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Small Ceratite Ammonoid - Timor 1.JPG
By Dpaul7
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Ceratites Ammonoid
Timor, Indonesia
Probably Permian (298.9-251.902 million years ago)
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. This specimen is unpolished.
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda Subclass: †Ammonoidea
Order: †Ceratitida
Timor, Indonesia
Probably Permian (298.9-251.902 million years ago)
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. This specimen is unpolished.
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda Subclass: †Ammonoidea
Order: †Ceratitida
Photo Information
- Taken with Canon Canon PowerShot SX120 IS
- Focal Length 9.1 mm
- Exposure Time 1/50
- f Aperture f/3.2
- ISO Speed 200
-
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