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Taxonomic revision of Cidaris echinoids (Echinodermata) with "fan-shaped" radioles from the Serravallian (Miocene) of Motta San Giovanni Formation (Calabria, Italy)

Year: 2025

Type: article

Abstract: Fossil remains of fan-shaped spines Cidaris have been largely described in the literature since the 19th century. However, it is the first time that they have been found in serravalian outcrops in the vicinity of Motta San Giovanni and Musuponiti (Calabria, Southern Italy). Modern description of numerous test fragments and spines collected in the field allows classifying these remains of Cidaris in their taxonomic context. The graphic analysis of biometric measurements carried in this study made it possible to name Cidaris remiger (Ponzi, 1876) as representative of the calabrian fossils as well as the other fossils studied or known. This taxonomy facilitates the comparisons with the present-day known examples, namely Cidaris blakei (Agassiz, 1878) and helps clarify the paleo-depth of the Motta San Giovanni formation deposits at these localities.

Source: HAL (Le Centre pour la Communication Scientifique Directe)

DOI: 10.5281/zenodo.14802580

Authors: Nicolleau, Philippe, Vadet, Alain, Barrier, Pascal, Bailleul, Julien, Brocheray, Sandra, Kezirian, Francis, Rohais, Sébastien, Guillet de Chatellus, Foulques, Marchiel, Adrien, Prosperi, Alice, Rispal, Nathan

Institutions: Muséum national d'Histoire naturelle, Musée national d'histoire naturelle Luxembourg, UniLaSalle, IFP Énergies nouvelles, Université Côte d'Azur

Language: English

Topic: Paleontology and Stratigraphy of Fossils

Subfield: Paleontology

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W6949221724

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