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Showing results for tags 'ceratites ammonite'.
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I have three cephalopod fossils in my collection with little to no background information. The first two photos are of a specimen collected in Kentucky by a family member (presumably near Berea). The smaller cephalopods on the upper right and left in Photo 1 compare very favorably with Gomphoceras images. The larger samples in Photo 2 show middle indentations with reduced chambers and septa; possibly indicative of hard times in the paleozoic. Photos 3 and 4 are of specimens acquired from the liquidation of the former Emerald Rock Shop in Deer Park, Ohio (the owners had passed on). There is no background information on these specimens but they do compare favorably with Ceratites based on the shapes of the "ribs' near the keel and the thinness of the specimens. Photo 5 is a specimen that was mislabeled as a brachiopod. It compares favorable with images of imported Acanthoceras specimens from Morocco. I would greatly appreciate constructive comments and/or suggestions concerning these specimens. Sincerely, Nick Loux Gomphoceras1.pdf Gomphoceras2.pdf Ceratite1.pdf Ceratite2.pdf Acanthoceras.pdf
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From the album: MY FOSSIL Collection - Dpaul7
Ceratites Ammonite Timor, Indonesia Ceratites ("Horn Stone") is an extinct genus of ammonite cephalopods. These nektonic carnivores lived in marine habitats in what is now Europe, Asia, and North America, during the Triassic, from Anisian to Ladinian age. This ammonite has a ceratitic suture pattern on its shell (smooth lobes and frilly saddles). Evolution of the frilly saddles is thought to be due to increased pressure on the shell, at greater depth. The frilly pattern would increase the strength of the shell and allow Ceratites to dive deeper, possibly in search of food. Fossils of species within this family have been found in the Triassic of Austria, Canada, China, France, Germany, Hungary, India, Israel, Italy, Pakistan, Poland, Russia, Thailand, Turkey and United States. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Subclass: †Ammonoidea Order: †Ceratitida Superfamily: †Ceratitaceae Family: †Ceratitidae Subfamily: †Ceratitinae Genus: †Ceratites-
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From the album: MY FOSSIL Collection - Dpaul7
Ceratites Ammonite Timor, Indonesia Ceratites ("Horn Stone") is an extinct genus of ammonite cephalopods. These nektonic carnivores lived in marine habitats in what is now Europe, Asia, and North America, during the Triassic, from Anisian to Ladinian age. This ammonite has a ceratitic suture pattern on its shell (smooth lobes and frilly saddles). Evolution of the frilly saddles is thought to be due to increased pressure on the shell, at greater depth. The frilly pattern would increase the strength of the shell and allow Ceratites to dive deeper, possibly in search of food. Fossils of species within this family have been found in the Triassic of Austria, Canada, China, France, Germany, Hungary, India, Israel, Italy, Pakistan, Poland, Russia, Thailand, Turkey and United States. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Subclass: †Ammonoidea Order: †Ceratitida Superfamily: †Ceratitaceae Family: †Ceratitidae Subfamily: †Ceratitinae Genus: †Ceratites-
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