Britobatos primarmata

(Woodward, 1889)


Classification: Elasmobranchii Rhinopristiformes Trygonorrhinidae

Reference of the original description
Woodward, A.S. (1889)
Catalogue of the fossil fishes in the British Museum. Part. I. British Museum(Natural History): 474 p., fig., 17 pl.

Synonyms / new combinations and misspellings
Raja primarmata, Rhinobatos aff. primarmatus, Rhinobatos berytensis, Rhinobatos primarmatus, Rhinobatus berytensis

Types
Britobatos primarmata

Raja primarmata
Syntype: NHMUK: PV P 4015; NHMUK: PV P 4016; NHMUK: PV P 49517;

Images of types

Description:


Citation: Britobatos primarmata (Woodward, 1889): In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 12/2021

Please send your images of "Britobatos primarmata" to info@shark-references.com

Raja primarmata sp. nov. ;portion of disk, U. Senonian; Sahel Alma, Mt. Lebanon, pct. Pectoral fin. plv. Pelvic fin. pr.r. Preaxial ray of pelvic tin. [P. 4015.]; 2. Ditto ; portion of disk, two thirds nat. size. Ibid. ms.p. Pectoral mesopterygium. pct. Pectoral fin-rays. pr.p. Pectoral propterygium. [P. 4016]; 3. Ditto; dermal tubercle of no. P. 4015, upper and lateral aspects, about four times nat. size.

Description
Original description of Woodward, 1889 [2593]
Type. Specimens figured in PI. IV, figs. 1-3. Snout probably acute. Angle of pectoral fin acute. A series of largo oval conical tuber-cles, radiately grooved, is arranged along the middle of the back and tail; and two regular series of similar smaller tubercles are placed on either side of the median line.
Form. & Loc, Upper Cretaceous (Turonian): Sahel Alma, Syria.
P. 4015-6, 49517. Type speci-mens figured in PI. IV. figs. 1-3. The second is preserved in counterpart. The first of these fossils consists of the much-crushed middle portion of the disk and anterior extremity of the tail. The caudal region is slender at its commencement, and a portion of one of the pelvic fins is preserved, displaying the thickened preaxial ray. The body is covered with fine shagreen; and larger tubercles, viewed from below or only seen as impressions, have the characters and disposition already noted in the specific description. The second fossil exhibits the com-plete anterior half of one of the pectoral fins, extending to the snout, in addition to portions of the skull, branchial arches, vertebral column, and pectoral arch. The pectoral fin is very broad, but rapidly tapers anteriorly. The region in advance of the pectoral arch is elongated, and is suggestive of an acute snout. The teeth are rounded and minute. The hinder portion of the fossil is much crushed, and only a few of the dermal tubercles are shown, scattered and displaced.

Remarks
valid after Claeson et al. (2013) p. 1027 [19627]

References
Villalobos-Segura, E. & Underwood, C.J. (2020)
Radiation and divergence times of Batoidea. Journal of Vertebrate Paleontology, 40(3), Article e1777147
DOI: 10.1080/02724634.2020.1777147
Cappetta, H. & Bardet, N. & Pereda Suberbiola, X. & Adnet, S. & Akkrim, D. & Amalik, M. & Benabdallah, A. (2014)
Marine vertebrate faunas from the Maastrichtian phosphates of Benguérir (Ganntour Basin, Morocco): Biostratigraphy, palaeobiogeography and palaeoecology. Palaeogeography, Palaeoclimatology, Palaeoecology, 409, 217–238
DOI: 10.1016/j.palaeo.2014.04.020
Claeson, K.M. & Underwood, C.J. & Ward, D.J. (2013)
†Tingitanius tenuimandibulus, a new platyrhinid batoid from the Turonian (Cretaceous) of Morocco and the cretaceous radiation of the Platyrhinidae. Journal of Vertebrate Paleontology, 33(5), 1019–1036
DOI: 10.1080/02724634.2013.767266
Brito, P.M. & Dutheil, D.B. (2004)
A preliminary systematic analysis of Cretaceous guitarfishes from Lebanon. In G. Arratia & A. Tintori (Eds.), Mesozoic Fishes 3 – Systematics, Paleoenvironments and Biodiversity (pp. 101–109). Verlag Dr. Friedrich Pfeil
Forey, P.L. & Yi, L. & Patterson, C. & Davies, C.E. (2003)
Fossil fishes from the Cenomanian (Upper Cretaceous) of Namoura, Lebanon. Journal of Systematic Palaeontology, 1(4), 227–330
DOI: 10.1017/S147720190300107X
Cappetta, H. (1980)
Les Sélaciens du Crétacé supérieur du Liban. II. Batoïdes. Palaeontographica, Abt. A, 168(5–6), 149–229
Signeux, J. (1951)
Notes Paléoichthyologiques. VI: Rhinobatidae du Crétacé du Liban. Bulletin du Muséum National d'Histoire Naturelle,(Série 2), 23(6): 693–695,1 pl.
Woodward, A.S. (1889)
Catalogue of the fossil fishes in the British Museum. Part. I. British Museum(Natural History): 474 p., fig., 17 pl.