Oonia kimmeridgiensis, Gründel & Nützel, 2024

Gründel, Joachim & Nützel, Alexander, 2024, Late Jurassic (Upper Kimmeridgian) gastropods from Saal near Kelheim (Germany, Bavaria), Zitteliana 98, pp. 19-72 : 19-72

publication ID

https://doi.org/ 10.3897/zitteliana.98.e138605

publication LSID

lsid:zoobank.org:pub:9FB6F185-9EA1-48EB-A5C9-632BD52A8B6F

DOI

https://doi.org/10.5281/zenodo.14395461

persistent identifier

https://treatment.plazi.org/id/253D72D5-2587-5C69-B623-F153ACAA5F35

treatment provided by

Zitteliana by Pensoft

scientific name

Oonia kimmeridgiensis
status

sp. nov.

Oonia kimmeridgiensis sp. nov.

Plate 8: figs 6, 7 View Plate 8

Etymology.

After the Kimmeridgian stage.

Holotype.

SNSB-BSPG 2016 XXI 1791 .

Paratypes.

2 specimens, SNSB-BSPG 2016 XXI 1792 –1793.

Type locality and stratum.

Upper Jurassic (Kimmeridgian) reefal limestones from the locality Saal near Kelheim, Lower Bavaria ( Gründel et al. 2015, 2022).

Diagnosis.

Shell slender, oval; spire whorls low; body whorl much higher than spire, with weakly, evenly convex whorl face.

Description.

Shell slender, oval, higher than wide; holotype 18 mm high; sutures distinct; body whorl nearly two times higher than spire, with weakly, evenly convex whorl face; periphery low on whorl; transition from whorl face to base evenly rounded; base stronly convex; shell smooth; growth lines weakly parasigmoidal; aperture incomplete, probably teardrop-shaped.

Remarks.

Similar species (e. g., Oonia guirandi Loriol in Loriol and Bourgeat 1886–1888, Pseudomelania (Oonia) cornelia (d’Orbigny) sensu J. – C. Fischer et al. (2001) and Fischer and Weber 1997, Ampullospira (Pictavia) calypso (d’Orbigny) sensu Fischer and Weber 1997 ) usually have higher spire whorls, but above all, a wider and more convex body whorl.

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

SubClass

Caenogastropoda

SuperFamily

Campaniloidea

Family

Ampullinidae

SubFamily

Ampullospirinae

Genus

Oonia