Macrosemiidae
In-game article clicks load inline without leaving the challenge.
Macrosemiidae is an extinct family of ginglymodian fish. The family first appeared during the Middle Triassic and disappeared during the Late Cretaceous. The group has been found in rock formations in Africa, Australia, Eurasia and North America. As ginglymodians, their closest living relatives are gars, with them being typically placed as nested within the Semionotiformes. Many members of the family have elongated dorsal fins, often associated with adjacent area of skin which was free of scales. These fins were likely undulated for use in precision swimming. Their body morphology suggests that they were slow swimmers that were capable of maneuvering around complex topography, such as reef environments.
Taxonomy
- †Order Macrosemiiformes †Family Macrosemiidae, Thiollière, 1858 Genus †Eosemionotus Genus †Agoultichthys Genus †Aphanepygus Genus †Disticholepis Genus †Enchelyolepis Genus †Orthurus Genus †Petalopteryx Genus †Neonotagogus Genus †Histionotus Genus †Legnonotus Genus †Macrosemius Genus †Propterus Incetae sedis Genus †Uarbryichthys Genus †Voelklichthys
Timeline of genera
External links
- Sepkoski, Jack (2002). . Bulletins of American Paleontology. 364: 560. Archived from on 2009-02-20.