Eocypraea batequensis, GROVES, 2011

Groves, Lindsey & Squires, Richard L., 2023, Revision of northeast Pacific Paleogene cypraeoidean gastropods, including recognition of three new species: implications for paleobiogeographic distribution and faunal turnover, PaleoBios 40 (10), pp. 1-52 : 23

publication ID	https://doi.org/ 10.5070/P9401057774
publication LSID	lsid:zoobank.org:pub:11600574-2B0E-4C13-BC08-A3A5EF9EE562
DOI	https://doi.org/10.5281/zenodo.13887877
persistent identifier	https://treatment.plazi.org/id/921FD94C-FFCB-FFB0-FF79-FDFDFEC0F90F
treatment provided by	Felipe
scientific name	Eocypraea batequensis
status

Treatment

EOCYPRAEA BATEQUENSIS GROVES, 2011 View in CoL

FIGS. 7D–F View Figure 7

Eocypraea ? sp. Squires and Demetrion, 1992. p. 31, figs. 77–79.

Eocypraea (Eocypraea) n. sp. 1. Groves, 1997. p. 8 [as E. (E.) n. sp. 1].

Eocypraea (Eocypraea) batequensis Groves, 2011 . p. 46 (table 1), 49, figs. 5, 6.

Grovesia batequensis (Groves) . Fehse, 2021. p. 44.

Holotype and Type Locality— IGM 5174 View Materials ( Figs.7D–F View Figure 7 ), length 9.4 mm, width 6.5 mm, height 5.1 mm. LACMIP Locality 16951 [ex CSUN Locality 1220b], Bateque Formation, Mesa La Salina, Baja California Sur, México ( Squires and Demetrion, 1992).

Occurrence— Lower Eocene. “Capay Stage,” Baja California Sur, México.

Etymology— Originally named for the Eocene Bateque Formation, Baja California Sur, México.

Description— Shell small in size. Shell ovate, smooth, dorsal moderately inflated with central area flat. Spire covered. Aperture gently curved and moderately wide, opening anteriorly; denticulation well developed on both sides of aperture. Labial lip (outer lip) with approximately 30 teeth,strongest ones on central part of lip. Columellar lip (outer lip) with approximately 20 teeth, becoming smaller toward exhalant canal (posterior canal). Labial lip teeth slighty stronger than columellar lip teeth. Terminal ridge present on left side of columellar lip. Anterior end of shell slightly flattened out and projecting short distance. Posterior end of shell not projecting. Border on basal lateral margin of shell (Groves 2011: p. 49).

Remarks— Eocypraea batequensis is known only from its holotype.

References

Figures

Figure 7A–C. Cypraeidae, genus and species indeterminate, Lodo Formation (basal) (Paleocene, Seldanian Stage), Tumey Hills, Fresno County, central California. Basal (A), dorsal (B), and right (labral) (C) views, 1.3x, length 39 mm, width 25 mm, height 22 mm, of hypotype CASG 61666.06, CASG Locality 61666. D–F. Eocypraea batequensis (Groves, 2011), Bateque Formation (Eocene, “Capay Stage”), Mesa La Salina, Baja California Sur, México. Basal (D), dorsal (E), and right (labral) (F) views, 4.8x, length 9.4 mm, width 6.5 mm, height 5.1 mm, of holotype IGM 5174, LACMIP Locality 16951 [ex CSUN Locality1220b]. G–I. Eocypraea crescentensis (Groves, 2011), Crescent Formation (Eocene, “Capay Stage”), Larch Mountain, Black Hills area, Thurston County, Washington. Basal (G), dorsal (H), and left (columellar) (I) views, 3.9x, length 10.9 mm, width 7.6 mm, height 6.1 mm, of holotype LACMIP 16655.40, LACMIP Type 13646, LACMIP Locality 16655 [= LACMIP Locality 41563; ex CSUN Locality 1563]. J–L. Eocypraea jimgoederti (Groves, 2011), lower McIntosh Formation (middle Eocene, “Transition Stage” to “Tejon Stage”), Doty Hills, Lewis County, Washington. Basal (J), dorsal (K), and left (columellar) side (L) views, 3.5x, length 12.7 mm, width 8.2 mm, height 6.9 mm, of holotype LACMIP 41573.1, LACMIP Type 13647, LACMIP Locality 41573 [ex CSUN Locality 1573]. M–O. Eocypraea judithsmithae n. sp., Llajas Formation (Eocene, “Domengine Stage”), north side Simi Valley, Ventura County, southern California. Basal (M), dorsal (N), and left (labral) (O) views, 1.5x, length 26.6 mm, width 18.4 mm, height 12.6 mm, of holotype LACMIP 40372.1, LACMIP Type 14940 (LACMIP Locality 40732).