Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

New Brittle Stars (Echinodermata, Ophiuroidea) from the Oligocene of the Mainz Basin, Germany

Version 1 : Received: 4 April 2022 / Approved: 5 April 2022 / Online: 5 April 2022 (08:41:15 CEST)

How to cite: Thuy, B.; Nungesser, K.; Numberger-Thuy, L. New Brittle Stars (Echinodermata, Ophiuroidea) from the Oligocene of the Mainz Basin, Germany. Preprints 2022, 2022040021 (doi: 10.20944/preprints202204.0021.v1). Thuy, B.; Nungesser, K.; Numberger-Thuy, L. New Brittle Stars (Echinodermata, Ophiuroidea) from the Oligocene of the Mainz Basin, Germany. Preprints 2022, 2022040021 (doi: 10.20944/preprints202204.0021.v1).

Abstract

The fossil record of the Ophiuroidea is still patchy, especially in the Cenozoic. Only four species have been described from the entire Oligocene, which is in stark contrast to the present-day diversity counting more than 2000 species. Here, we describe two new species of ophiuroid, Ophiura tankardi sp. nov. and Ophiodoris niersteinensis sp. nov., from the Lower Oligocene of the Mainz Basin. The species are based on microfossils extracted from the sieving residues of bulk sediment samples from a flush drill in Nierstein, Rhineland-Palatinate. The new species belong to extant genera and add to the poor Oligocene fossil record of the class. Based on present-day distributions, the occurrence of Ophiodoris suggests deep sublittoral to shallow bathyal palaeodepths for the Nierstein area of the Mainz Basin.

Keywords

Ophiuroidea; microfossils; fossil record; new species; Cenozoic

Subject

EARTH SCIENCES, Palaeontology

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.