Dasyatis wochadunensis

Ward, 1979


Classification: Elasmobranchii Myliobatiformes Dasyatidae

Reference of the original description
Ward, D.J. (1979)
Additions to the fish fauna of the English Palaeogene. 2. A new species of Dasyatis (Sting Ray) from the London Clay (Eocene) of Essex, England. Tertiary Research, 2(2), 75–81



Description:


Citation: Dasyatis wochadunensis Ward, 1979: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 10/2024

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Description
Original diagnose after Ward (1979) p. 76 [2492]: Fossil species of Dasyatis known only from isolated teeth. Female teeth large, oral surface triangular, lacking central depression, with scalloped ornamentation. Rim pronounced, slightly inflated, wide on the postero-lateral sides of the crown, extending posteriorly to form a downturned lip. Root/ crown junction lies in a shallow depression in the basal surface. Root rounded, bifid, posteriorly placed. Male teeth large, crown tetrahedral, scalloped ornamentation on the anterior and the anterior half of the two posterolateral faces. Inflated rim present but not expanded as in the female. Root/crown junction as in female, root usually smaller and more posteriorly placed than in female.

Remarks
shark-references Species-ID=1928;
valid after Ward (1979) p. 76 [2492];


References
Rayner, D. & Mitchell, T. & Rayner, M. (2009)
London Clay Fossils of Kent and Essex. Rochester, Kent, Medway Fossil and Mineral Society, 228 p, ISBN: 978–0–9538243–1–1
Kemp, D.J. (1982)
Fossil sharks, rays and chimaeroids of the English Tertiary period. Gosport Museum, 1–47, 10 fig., 3 tabl., 16 pl.
Ward, D.J. (1980)
The distribution of sharks, rays and chimaeroids in the English Palaeogene. Tertiary Research, 3(1), 13–19
Ward, D.J. (1979)
Additions to the fish fauna of the English Palaeogene. 2. A new species of Dasyatis (Sting Ray) from the London Clay (Eocene) of Essex, England. Tertiary Research, 2(2), 75–81