Dasyatis wochadunensis
Ward, 1979
Classification: Elasmobranchii Myliobatiformes Dasyatidae
Reference of the original description
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
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
Types
Dasyatis wochadunensis
Holotype: BMNH.: P.59560; Paratype: BMNH.: P.59699; BMNH.: P.59700; BMNH.: P.59561; BMNH.: P.59701-3; BMNH.: P.59704-5; BMNH.: P.59706-10; BMNH.: P.59711-17; BMNH.: P.59718; BMNH.: P.59719-22; BMNH.: P.59723-9; BMNH.: P.59730; BMNH.: P.59731-13; CGH: GB.ES.OCK.1; CGH: GB.ES.OCK.2; LACM.: 118382;
Dasyatis wochadunensis
Holotype: BMNH.: P.59560; Paratype: BMNH.: P.59699; BMNH.: P.59700; BMNH.: P.59561; BMNH.: P.59701-3; BMNH.: P.59704-5; BMNH.: P.59706-10; BMNH.: P.59711-17; BMNH.: P.59718; BMNH.: P.59719-22; BMNH.: P.59723-9; BMNH.: P.59730; BMNH.: P.59731-13; CGH: GB.ES.OCK.1; CGH: GB.ES.OCK.2; LACM.: 118382;
Description:
Citation: Dasyatis wochadunensis Ward, 1979: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 04/2024
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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.
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.
References
London Clay Fossils of Kent and Essex. Rochester, Kent, Medway Fossil and Mineral Society, 228 p, ISBN: 978–0–9538243–1–1
Fossil sharks, rays and chimaeroids of the English Tertiary period. Gosport Museum, 1–47, 10 fig., 3 tabl., 16 pl.
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
London Clay Fossils of Kent and Essex. Rochester, Kent, Medway Fossil and Mineral Society, 228 p, ISBN: 978–0–9538243–1–1
Fossil sharks, rays and chimaeroids of the English Tertiary period. Gosport Museum, 1–47, 10 fig., 3 tabl., 16 pl.
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
