Calotes is a genus of lizards in the draconine clade of the family Agamidae. The genus contains 29 species. Some species are known as forest lizards, others as "bloodsuckers" due to their red heads, and yet others as garden lizards. The genus name Calotes has been derived from the Greek word Καλότης (Kalótës), meaning ‘beauty’, referring to the beautiful pattern of this genus.
Palaeoniscum is an extinct genus of ray-finned fish from the Permian period (Guadalupian-Lopingian) of England, Germany, Turkey, North America and Greenland, and possibly other regions. The genus was named Palaeoniscum in 1818 by Henri Marie Ducrotay de Blainville, but was later misspelled as Palaeoniscus by Blainville and other authors. Palaeoniscum belongs to the family Palaeoniscidae.
Cidaris is a genus of pencil sea urchins.
Corbicula is a genus of freshwater and brackish water clams, aquatic bivalve mollusks in the family Cyrenidae, the basket clams. The genus name is the Neo-Latin diminutive of Latin corbis, a basket, referring to the shape and ribs of the shell.
Echinocardium is a genus of sea urchins of the family Loveniidae, known as heart urchins. The name is derived from the Greek ἐχῖνος and καρδία.
The Palaeonisciformes, commonly known as "palaeoniscoids" are an extinct grouping of primitive ray-finned fish (Actinopterygii), spanning from the Silurian/Devonian to the Cretaceous. They are generally considered paraphyletic, but their exact relationships to living ray-finned fish are uncertain. While some and perhaps most palaeoniscoids likely belong to the stem-group of Actinopteryii, it has been suggested that some may belong to the crown group, with some of these possibly related to Cladistia and/or Chondrostei. Many palaeoniscoids share a conservative body shape and a similar arrangement of skull bones.
Carcharias is a genus of mackerel sharks belonging to the family Odontaspididae. Once bearing many prehistoric species, all have gone extinct with the exception of the critically endangered sand tiger shark.
Streptaxidae is a family of carnivorous air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Stylommatophora. Six Streptaxidae subfamilies are accepted in the 2005 taxonomy of the Gastropoda by Bouchet & Rocroi.
Rhachistia is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Cerastidae.
Palaeoniscidae is an extinct family of "palaeoniscoid" ray-finned fishes (Actinopterygii).. The family includes the genus Palaeoniscum and potentially other Palaeozoic and Mesozoic early actinopterygian genera. The name is derived from the Ancient Greek words παλαιός and ὀνίσκος.
Brisaster latifrons is a species of sea urchins of the family Schizasteridae. Their armour is covered with spines. Brisaster latifrons was first scientifically described in 1898 by Alexander Emanuel Agassiz.
Brisaster moseleyi is a species of sea urchins of the family Schizasteridae. Their armour is covered with spines. Brisaster moseleyi was first scientifically described in 1881 by Alexander Emanuel Agassiz.
Centrocidaris is a monotypic genus of sea urchins belonging to the family Cidaridae. The only species is Centrocidaris doederleini. Their armour is covered with spines. Centrocidaris doederleini was first scientifically described in 1898 by Alexander Agassiz.
The Neognathostomata are a superorder of sea urchins.
Schizasteridae is a family of echinoderms belonging to the order Spatangoida.
Plexechinus is a genus of echinoderms belonging to the monotypic family Plexechinidae.
Diphasia is a genus of hydrozoans belonging to the family Sertulariidae.
Brissopsis is a genus of echinoderms belonging to the family Brissidae.
Fellaster is a genus of echinoderms belonging to the family Clypeasteridae.
