Holopus Orbigny 1837
Authors/Creators
- 1. Institut de Systématique, Evolution, Biodiversité (ISYEB) UMR 7205 CNRS-MNHN-SU-EPHE-UA, Muséum national d'Histoire naturelle, 57 rue Cuvier, 75005 Paris, France.
- 2. Institut de Systématique, Evolution, Biodiversité (ISYEB) UMR 7205 CNRS-MNHN-SU-EPHE-UA, Muséum national d'Histoire naturelle, 57 rue Cuvier, 75005 Paris, France. & Institut de Systématique, Evolution, Biodiversité (ISYEB) UMR 7205 CNRS-MNHN-SU-EPHE-UA, Muséum national d'Histoire naturelle, BP 225, 29182 Concarneau Cedex, France.
- 3. Institut de Systématique, Evolution, Biodiversité (ISYEB) UMR 7205 CNRS-MNHN-SU-EPHE-UA, Muséum national d'Histoire naturelle, BP 225, 29182 Concarneau Cedex, France.
Description
Genus Holopus Orbigny, 1837
Type-species. Holopus rangii Orbigny, 1837, by monotypy.
Remarks. For main discriminating characters between Holopus and Cyathidium, see Table 3. H. fabianii sp. nov. and H. spileccense are the only fossil species of Holopus for which both the aboral cup and brachials are described. H. plaziati is known only from brachials, and the Campanian species in Jagt et al. (2010) is known exclusively from a single aboral cup. We here present the first description of well-differentiated keystone plates as well as distal brachials in a fossil Holopus species.
Included fossil species and occurrences. Holopus fabianii sp. nov. (lower Lutetian of Chiampo Valley, north-eastern Italy), H. plaziati (lower Ypresian, Corbières, southern France), H. spileccense (lower Ypresian, Spilecco Hills near Bolca, north-eastern Italy), Holopus sp. in Jagt et al. (2010) (upper Campanian, Kronsmoor, northern Germany).
Stratigraphic distribution. Upper Campanian–Recent.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Orbigny
- Kingdom
- Animalia
- Phylum
- Echinodermata
- Order
- Cyrtocrinida
- Family
- Holopodidae
- Genus
- Holopus
- Taxon rank
- genus
- Taxonomic concept label
- Holopus Orbigny, 1837 sec. Martinez-Soares, Roux, Giusberti, Gatto, Eléaume & Améziane, 2024
References
- Jagt, J. W. M., Neumann, C. & Girod, P. (2010) First record of a holopodid crinoid from the late Campanian white chalk facies of northern Germany. In: Reich, M., Reitner, J., Roden, V. & Thuy, B. (Eds.), Echinoderm Research 2010. 7 th European Conference on Echinoderms, Gottingen, 2 - 9 October 2010, Abstract Volume and Field Guide to Excursions. Universitatsdrucke Gottingen, Gottingen, pp. 59 - 60.