Sciaena pseudoradians (Dante & Frizzell, 1965 )

Lin, Chien-Hsiang & Nolf, Dirk, 2022, Middle and late Eocene fish otoliths from the eastern and southern USA, European Journal of Taxonomy 814, pp. 1-122 : 90

Sciaena pseudoradians (Dante & Frizzell, 1965)

Fig. 34A–E

Corvina pseudoradians Dante & Frizzell in Frizzell & Dante, 1965: 707, pl. 87 figs 31, 35, pl. 88 figs 26, 28.

? Umbrina pseudoradians – Schwarzhans 1993: 79, fig. 128.

Sciaena aff. pseudoradians – Nolf & Stringer 2003: 6, pl. 6 figs 3–5.

Sciaena pseudoradians – Nolf 2003: 8, pl. 2 figs 3–6; 2013: 106, pl. 277.

Sciaena aff. S. pseudoradians – Stringer et al. 2022: 9, fig. 4f–k.

Remarks

Otoliths of S. pseudoradians have a very wide ostium, which is the widest among the here treated sciaenid species. They are also characterized by a rather short caudal end that does not extend lower than the margin of the ostial crista inferior. These features allow an allocation of the species to the Recent genus Sciaena . Sciaena pseudoradians is essentially collected from lower Oligocene sites, but some imperfectly preserved otoliths are also known from the Priabonian Yazoo Clay (see Nolf 2003: 8). Our specimens from the Cook Mountain Formation of Texas extend further back their existing age.

Stratigraphic and geographic distribution

Bartonian: Wheelock Member, Texas; Moodys Branch Formation, Louisiana, Mississippi and Alabama. Priabonian: Yazoo Clay, Louisiana and Mississippi.

Figures

Fig. 34. Fish otoliths from the US middle and upper Eocene. A–E. Sciaena pseudoradians (Dante & Frizzell, 1965). A–C. Yazoo Clay, Copenhagen, Louisiana (IRSNB P 10225–10227). D. Yazoo Clay, Shubuta Clay M., Cynthia, Mississippi Lite clay pit, Mississippi (IRSNB P 10228). E. Moodys Branch F., Jackson, boring at the corner of Amite & Mill Streets, Mississippi (IRSNB P 10229). F–J. “Sciaena” eanesi (Müller, 1999). F. Gosport Sand, Little Stave Creek, Alabama (IRSNB P 10230). G. “Stone City beds”, Stone City Bluff, Brazos River, sample 2 from bed P, Texas (IRSNB P 10231). H–J. Piney Point F., Pamunkey River, Devil’s Hole, Virginia (loc. 19 of Müller), paratypes (IRSNB P 10232–10234). 1 = ventral view; 2 = inner view. Scale bars = 1 mm.