Retiskenea

Kaim, Andrzej, Jenkins, Robert G., Tanabe, Kazushige & Kiel, Steffen, 2014, Mollusks from late Mesozoic seep deposits, chiefly in California, Zootaxa 3861 (5), pp. 401-440 : 412

Retiskenea ? tuberculata Campbell et al., 2008

( Fig. 5A–D )

Material and occurrence. Many specimens, three illustrated (GZG.INV.84973-75) from Bear Creek (Valanginian, Early Cretaceous).

Remarks. R.? tuberculata was known so far from the Rice Valley and Wilbur Springs localities (Campbell et al. 2008), both Hauterivian in age (see localities #3 and # 5 in Kiel et al, 2008b). Here we report abundant occurrence of this species from Bear Creek locality that is probably Valanginian.

Figures

FIGURE 5. A – D. Retiskenea? tuberculata Campbell et al., 2008 from Valanginian (Early Cretaceous) seep carbonates at Bear Creek, Colusa County, California, USA. A, C. GZG. INV. 84973. B. GZG. INV. 84974. D. GZG. INV. 84975. E – I. Retiskenea? kieli Campbell et al., 2008 from Tithonian (Late Jurassic) seep carbonates at Paskenta, Tehama County, California, USA; GZG. INV. 84976.