Dactylioceras was a widespread genus of ammonites from the Lower Jurassic period, approximately 180 million years ago (mya).
Strombus is a genus of medium to large sea snails, marine gastropod molluscs in the family Strombidae, which comprises the true conchs and their immediate relatives. The genus Strombus was named by Swedish Naturalist Carl Linnaeus in 1758. Around 50 living species were recognized, which vary in size from fairly small to very large. Six species live in the greater Caribbean region, including the queen conch, Strombus gigas, and the West Indian fighting conch, Strombus pugilis. However, since 2006, many species have been assigned to discrete genera. These new genera are, however, not yet found in most textbooks and collector's guides.
Gleviceras is an ammonite genus that lived during the Early Jurassic Period, found in Canada, Hungary, Mexico and the United Kingdom.
Crassispira is a genus of small predatory sea snails with narrow, high-spired shells, marine gastropod mollusks in the family Pseudomelatomidae. They first appeared in the fossil record approximately 48.6 million years ago during the Eocene epoch, and still exist in the present day.
Acmaea is a genus of sea snails, specifically true limpets, marine gastropod mollusks in the family Acmaeidae, one of the families of true limpets.
Crioceratites is an ammonite genus from the Early Cretaceous belonging to the Ancyloceratoidea.
Dasyceps is an extinct genus of zatracheidid temnospondyl from the early Permian of England.
Chicoreus is a genus of medium- to large-sized predatory sea snails. These are carnivorous marine gastropod molluscs in the family Muricidae, the murexes or rock snails.
Drillia is a genus of small sea snails, marine gastropod mollusks in the family Drilliidae.
Asperdaphne is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.
Daphnella is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.
Peristernia is a genus of sea snails, marine gastropod mollusks in the subfamily Peristerniinae of the family Fasciolariidae, the spindle snails, the tulip snails and their allies.
Austromitra is a genus of sea snails in the family Costellariidae. They are small carnivorous marine gastropod mollusks, most of which are less than 15 mm in length. They live on hard substrates, intertidally and to a depth of at least 1000 m. The genus is found in southern Africa, southern Australia, New Caledonia, and New Zealand.
Pteropurpura is a genus of sea snails, marine gastropod mollusks in the subfamily Ocenebrinae of the family Muricidae, the murex snails or rock snails.
Clavus is a genus of small sea snails, marine gastropod mollusks in the family Drilliidae.
Pitar is a genus of saltwater clams, marine bivalve molluscs in the subfamily Callocardiinae of the family Veneridae, the Venus clams. The genus contains over 60 species.
Lopha is a genus of marine bivalve molluscs in the family Ostreidae.
Glycymeris, common name the bittersweet clams, is a genus of saltwater clams, marine bivalve molluscs in the family Glycymerididae.
Lunulicardia is a genus of saltwater clams, marine bivalve molluscs in the family Cardiidae, the cockles. Fossils species in this genus are present in the Pliocene deposits of Indonesia and the Miocene deposits of Russia.
Cleviceras is an extinct genus of cephalopod belonging to the family Hildoceratidae. These cephalopods existed in the Jurassic period, during Toarcian and possibly even uppermost Pliensbachian age. Sometimes, it is considered to be a synonym of Eleganticeras.
