Ecrinesomus

Ecrinesomus; Temporal range: Induan PreꞒ Ꞓ O S D C P T J K Pg N ↓
	Ecrinesomus dixoni fossil
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	†Bobasatraniiformes
Family:	†Bobasatraniidae
Genus:	†Ecrinesomus; Woodward, 1910
Species:	†E. dixoni
Binomial name
	†Ecrinesomus dixoni; Woodward, 1910

Ecrinesomus is an extinct genus of prehistoric marine bobasatraniiform ray-finned fish that lived during the late Induan age of the Early Triassic epoch. It is known from the Sakamena Formation of Madagascar.^[1]^[2]

Appearance

Ecrinesomus co-occurred with the relatively similar looking Bobasatrania. Fossils of these two genera are sometimes misidentified, but can be distinguished based on the following characters: the number of scale rows (Ecrinesomus has ca. 48 transversal scale rows, Bobasatrania has fewer), the body shape (Ecrinesomus has an elliptical, Bobasatrania a rhombic body outline) and the distinct skull bone pattern.^[3]

References

^ ^a ^b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Archived from the original on 2011-07-23. Retrieved 2009-02-27.
^ "PBDB Taxon". paleobiodb.org. Retrieved 2024-12-16.
^ Lehman, Jean-Pierre (1956). "Compléments à l'étude des genres Ecrinesomus et Bobasatrania de l'Eotrias de Madagascar". Annales de Paléontologie (in French). 42: 67–94..