Brachydegma

For the extant moth, see Brachytegma.

Brachydegma
Temporal range: Leonardian 279.5–272.5 Ma[1]
Interpretive drawing of the skull of the holotype of Brachydegma caelatum[2]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: incertae sedis
Family: incertae sedis
Genus: †Brachydegma
Dunkle, 1939
Species:
†B. caelatum
Binomial name
†Brachydegma caelatum
Dunkle, 1939

Brachydegma is an extinct genus of prehistoric freshwater ray-finned fish that lived during the Leonardian age (Cisuralian/lower Permian) in what is now Texas, United States. It is known from two fossils, which were recovered from the Clear Fork Formation. A potential record is also known from the concurrent Hennessey Formation of Oklahoma.[3] It is one of the only fossil ray-finned fish from the Permian that preserves the skull bones in three dimensions.[2]

  1. ^ "†Brachydegma Dunkle 1939 (ray-finned fish". Fossilworks.
  2. ^ a b Argyriou, Thodoris; Giles, Sam; Friedman, Matt (2022). "A Permian fish reveals widespread distribution of neopterygian-like jaw suspension". eLife. 11: e584334. doi:10.7554/eLife.58433. PMC 9345605. PMID 35579418.
  3. ^ "PBDB". paleobiodb.org. Retrieved 2024-04-02.