Physonemus altonensis

St. John & Worthen, 1875


Classification: Holocephali Symmoriiformes Symmoriidae

Reference of the original description
St.John, O.H. & Worthen, A.H. (1875)
Palaeontolgoy of Illinois. Descriptions of fossil fishes. Geological Survey of Illinois, 6, 245–488

Types
Physonemus altonensis



Description:


Citation: Physonemus altonensis St. John & Worthen, 1875: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 11/2025

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Remarks
shark-references Species-ID=15119;

References
St.John, O.H. & Worthen, A.H. (1875)
Palaeontolgoy of Illinois. Descriptions of fossil fishes. Geological Survey of Illinois, 6, 245–488