Carcharhinus cf. brachyurus ( Günther, 1870 )

Hovestadt, Dirk C. & Da Silva, Carlos M., 2025, A new chondrichthyan (Sharks and Rays) Fossil Assemblage from the Miocene Cacela Fm. at Albufeira (Algarve, Portugal) with two new species: Palaeoecology and Biogeography, Zootaxa 5724 (1), pp. 1-66 : 25

Carcharhinus cf. brachyurus ( Günther, 1870)

Plate 4, Figs 60–71

cf. * Carcharhias brachyurus Günther 1870: 369 .

cf. Carcharhias brachyurus (Günther) — Esteves & Silva 2014: 4, pl. 1, fig. 5.

Material. 27 isolated teeth. NHMW 2025 /0177/0003 ( 9 specimens) .

Description. The upper teeth ( Pl. 4, figs. 60–67) have, besides their significantly larger size, similarity with those of C. priscus but with a coarser serration of both mesial and distal cutting edges. The lower teeth ( Pl. 4, figs 68–71) possess a relatively low principal cusp, strongly constricted near the base with a mild serration on mesial and distal cutting edges. The root is divided into two equal sized wide root lobes and a straight base (diverging at 180°).

Discussion. The dentition of extant specimens Carcharhinus brachyurus ( Günther 1870) was illustrated by Bass et al. (1973: 162, pl. 11), that is used to identify the fossil remains.

Distribution. Today this species lives in shallow epipelagic waters to at least 100 m and occurs in the Indo Pacific, Atlantic and Mediterranean, after Ebert et al. (2016).

Distribution in Portugal. Lower Miocene: (Burdigalian), Lower Tagus Basin, Portugal ( Esteves & Silva, 2014). Upper Miocene: (Tortonian) Algarve Basin, Cacela Fm. (this paper).