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eUpper Lias, Lower Jurassic\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eNorth Yorkshire\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge: 185 Million Years Old\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eActual ammonite size: 5.5cm\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42075894579236,"sku":"478 S","price":224.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/F19D0C2F-8DBD-45ED-B503-03904BC7D574.jpg?v=1738708677"},{"product_id":"peronoceras-turriculatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-4","title":"Peronoceras turriculatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast, Yorkshire fossils","description":"\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulatum Subzone\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eUpper Lias, Lower Jurassic\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eNorth Yorkshire\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge: 185 Million Years Old\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eActual ammonite size: 5.6cm\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42075895660580,"sku":"450 S","price":94.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/3DCF0730-DAA9-4692-AE96-7B52E9C42F6A.jpg?v=1738708889"},{"product_id":"peronoceras-fibulatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-1","title":"Peronoceras fibulatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulation (looped ribs) combined with spines is usually a particular feature of most Peronoceras species; although fibulation is usually absent in P.perarmatum. In Yorkshire there are the more compressed (slender) finer-ribbed P. turriculatum and P. fibulatum (the former having less looped ribs on inner whorls), and then the depressed (thicker) coarser-ribbed P. subarmatum and P.permaratum (the latter usually possessing no looped ribs). To add to the confusion there are also many intermediary forms.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eOn all these species the ribs bend forward over the top, but more notably on the 2 former more slender species.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eSpines are usually much more robust on the thicker 2 latter species.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 7.7cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eOccurrence: Common (but much less so P.permaratum)\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42075899101220,"sku":"567 S","price":189.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/06DEDA90-5090-41FD-9C44-BFD699819D73.jpg?v=1738709350"},{"product_id":"peronoceras-sp-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils","title":"Peronoceras Sp. Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 6.6cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42075901460516,"sku":"470 S","price":189.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/60390015-00F9-4887-86B0-E561D86F4AB3.jpg?v=1738709684"},{"product_id":"peronoceras-sp-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-1","title":"Peronoceras Sp. Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 3.9cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42075903459364,"sku":"518 S","price":149.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/F069308F-51FF-4C93-8AB1-4477C22EF38A.jpg?v=1738709930"},{"product_id":"peronoceras-turriculatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-6","title":"Peronoceras turriculatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast, Yorkshire fossils","description":"\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulatum Subzone\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eUpper Lias, Lower Jurassic\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eNorth Yorkshire\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge: 185 Million Years Old\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eActual ammonite size: 5.2cm\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42281799581732,"sku":"569 SD","price":129.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/80EBC0DF-058B-4E27-ABA8-F4A8A8693E51.jpg?v=1746294529"},{"product_id":"peronoceras-turriculatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-7","title":"Peronoceras turriculatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast, Yorkshire fossils","description":"\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulatum Subzone\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eUpper Lias, Lower Jurassic\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eNorth Yorkshire\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge: 185 Million Years Old\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eActual ammonite size: 5.4cm\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42281803055140,"sku":"377 SD","price":129.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/1A5FC36E-169D-4CB7-AB4A-452461AE99A5.jpg?v=1746294707"},{"product_id":"peronoceras-turriculatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-8","title":"Peronoceras turriculatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast, Yorkshire fossils","description":"\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulatum Subzone\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eUpper Lias, Lower Jurassic\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eNorth Yorkshire\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge: 185 Million Years Old\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eActual ammonite size: 7.7cm\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42359880777764,"sku":"242 S","price":119.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/B487E760-D5DD-43CE-8BA7-8445313C8513.jpg?v=1749577597"},{"product_id":"peronoceras-fibulatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-2","title":"Peronoceras fibulatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulation (looped ribs) combined with spines is usually a particular feature of most Peronoceras species; although fibulation is usually absent in P.perarmatum. In Yorkshire there are the more compressed (slender) finer-ribbed P. turriculatum and P. fibulatum (the former having less looped ribs on inner whorls), and then the depressed (thicker) coarser-ribbed P. subarmatum and P.permaratum (the latter usually possessing no looped ribs). To add to the confusion there are also many intermediary forms.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eOn all these species the ribs bend forward over the top, but more notably on the 2 former more slender species.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eSpines are usually much more robust on the thicker 2 latter species.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 7.5cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eOccurrence: Common (but much less so P.permaratum)\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42359904567332,"sku":"182 S","price":139.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/517530EC-C015-4612-9EF1-36DCE4E6DE5E.jpg?v=1749578020"},{"product_id":"peronoceras-fibulatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-3","title":"Peronoceras fibulatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulation (looped ribs) combined with spines is usually a particular feature of most Peronoceras species; although fibulation is usually absent in P.perarmatum. In Yorkshire there are the more compressed (slender) finer-ribbed P. turriculatum and P. fibulatum (the former having less looped ribs on inner whorls), and then the depressed (thicker) coarser-ribbed P. subarmatum and P.permaratum (the latter usually possessing no looped ribs). To add to the confusion there are also many intermediary forms.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eOn all these species the ribs bend forward over the top, but more notably on the 2 former more slender species.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eSpines are usually much more robust on the thicker 2 latter species.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 7.3cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eOccurrence: Common (but much less so P.permaratum)\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42359907418148,"sku":"22 S","price":88.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/67BB551B-73C9-466E-9A83-C04CB3F607DE.jpg?v=1749578451"},{"product_id":"peronoceras-fibulatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-4","title":"Peronoceras fibulatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulation (looped ribs) combined with spines is usually a particular feature of most Peronoceras species; although fibulation is usually absent in P.perarmatum. In Yorkshire there are the more compressed (slender) finer-ribbed P. turriculatum and P. fibulatum (the former having less looped ribs on inner whorls), and then the depressed (thicker) coarser-ribbed P. subarmatum and P.permaratum (the latter usually possessing no looped ribs). To add to the confusion there are also many intermediary forms.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eOn all these species the ribs bend forward over the top, but more notably on the 2 former more slender species.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eSpines are usually much more robust on the thicker 2 latter species.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 8.1cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eOccurrence: Common (but much less so P.permaratum)\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42359911284772,"sku":"512 S","price":189.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/B2FB8F5D-05D1-4D50-A265-3B271DEBC87A.jpg?v=1749578804"},{"product_id":"peronoceras-fibulatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-5","title":"Peronoceras fibulatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulation (looped ribs) combined with spines is usually a particular feature of most Peronoceras species; although fibulation is usually absent in P.perarmatum. In Yorkshire there are the more compressed (slender) finer-ribbed P. turriculatum and P. fibulatum (the former having less looped ribs on inner whorls), and then the depressed (thicker) coarser-ribbed P. subarmatum and P.permaratum (the latter usually possessing no looped ribs). To add to the confusion there are also many intermediary forms.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eOn all these species the ribs bend forward over the top, but more notably on the 2 former more slender species.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eSpines are usually much more robust on the thicker 2 latter species.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 5.6cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eOccurrence: Common (but much less so P.permaratum)\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42359913611300,"sku":"443 S","price":189.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/9CB6B375-BF66-4CFA-9A22-D5CF16689ED3.jpg?v=1749579213"},{"product_id":"peronoceras-fibulatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-6","title":"Peronoceras fibulatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulation (looped ribs) combined with spines is usually a particular feature of most Peronoceras species; although fibulation is usually absent in P.perarmatum. In Yorkshire there are the more compressed (slender) finer-ribbed P. turriculatum and P. fibulatum (the former having less looped ribs on inner whorls), and then the depressed (thicker) coarser-ribbed P. subarmatum and P.permaratum (the latter usually possessing no looped ribs). To add to the confusion there are also many intermediary forms.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eOn all these species the ribs bend forward over the top, but more notably on the 2 former more slender species.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eSpines are usually much more robust on the thicker 2 latter species.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 8.0cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eOccurrence: Common (but much less so P.permaratum)\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42359926095908,"sku":"2945 S","price":129.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/D9C28371-8ED2-44EC-9A42-57719310AB71.jpg?v=1749579494"},{"product_id":"peronoceras-sp-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-2","title":"Peronoceras Sp. Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil for sale found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 8.3cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42440984100900,"sku":"2903 S","price":149.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/3F71DD4A-8F00-443C-909D-530301E7BC14.jpg?v=1753105660"},{"product_id":"peronoceras-sp-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-3","title":"Peronoceras Sp. Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil for sale found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 6.7cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42440985772068,"sku":"391 S","price":149.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/5F1BDCFC-F4A4-4055-9E59-3D41279D52B6.jpg?v=1753105837"},{"product_id":"peronoceras-sp-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-4","title":"Peronoceras Sp. Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil for sale found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 4.2cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42440987541540,"sku":"131 S","price":89.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/DD36B38E-54D5-4024-BD39-20485D73945F.jpg?v=1753106077"},{"product_id":"peronoceras-fibulatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-7","title":"Peronoceras fibulatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulation (looped ribs) combined with spines is usually a particular feature of most Peronoceras species; although fibulation is usually absent in P.perarmatum. In Yorkshire there are the more compressed (slender) finer-ribbed P. turriculatum and P. fibulatum (the former having less looped ribs on inner whorls), and then the depressed (thicker) coarser-ribbed P. subarmatum and P.permaratum (the latter usually possessing no looped ribs). To add to the confusion there are also many intermediary forms.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eOn all these species the ribs bend forward over the top, but more notably on the 2 former more slender species.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eSpines are usually much more robust on the thicker 2 latter species.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 7.3cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eOccurrence: Common (but much less so P.permaratum)\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42440989573156,"sku":"166 S","price":139.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/E44E33A6-C120-4AF7-9F79-3D7B61CF6861.jpg?v=1753106526"},{"product_id":"peronoceras-fibulatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-8","title":"Peronoceras fibulatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulation (looped ribs) combined with spines is usually a particular feature of most Peronoceras species; although fibulation is usually absent in P.perarmatum. In Yorkshire there are the more compressed (slender) finer-ribbed P. turriculatum and P. fibulatum (the former having less looped ribs on inner whorls), and then the depressed (thicker) coarser-ribbed P. subarmatum and P.permaratum (the latter usually possessing no looped ribs). To add to the confusion there are also many intermediary forms.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eOn all these species the ribs bend forward over the top, but more notably on the 2 former more slender species.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eSpines are usually much more robust on the thicker 2 latter species.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 7.0cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eOccurrence: Common (but much less so P.permaratum)\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42440990785572,"sku":"418 S","price":94.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/3701ADEF-7E61-46F9-A0C6-37CA64612D7C.jpg?v=1753106743"},{"product_id":"peronoceras-fibulatum-ammonite-fossil-with-box-and-stand-whitby-north-yorkshire-jurassic-coast-yorkshire-fossils-9","title":"Peronoceras fibulatum Ammonite fossil with box and stand - Whitby, North Yorkshire Jurassic Coast Yorkshire Fossils","description":"\u003cp\u003eAmmonite fossil found near Whitby, North Yorkshire on the Jurassic coast\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eFibulation (looped ribs) combined with spines is usually a particular feature of most Peronoceras species; although fibulation is usually absent in P.perarmatum. In Yorkshire there are the more compressed (slender) finer-ribbed P. turriculatum and P. fibulatum (the former having less looped ribs on inner whorls), and then the depressed (thicker) coarser-ribbed P. subarmatum and P.permaratum (the latter usually possessing no looped ribs). To add to the confusion there are also many intermediary forms.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eOn all these species the ribs bend forward over the top, but more notably on the 2 former more slender species.\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003eSpines are usually much more robust on the thicker 2 latter species.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eActual ammonite size: 7.3cm \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eAge (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum subzone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDistribution: Staithes, Port Mulgrave, Runswick, Kettleness, Sandsend, Hawsker, Ravenscar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eOccurrence: Common (but much less so P.permaratum)\u003c\/span\u003e\u003c\/p\u003e","brand":"Yorkshire.Fossils","offers":[{"title":"Default Title","offer_id":42511103492132,"sku":"293 S","price":289.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/files\/DFC5A844-6C61-4C62-ADF5-D2526D8C0CD1.jpg?v=1754675580"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1047\/3508\/collections\/7B91C786-C6F9-4A57-8C12-1FA535532988_9e5a90a6-0e48-4f06-8851-29ad245a13aa.jpg?v=1776679171","url":"https:\/\/yorkshirefossils.net\/collections\/peronoceras-ammonite-fossils-yorkshire-fossils.oembed","provider":"Yorkshire.Fossils","version":"1.0","type":"link"}