Diagnosis
provided by World Register of Marine Species
Cainocrinidae with arms divided at primibrachial 2 and further divided at variable intervals of 1-6 brachials. Cryptosyzygy between primibrachials 1-2 and generally between brachials 2-3 or brachials 3-4 of succeeding brachial series, also in undivided distal branches more distally. Number of arm divisions increasing during growth by augmentative regeneration, each division generally following a cryptosyzygy. Synarthry may occur between brachials 1-2 in each brachial series. Nodals larger than internodals, with 5 subcircular cirrus sockets facing outward and commonly reaching lower edge of nodal.
- license
- cc-by-4.0
- copyright
- WoRMS Editorial Board
- bibliographic citation
- Hess H. (2011). Isocrinida. <em>In: Hess, H., Messing, C.G., Ausich, W.I. (Eds.), Treatise on Invertebrate Paleontology, Part T, Echinodermata 2 Revised, Crinoidea, vol. 3. University of Kansas Press, Lawrence, Kansas.</em> 42–69.
- contributor
- Messing, Charles, C.G.
