Carcharhinus obscurus, LESUEUR, 1818

Charles L. Powell, Ii, Clites, Erica C. & Poust, Ashley W., 2019, Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA, PaleoBios 36, pp. 1-34 : 23

CARCHARHINUS OBSCURUS LESUEUR, 1818

FIG. 41

early Miocene L. columbiana ( Clark and Arnold, 1923) is distinguished by its smaller size and being more inflated. Lucinoma aequizonatum (Stearns, 1890) occurs in the eastern Pacific, however, it is not known from deposits older than middle Pleistocene (Powell and Ponti 2007), and is easily distinguished by its different shape and broader sculpture.

Figures

Figure 41. Carcharhinus obscurus tooth, hypotype UCMP 218505.