Heliobatis

Heliobatis; Temporal range: Early Eocene PreꞒ Ꞓ O S D C P T J K Pg N
	Male Heliobatis radians fossil
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Order:	Myliobatiformes
Family:	Dasyatidae
Genus:	Heliobatis
Species:	H. radians
Binomial name
	Heliobatis radians; Marsh, 1877
Synonyms
	Dasyatis species Haseman, 1912; Palaeodasybatis discus Fowler, 1947; Xiphotrygon acutidens Cope, 1879; Xyphotrygus species Romer, 1971;

Heliobatis is an extinct genus of stingray.^[1] At present the genus contains the single species Heliobatis radians.

The fossil is found in the early Eocene, Wasatchian stage, Fossil Lake deposits. Fossil Lake is part of the Green River Formation in southwest Wyoming.^[1]

Heliobatis is one of only two known rays to have been found in the Green River formation. The other species, Asterotrygon maloneyi, was recognized and described in 2004.^[2]

References[change | change source]

↑ ^1.0 ^1.1 ^1.2 Grande, Lance (1984), "Paleontology of the Green River Formation, with a review of the fish fauna", Bulletin of the Wyoming State Geological Survey, 63 2nd ed., Laramie, WY
↑ Carvalho, M.R.; Maisey, J.G.; Grande, L. (2004). "Freshwater stingrays of the Green River Formation of Wyoming (early Eocene), with the description of a new genus and species and an analysis of its phylogenetic relationships (Chondrichthyes, Myliobatiformes)". Bulletin of the American Museum of Natural History. 284: 1–136. doi:10.1206/0003-0090(2004)284<0001:FSOTGR>2.0.CO;2. S2CID 83986811.

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[Grande84-1] 1.0 ^1.1 ^1.2 Grande, Lance (1984), "Paleontology of the Green River Formation, with a review of the fish fauna", Bulletin of the Wyoming State Geological Survey, 63 2nd ed., Laramie, WY

[Carvalho2004-2] Carvalho, M.R.; Maisey, J.G.; Grande, L. (2004). "Freshwater stingrays of the Green River Formation of Wyoming (early Eocene), with the description of a new genus and species and an analysis of its phylogenetic relationships (Chondrichthyes, Myliobatiformes)". Bulletin of the American Museum of Natural History. 284: 1–136. doi:10.1206/0003-0090(2004)284<0001:FSOTGR>2.0.CO;2. S2CID 83986811.

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