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| Genus: | Eotetragonites † Breistroffer, 1947 |
Eotetragonites is an extinct genus of ammonite. [1]
Eotetragonites is considered by some authors an alternative spelling of Eogaudryceras . [2]
Species within this genus include: [2]
The fossil record of this genus dates back to the Cretaceous [1] (age range: from 112.6 to 99.7million years ago). Fossils of species within this genus have been found in Egypt, France, Madagascar, South Africa and United States (California). These cephalopods were fast-moving nektonic carnivores. [2]
Apleuroceras is a genus of ceratitid ammonites with an essentially smooth evolute shell with a subquadrade whorl section and a ceratitic suture with two lateral lobes. Apleuroceras belongs to the Aplococeratidae and has been found in middle Triassic formations of Ladinian age in Hungary and the Alps.
Ancyloceras is an extinct genus of heteromorph ammonites found throughout the world during the Lower Cretaceous, from the Lower Barremian epoch until the genus extinction during the Lower Aptian.
Douvilleiceras is a genus of ammonites from the Middle to Late Cretaceous. Its fossils have been found worldwide, in Africa, Asia, Europe, and North and South America.
Oxynoticeratidae is a family of true ammonites included in the superfamily Psiloceratoidea.
Eumetadrillia is a genus of sea snails, marine gastropod mollusks in the family Drilliidae.
Pterotrigonia is an extinct genus of saltwater clams, marine bivalve molluscs in the family Megatrigoniidae. This genus is known in the fossil record from the Jurassic period Tithonian age to the Cretaceous period Maastrichtian age. Species in this genus were facultatively mobile infaunal suspension feeders. The type species of the genus is Pterotrigonia cristata.
Phyllopachyceras is an extinct genus of ammonoid cephalopods belonging to the family Phylloceratidae. These nektonic carnivores lived in the Cretaceous, from Hauterivian to Maastrichtian to age.
Pseudothurmannia is a genus of extinct cephalopods belonging to the subclass Ammonoidea and included in the family Crioceratitidae of the ammonitid superfamily Ancylocerataceae. These fast-moving nektonic carnivores lived in the Cretaceous period, from Hauterivian age to Barremian age.
Harpoceras is an extinct genus of ammonite belonging to the family Hildoceratidae. These cephalopods existed in the Jurassic period, during the Toarcian age from the Falciferum zone to the Commune subzone of the Bifrons zone. They were fast-moving nektonic carnivores.
Reineckeia is an extinct genus of ammonoid cephalopods belonging to the family Reineckeiidae.
Holcodiscus is an ammonite genus placed in the family Holcodiscidae. Species in this genus were fast-moving nektonic carnivores. The type species of the genus is Ammonites caillaudianus.
Silesites is an ammonite genus placed in the family Silesitidae. Species in this genus were fast-moving nektonic carnivores. They lived during the Cretaceous, in the Barremian age. The type species of the genus is Silesites seranonis .
Dufrenoyia is an extinct genus of Cretaceous ammonites included in the family Parahoplitidae. These fast-moving nektonic carnivores lived in the Cretaceous period. The type species of the genus is Ammonites dufrenoyi.
Sonneratia is an extinct genus of Cretaceous ammonites included in the family Hoplitidae. These fast-moving nektonic carnivores lived in the Cretaceous period, Aptian - Albian age.
Pseudopeltoceras is a genus of perisphinctoid ammonites belonging to the family Perisphinctidae.
Parkinsonia is a genus of ammonites belonging to the family Parkinsoniidae.
Lyelliceras is a genus of ammonites belonging to the family Lyelliceratidae. These cephalopods were fast-moving nektonic carnivores. They lived in the Cretaceous period, Albian stage.
Hammatoceras is a genus of ammonites belonging to the family Hammatoceratidae which lived during the Toarcian stage of the Early/Lower Jurassic between about 184 and 175 million year ago.
Plesioteuthis is an extinct genus of squids, belonging to the family Plesioteuthididae. This genus was first described in 1859, and its fossils were found in the well-known Solnhofen field in Germany.
Juraphyllites is a genus of ammonites belonging to the family Juraphyllitidae.
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