Cretalamna cf. ewelli
Siverson, Lindgren, Newbrey, Cederström & Cook, 2015
Classification: Elasmobranchii Lamniformes Otodontidae
Reference of the original description
Cenomanian–Campanian (Late Cretaceous) mid-palaeolatitude sharks of Cretalamna appendiculata type. Acta Palaeontologica Polonica, 60(2), 339–384
Cenomanian–Campanian (Late Cretaceous) mid-palaeolatitude sharks of Cretalamna appendiculata type. Acta Palaeontologica Polonica, 60(2), 339–384
Types
Cretalamna cf. ewelli
Cretalamna cf. ewelli
Description:
Citation: Cretalamna cf. ewelli Siverson, Lindgren, Newbrey, Cederström & Cook, 2015: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 09/2026
Description
Original diagnosis after Siverson, Lindgren, Newbrey, Cederström & Cook, 2015 [22014]: Upper anterior teeth with awl-shaped, slightly distally inclined cusp or with broader, recurved cusp. Cusplets minute to moderately large and erect to divergent on upper anterior teeth. Lateroposterior teeth with slender cusp and deep, moderately tightly curved median indentation of basal edge of root. Inner cutting edge of cusplets in lateroposterior teeth typically more convex than outer edge.
Original diagnosis after Siverson, Lindgren, Newbrey, Cederström & Cook, 2015 [22014]: Upper anterior teeth with awl-shaped, slightly distally inclined cusp or with broader, recurved cusp. Cusplets minute to moderately large and erect to divergent on upper anterior teeth. Lateroposterior teeth with slender cusp and deep, moderately tightly curved median indentation of basal edge of root. Inner cutting edge of cusplets in lateroposterior teeth typically more convex than outer edge.
References
Santonian-Campanian neoselachian faunas of the Upper Cretaceous Yezo Group in Nakagawa Town, Hokkaido, Japan. Cretaceous Research, 133, Article 105139
DOI: 10.1016/j.cretres.2022.105139
Santonian-Campanian neoselachian faunas of the Upper Cretaceous Yezo Group in Nakagawa Town, Hokkaido, Japan. Cretaceous Research, 133, Article 105139
DOI: 10.1016/j.cretres.2022.105139
