Lactarius kokeni (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 : 79

Lactarius kokeni (Dante & Frizzell, 1965)

Fig. 28F–J

Brazosiella kokeni Dante & Frizzell in Frizzell & Dante, 1965: 700, pl. 87 figs 25, 30, 32–34, 36.

Lactarius kokeni – Nolf 1985: 84; 2013: 98, pl. 238. — Müller 1999: 151, fig. 32/12–16. — Ebersole et al. 2019: 205, fig. 71a–b.

Remarks

See under L. amplus for the differences between both American Lactarius species. The genus name Brazosiella Dante & Frizzell in Frizzell & Dante (1965) is a junior synonym of Lactarius .

Stratigraphic and geographic distribution

Lutetian: Weches Formation and “Stone City beds”, Texas; Dobys Bluff Tongue of Kosciusko Formation, Mississippi; “lower” Lisbon Formation, Alabama; Piney Point Formation, Virginia. Bartonian: Cook Mountain Formation, Texas and Mississippi; “upper” Lisbon Formation and Gosport Sand, Alabama.

Figures

Fig. 28. Fish otoliths from the US middle and upper Eocene. A–E. Lactarius amplus Stinton, 1978, “Stone City beds”, Stone City Bluff, Brazos River, sample 2 from bed P, Texas (IRSNB P 10171– 10175). F–J. Lactarius kokeni (Dante & Frizzell, 1965), “Stone City beds”, Stone City Bluff, Brazos River, sample 2 from bed P, Texas (IRSNB P 10176–10180). 1 = ventral view; 2 = inner view. Scale bars = 1 mm.