Diagnosis
provided by World Register of Marine Species
Centrodorsal conical, with narrow centrodorsal cavity; adoral rim with 5 interradial grooves to accommodate flat, tongue-like basals. A few small perforations between cirrus sockets connect centrodorsal cavity with exterior. Cirrus sockets initially arising as tubes along adoral surface of centrodorsal, in 10 or 15 columns, with well-developed, projecting, lateral, triangular fulcral processes. No rosette. Arms 5, undivided, composed of low triangular brachials. Synarthry between brachials 1-2. First syzygy between brachials 4-5, with few radiating ridges. First pinnule on brachial 2.
- license
- cc-by-4.0
- copyright
- WoRMS Editorial Board
- bibliographic citation
- Hess H, Messing CG (2011) Comatulida. In: Hess H, Messing CG, Ausich WI. Treatise on Invertebrate Paleontology, Part T, Echinodermata 2 Revised, Crinoidea, vol. 3. University of Kansas Press, Lawrence, Kansas, pp. 70–146.
- contributor
- Messing, Charles, C.G.
