Vallisodus coppi

(Duffin, 1982)


Classification: Elasmobranchii incert. sedis incert. fam.

Reference of the original description
Duffin, C.J. (1982)
Teeth of a new selachian from the Upper Triassic of England. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte, 1982(3), 156–166

Synonyms / new combinations and misspellings
Vallisia coppi

Types
Vallisodus coppi

Vallisia coppi
Holotype: BRSMG: Cc400;

Images of types

Description:


Citation: Vallisodus coppi (Duffin, 1982): In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 07/2024

Please send your images of "Vallisodus coppi" to info@shark-references.com

Vallisodus coppi (Duffin, 1982), Bristol City Museum and Art Gallery, Geology Collection BRSMG Cc 400, in A, labial view; B, lingual view © Christopher J. Duffin

Distribution Geographic
Records after Duffin 2021 [30010]:
Type locality: Hapsford Bridge, Vallis Vale, 2 km northwest of Frome, Somerset, South West England. Ordnance Survey Sheet 183, 1:50000. National Grid Reference ST 760495
Other records: Rhaetian fissure infill, Holwell Quarry, near Frome, Somerset, South West England. National Grid Reference ST 727 449 (Duffin 1982) [708]; Basal Bone Bed, Westbury Formation, Penarth Group, Rhaetian, Late Triassic of Manor Farm Quarry, Aust, Somerset, South West England. National Grid Reference, ST 574 896 (Allard et al. 2015) [23350]; E9 Motorway cutting, circa 1 km southeast of Hachy, Arrondissement Administratif Virton, Région Walonne, Province de Luxembourg, Belgium (Duffin et al. 1983) [3114].

Description
Original diagnose after Duffin (1982) p. 159 [708]: A neoselachian shark known only from isolated teeth. The teeth measure up to 2.5 mm high and comprise a robust crown with a large central cusp flanked by up to two lateral cusplets on each side. The cusp and cusplets are upright to moderately lingually inclined. The crown lacks ornament. The basal flange is weak to moderate and overhangs the crown/root junction labially. A marked lip is present around the whole tooth at the top of the crown shoulder. The root is a third of the crown height and comprises a flat to convex basal face with one or occasionally two median canals crossing it labiolingually. The canals may be partially roofed or open basally. An apically-directed prominent vascular foramen occupies a variable position in the floor of the median canal. Numerous small vascular foramina are located on the labial, lingual and basal root faces. The root directly underlies the crown and is only mildly lingually offset.

Remarks
shark-references Species-ID=16156;
valid after Duffin, 2021 p. 230 [30010];


References
Duffin, C.J. (2021)
A replacement name for the preoccupied genus name Vallisia Duffin, 1982 (Chondrichthyes: Neoselachii). Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 301(2), 229–232
DOI: 10.1127/njgpa/2021/1005
Ronan, J. & Duffin, C.J. & Hildebrandt, C. & Parker, A. & Hutchinson, D. & Copp, C. & Benton, M.J. (2020)
Beginning of Mesozoic marine overstep of the Mendips: The Rhaetian and its fauna at Hapsford Bridge, Vallis Vale, Somerset, UK. Proceedings of the Geologists' Association, 131(5), 578–594
Mears, E.M. & Rossi, V. & MacDonald, E. & Coleman, G. & Davies, T.G. & Arias-Riesgo, C. & Hildebrandt, C. & Thiel, H. & Duffin, C.J. & Whiteside, D.I. & Benton, M.J. (2016)
The Rhaetian (Late Triassic) vertebrates of Hampstead Farm Quarry, Gloucestershire, UK. Proceedings of the Geologists' Association, 127(4), 478–505
DOI: 10.1016/j.pgeola.2016.05.003
Allard, H. & Carpenter, S.C. & Duffin, C.J. & Benton, M.J. (2015)
Microvertebrates from the classic Rhaetian bone beds of Manor Farm Quarry, near Aust (Bristol, UK). Proceedings of the Geologists' Association, 126(6), 762–776
DOI: 10.1016/j.pgeola.2015.09.002
Ginter, M. & Hampe, O. & Duffin, C.J. (2010)
Handbook of Paleoichthyology, Vol. 3D: Chondrichthyes Paleozoic Elasmobranchii: Teeth Verlag Dr. Friedrich Pfeil, pp. 168, 154 fig., 4 Tab.
Dineley, D.L. & Metcalf, S.J. (1999)
Chapter 11 – British Triassic fossil fishes sites. In Dineley, D. & Metcalf, S. 1999. Fossil Fishes of Great Britain. Geological Conservation Review Series No. 16. JNCC, Peterborough, ISBN 1 86107 470 0 (pp. 327–351).
Delsate, D. (1993)
Synthèse des faunes d'élasmobranches du Trias et du Jurassique de Lorraine. Cossmanniana, Hors–série 2, 52–55
Delsate, D. & Lepage, J.-C. (1991)
Requins et raies en Lorraine. Geolor Magazine, 3: 6–9
Duffin, C.J. & Coupatez, P. & Lepage, J.-C. & Wouters, G. (1983)
Rhaetian (Upper Triassic) marine faunas from “Le golfe du Luxembourg” in Belgium (preliminary note). Bulletin de la Société Belge de Géologie, 92(4), 311–315
Duffin, C.J. (1982)
Teeth of a new selachian from the Upper Triassic of England. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte, 1982(3), 156–166