Plio-Pleistocene deep-sea crinoid (Echinodermata) diversity from the western Rodrigues Ridge, Indian Ocean, revealed by microfossil evidence Author Roux, Michel Muséum national d’Histoire naturelle, UMR 7205 ISYEB MNHN-CNRS-UPMC-EPHE, Département Systématique et Évolution, CP 51, 57 rue Cuvier, 75231 Paris Cedex 05, France. Author Thuy, Ben National Museum of Natural History Luxembourg, 25 rue Münster, L- 2160 Luxembourg City, Luxembourg. Author Gale, Andy S. School of the Environment, Geography and Geological Sciences, University of Portsmouth, Burnaby Building, Burnaby Road, Portsmouth PO 1 3 QL UK. & Department of Earth Sciences, Natural History Museum, Cromwell Road, London SW 7 5 BD, UK. text Zootaxa 2025 2025-02-04 5583 3 509 525 https://doi.org/10.11646/zootaxa.5583.3.5 journal article 308085 10.11646/zootaxa.5583.3.5 46919b01-2f24-4ddc-9980-89f6ee4dc424 1175-5326 14804595 E6BC5024-7577-46A6-A1C3-F6B2BEBF1C5D

TABLE 4. Quantitative characters of Porphyrocrinus polyarthra brachials from the site RR13A on the western Rodrigues Ridge. H: height, D: diameter, H/D: thickness, hypo: proximal brachial of a brachial pair, epi: distal brachial with pinnule socket of a brachial pair. Values in mm except ratio.

Catalogue n°	H	D	H/D	type	Figure
OPH204 a	0.62	1.12	0.55	hypo	Fig. 4A–B
OPH204 b	0.90	1.53	0.59	epi	Fig. 4D–E, H
OPH204 c	0.95	1.35	0.70	epi	Fig. 4G
OPH205 a	0.80	1.59	0.50	hypo	not figured
OPH205 b	1.05	1.57	0.67	epi	not figured
OPH205 c	1.06	1.65	0.64	epi	not figured
OPH205 d	0.85	1.55	0.55	hypo	not figured
OPH205 e	1.25	1.70	0.73	free	not figured
OPH205 f	1.05	1.35	0.78	free	not figured