New Eocene species of the crinoid genera Holopus and Cyathidium (Cyrtocrinida: Holopodidae) from north-eastern Italy
Author
Martinez-Soares, Pablo
Institut de Systématique, Evolution, Biodiversité (ISYEB) UMR 7205 CNRS-MNHN-SU-EPHE-UA, Muséum national d’Histoire naturelle, 57 rue Cuvier, 75005 Paris, France.
Author
Roux, Michel
0000-0003-3119-9609
Institut de Systématique, Evolution, Biodiversité (ISYEB) UMR 7205 CNRS-MNHN-SU-EPHE-UA, Muséum national d’Histoire naturelle, 57 rue Cuvier, 75005 Paris, France.
michel.roux51@gmail.com
Author
Giusberti, Luca
0000-0002-4401-5410
luca.giusberti@unipd.it
Author
Gatto, Roberto
0000-0001-5849-1242
roberto.gatto@unipd.it
Author
Eléaume, Marc
0000-0003-1999-1177
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.
marc.eleaume@mnhn.fr
Author
Améziane, Nadia
0000-0002-8546-9961
Institut de Systématique, Evolution, Biodiversité (ISYEB) UMR 7205 CNRS-MNHN-SU-EPHE-UA, Muséum national d’Histoire naturelle, BP 225, 29182 Concarneau Cedex, France.
nadia.ameziane@mnhn.fr
text
Zootaxa
2024
2024-11-28
5541
4
401
437
http://dx.doi.org/10.11646/zootaxa.5360.3.8
journal article
306215
10.11646/zootaxa.5541.4.1
5fa2643e-e446-4cfb-a3ff-df228ed120f4
1175-5326
14241160
4F812F60-9242-4F44-8E25-99381FD7E8B3
TABLE 7. Quantitative characters of the eight aboral cups in the type-series of Holopus fabianii sp. nov. Abbreviations: see Fig. 1A. *: estimated value (broken ossicle). D used as growth index. Values in mm except ratios. Holotype: MGP-PD 33232; Paratype 1: MGP-PD 33233; Paratypes 2–7: MGP-PD 33234.| Specimen | D | H | h | ht | Db | Dcs | Wr | H/D | H/h | H/ht | D/Dcs |
|---|
| Paratype 7 | 1.8 | 1.7 | 1.7 | 0.8 | 1.2–1.7 | 1.6 | 1.2 | 0.98 | 1.00 | 2.07 | 1.13 |
|---|
| Paratype 1 | 2.5 | 3.0 | 2.8 | 1.6 | 1.7–2.3 | 1.7 | 1.4 | 1.21 | 1.06 | 1.83 | 1.49 |
|---|
| Holotype | 2.7 | 3.9 | 3.7 | 2.5 | 3.1 | 1.8 | 1.7 | 1.39 | 1.02 | 1.53 | 1.49 |
|---|
| Paratype 6 | >3* | 4.4 | - | 2.1 | 3.2–4.1 | 3.1 | - | <1.4* | - | 1.35 | 1.06 |
|---|
| Paratype 3 | 3.3 | 4.9 | 3.8 | 2.8 | 5.0 | 3.2 | - | 1.48 | 1.29 | 1.74 | 1.03 |
|---|
| Paratype 5 | >4* | 5.1 | - | 3.7 | >2.7* | 2.4 | - | <1.4* | - | 1.35 | >1.5* |
|---|
| Paratype 4 | - | >5* | >3* | - | 4.5–5.3 | - | - | - | 1.6* | - | - |
|---|
| Paratype 2 | 4.6 | 6.5 | 6.5 | 4.5 | 7.3–8.1 | 3.9 | 2* | 1.42 | 1.00 | 1.44 | 1.17 |
|---|