Columbusia roessingi

(Case, 1987)


Classification: Elasmobranchii Rajiformes Sclerorhynchidae

Reference of the original description
Case, G.R. (1987)
A new selachian fauna from the Late Campanian of Wyoming (Teapot Sandstone Member, Mesaverde Formation, Big Horn Basin). Palaeontographica, Abt. A, 197(1–3), 1–37

Synonyms / new combinations and misspellings
Squatirhina roessingi

Types
Columbusia roessingi
Holotype: AMNH.: 12087; Paratype: AMNH.: 12088; AMNH.: 12089; AMNH.: 12090;


Description:


Citation: Columbusia roessingi (Case, 1987): In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 03/2024

Please send your images of "Columbusia roessingi" to info@shark-references.com

Columbusia roessingi (Case, 1987), Holotype © G. Case

Distribution Geographic
Broom Draw Quad, Worland SE Quad, Wyoming, USA [393]; Southeastern Alberta, USA [26316]

Distribution Strategraphy
Late Campanian, Mesaverde Formation [393]; Judith River Group (the Foremost and Oldman formations) [26316]

Material
Several dozens of teeth [393], RTMP96.71.6 and RTMP96.71.9 [26316]

Description
Diagnosis after CASE, 1987 [393]: Minute teeth with an enamelled collar on either side of a central blade or cusp, low hanging dimensional apron appendage in labial aspect, holaulacorhize root structure in basal aspect.

Remarks
shark-references Species-ID=1504;
Taxonomic remark: described as Squatirhina roessingi, put it into the genus Columbusia by CASE, G.R. & SCHWIMMER, D.R. & BORODIN, P.D. & LEGGETT, J.J. 2001 A new selachian fauna from the Eutaw Formation (Upper Cretaceous/Early to Middle Santonian) of Chattahoochee County, Georgia. Palaeontographica, Abt. A, 261 (4–6): 83–102, 6 fig., 6 pl. [403]

References
Guinot, G. & Condamine, F.L. (2023)
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
Peng, J. & Russell, A.P. & Brinkman, D.B. (2001)
Vertebrate microsite assemblages (exclusive of mammals) from the Foremost and Oldman formations of the Judith River group (Campanian) of Southeastern Alberta : an illustrated guide. Provincial Museum of Alberta Natural History, Occassional Paper No. 25
Case, G.R. & Schwimmer, D.R. & Borodin, P.D. & Leggett, J.J. (2001)
A new selachian fauna from the Eutaw Formation (Upper Cretaceous/Early to Middle Santonian) of Chattahoochee County, Georgia. Palaeontographica, Abt. A, 261(4–6), 83–102
Peng, J. (1997)
Palaeoecology Of Vertebrate Assemblages From The Upper Cretaceous Judith River Group (Campanian) Of Southeastern Alberta, Canada. unpublished thesis, University of Calgary
Case, G.R. (1987)
A new selachian fauna from the Late Campanian of Wyoming (Teapot Sandstone Member, Mesaverde Formation, Big Horn Basin). Palaeontographica, Abt. A, 197(1–3), 1–37