Heteropetalus

Heteropetalus Temporal range: Mississippian PreꞒ Ꞓ O S D C P T J K Pg N
Well-preserved specimen of H. elegantulus
Life restoration of H. elegantulus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Holocephali
Order:	† Debeeriiformes
Family:	† Debeeriidae
Genus:	† Heteropetalus Lund, 1977
Species:	†H. elegantulus
Binomial name
†Heteropetalus elegantulus Lund, 1977

Heteropetalus is a genus of chondrichthyan from the Mississippian age Bear Gulch Limestone of Montana, United States. One species, H. elegantulus, is known. ^{[1] [2]} Known fossils of Heteropetalus are exceptionally well preserved, displaying details of the soft tissue anatomy such as an opercular cover over the gills. ^[3]

References

1. "Heteropetalus elegantulus". mindat.org. Retrieved 26 October 2024.
2. Lund, Richard (1977-09-30). "A new petalodont (Chondrichthyes, Bradyodonti) from the Upper Mississippian of Montana". Annals of the Carnegie Museum. 46: 129––155. doi: 10.5962/p.330526 .
3. Grogan, Eileen; Lund, Richard (1995). "Pigment patterns; soft anatomy and relationships of Bear Gulch Chondrichthyes (Namurian E2b; Lower Carboniferous; Montana; USA)(Namurian E2b; Lower Carboniferous; Montana; USA)" . Geobios. Premiers Vertandébrandés et Vertandébrandés Infandérieurs. 28: 145–146. doi:10.1016/S0016-6995(95)80102-2.