Ischyrhiza aff. avonicola
Estes, 1964
Classification: Elasmobranchii Rajiformes Sclerorhynchidae
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
Ischyrhiza aff. avonicola
Ischyrhiza aff. avonicola
Description:
Citation: Ischyrhiza aff. avonicola Estes, 1964: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026
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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=13398;
shark-references Species-ID=13398;
References
A Note on Late Cretaceous Fish Taxa Recovered from Stream Gravels at Site AGr-43 in Greene County, Alabama. Bulletin of the Alabama Museum of Natural History, 31(1), 84-97
A Note on Late Cretaceous Fish Taxa Recovered from Stream Gravels at Site AGr-43 in Greene County, Alabama. Bulletin of the Alabama Museum of Natural History, 31(1), 84-97
