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Cosmoptychius, the Glossary

Cosmoptychius is an extinct genus of freshwater and estuarine ray-finned fish that lived during the Mississippian epoch.^[1]

Actinopteri

Actinopteri is the sister group of Cladistia (bichirs) in the class Actinopterygii (ray-finned fish).

See Cosmoptychius and Actinopteri

Actinopterygii

Actinopterygii, members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species.

See Cosmoptychius and Actinopterygii

Brian G. Gardiner (biologist)

Brian George Gardiner PPLS (30 October 1932 – 21 January 2021) was a British palaeontologist and zoologist, specialising in the study of fossil fish (palaeoichthyology).

See Cosmoptychius and Brian G. Gardiner (biologist)

In phylogenetics, the crown group or crown assemblage is a collection of species composed of the living representatives of the collection, the most recent common ancestor of the collection, and all descendants of the most recent common ancestor.

See Cosmoptychius and Crown group

List of prehistoric bony fish genera

This list of prehistoric bony fish is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms.

See Cosmoptychius and List of prehistoric bony fish genera

Lists of prehistoric fish

Prehistoric fish are early fish that are known only from fossil records.

See Cosmoptychius and Lists of prehistoric fish

Louis Agassiz

Jean Louis Rodolphe Agassiz FRS (For) FRSE (May 28, 1807 – December 14, 1873) was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history.

See Cosmoptychius and Louis Agassiz

Mississippian (geology)

The Mississippian (also known as Lower Carboniferous or Early Carboniferous) is a subperiod in the geologic timescale or a subsystem of the geologic record.

See Cosmoptychius and Mississippian (geology)

Neopterygii

Neopterygii (from Greek νέος neos 'new' and πτέρυξ pteryx 'fin') is a subclass of ray-finned fish (Actinopterygii).

See Cosmoptychius and Neopterygii

Palaeonisciformes

The Palaeonisciformes, commonly known as "palaeoniscoids" (also spelled "paleoniscoid", or alternatively "paleoniscids") are an extinct grouping of primitive ray-finned fish (Actinopterygii), spanning from the Silurian/Devonian to the Cretaceous.

See Cosmoptychius and Palaeonisciformes

Paraphyly

Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages.

See Cosmoptychius and Paraphyly

Ramsay Traquair

Ramsay Heatley Traquair FRSE FRS (30 July 1840 – 22 November 1912) was a Scottish naturalist and palaeontologist who became a leading expert on fossil fish.

See Cosmoptychius and Ramsay Traquair

Thesis

A thesis (theses), or dissertation (abbreviated diss.), is a document submitted in support of candidature for an academic degree or professional qualification presenting the author's research and findings.

See Cosmoptychius and Thesis