Work

Kelheimia Gründel & Nützel, 2024, gen. nov.

Year: 2024

Type: other

Abstract: GenusKelheimiagen. nov. Derivatio nominis. After the city of Kelheim that is close to the Saal quarry. Type species. Kelheimia triangulata n. sp.; upper Kimmeridgian; South Germany. Diagnosis. Shell broadly trochiform, conical, slightly coeloconoid with early whorls more slender than late whorls; early whorls with ornament of intersecting spiral cords and axial ribs; late whorls ornamented with few wide spiral cords; transition from whorl face to base at sharp, angular edge; base slightly convex, covered with spiral cords; aperture large with circular lumen and callous inner lip; growth lines straight, prosocline. Remarks. Pyrgotrochus P. Fischer, 1885 and Conotomaria Cox, 1959 have more evenly increasing whorls, a less pronounced ontogenetic sculptural change, a flat base and a selenizone located well above the abapical suture.

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.14395394

Authors: Gründel, Joachim, Nützel, Alexander

Institutions: Freie Universität Berlin, Bayerische Staatssammlung für Paläontologie und Geologie, Bavarian Natural History Collections, Ludwig-Maximilians-Universität München

Language: English

Topic: Paleontology and Stratigraphy of Fossils

Subfield: Paleontology

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W6911638128

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