Rhinobatos antunesi ( Jonet, 1968 )

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 : 34

Rhinobatos antunesi ( Jonet, 1968)

Plate 6, Figs 11–14

* Rhinobatus antunesi Jonet, 1968: 241 , pl. 1, figs 6a–c.

Rhinobatos aff. antunesi ( Jonet, 1968) — Cappetta 1970: 80, pl. 23, figs 7–15.

Rhinobatos antunesi ( Jonet, 1968) — Schultz 2013: 97, pl. 12, figs 1a, b, 4.

Rhinobatos antunesi ( Jonet, 1968) — Fialho et al. 2019: 5, figs 2h–k.

Rhinobatos antunesi ( Jonet, 1968) — Fialho 2022: 133, pl. 6, figs D, E.

Material. Six isolated teeth. NHMW 2025/0177/0034 (4).

Description. The teeth (Pl. 6, figs 11, 12) possess a principal cusp that has a rounded labial edge and a tri-lobed lingual part with a relatively long central uvula that is twice as long as its width in the anterior tooth (Pl. 6, fig. 11) and one and a halve times as long as its width in the more lateral tooth (Pl. 6, fig. 12). The root is divided into two root lobes by a deep median groove that are labiolingually broader at the labial margin and narrow halfway along its length. The other two teeth (Pl. 6, figs 13, 14) are represented by a crown only. The teeth are similar to the original illustration of Jonet (1968: pl. 1, figs 6a–c).

Discussion. Rhinobatos antunesi ( Jonet, 1968) is widely accepted as a valid species.

Distribution. Lower-Middle Miocene: Paratethys ( Schultz 2013); Proto-Mediterranean, southern France ( Cappetta 1987).

Distribution in Portugal. Middle Miocene: (Langhian) Lower Tagus Basin, Portugal ( Jonet 1968; Fialho et al. 2019). Upper Miocene: (Tortonian) Algarve Basin, Cacela Fm. (this paper).