Texatrygon avonicola
(Estes, 1964)
Classification: Elasmobranchii Rajiformes incert. fam.
Reference of the original description
Fossil vertebrates from the Late Cretaceous Lance Formation, Eastern Wyoming. University of California Publications in Geological Sciences, 49, 1–180
Fossil vertebrates from the Late Cretaceous Lance Formation, Eastern Wyoming. University of California Publications in Geological Sciences, 49, 1–180
Types
Texatrygon avonicola
Texatrygon avonicola
Description:
Citation: Texatrygon avonicola (Estes, 1964): In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026
Description
Original diagnosis after Estes, 1964 [788]: This is the smallest known ganopristine. Viewed dorsally, anterior edge of rostral tooth with obtuse outline, anterior and posterior trenchant edges of the crown not reaching to the base of the crown, and crown half or less than half of the total length of the tooth.
Original diagnosis after Estes, 1964 [788]: This is the smallest known ganopristine. Viewed dorsally, anterior edge of rostral tooth with obtuse outline, anterior and posterior trenchant edges of the crown not reaching to the base of the crown, and crown half or less than half of the total length of the tooth.
Remarks
shark-references Species-ID=13962;
shark-references Species-ID=13962;
References
Euselachian diversity through the uppermost Cretaceous Hell Creek Formation of Garfield County, Montana, USA, with implications for the Cretaceous-Paleogene mass extinction in freshwater environments. Cretaceous Research, 113, Article 104483
DOI: 10.1016/j.cretres.2020.104483
Elasmobranchs from upper Cretaceous freshwater facies in southern Utah. In At the top of the Grand Staircase – The Late Cretaceous of southern Utah. LOEWEN, Alan L. TITUS & Mark A. (Eds.), Indian Univ. Press.: 153–194, fig. 9.1–9.22
Euselachian diversity through the uppermost Cretaceous Hell Creek Formation of Garfield County, Montana, USA, with implications for the Cretaceous-Paleogene mass extinction in freshwater environments. Cretaceous Research, 113, Article 104483
DOI: 10.1016/j.cretres.2020.104483
Elasmobranchs from upper Cretaceous freshwater facies in southern Utah. In At the top of the Grand Staircase – The Late Cretaceous of southern Utah. LOEWEN, Alan L. TITUS & Mark A. (Eds.), Indian Univ. Press.: 153–194, fig. 9.1–9.22
