Retiskenea, Waren and Bouchet, 2001

Kiel, Steffen, Aguilar, Yolanda M. & Kase, Tomoki, 2020, Mollusks from Pliocene and Pleistocene seep deposits in Leyte, Philippines, Acta Palaeontologica Polonica 65 (3), pp. 589-627 : 616

Retiskenea ? sp.

Fig. 29A–C .

Material.— Three specimens from the Pliocene of Liog-Liog Point ( NMNS PM 28435–28437 ) .

Dimensions (in mm).—NMNS PM 28435, W = 4.8, H = 3.9.

Remarks.—The specimens from Liog-Liog Point have a lower spire than the extant R. diploura , than the Eocene– Oligocene R. statura ( Goedert and Benham, 1999) from Washington state ( Goedert and Benham 1999), and also than the early Oligocene Retiskenea ? sp. from northern Peru ( Kiel et al. 2020). Most similar is the Cretaceous R.? tuberculata Campbell, Peterson, Alfaro, 2008 from California ( Campbell et al. 2008).

Figures

Fig. 29. Neomphaline and Vetigastopoda from late Pliocene (A–F, Liog-Liog Point) and Pleistocene (G, Antipolo Point) seep deposit in Leyte, Philippines. A–C. The neomphalid Retiskenea sp. A. NMNS PM 28435, in apical (A1) and apertural (A2) views. B. NMNS PM 28436, apertural view. C. NMNS PM 28437, apertural view. D. The neomphalid Planorbidella sp., NMNS PM 28438, in apical (D1) and apertural (D2) views, and close-up on protoconch (D3). E. Lopheliella? sp., NMNS PM 28442, apertural view, note umbilical slit bordered by distinct ridge. F. The skeneid vetigastropod Dillwynella sp., NMNS PM 28441, apical view. G. The trochoid vetigastropod Solariella sp., NMNS PM 28443, apical view.