A new, first fossil species of Ophioderma MHller and Troschel, 1842 (Echinodermata: Ophiuroidea) (Late Miocene, Argentina)
Martínez, Sergio
Del, Claudia J.
Zootaxa
2008
1841
43
52
Muller and Troschel, 1842
Muller and Troschel
1842
[151,638,797,823]
Ophiuroidea
Ophiodermatidae
Ophioderma
Animalia
Ophiurida
4
47
Echinodermata
genus
Typespecies. Asterias longicauda Retzius, 1805, by subsequent designation, Clark, 1915. Although the most conspicuous characteristic of the genus, i.e. the genital slits, are not visible, the presence of large disks with very small scales covered by granules, firmy fused subrounded arms, very short, flat, and addpressed arm spines, and two flat genital scales, lead us to include the fossils in Ophioderma.