Family CALOMETRIDAE
Compiler and date details
2012 - Tim O'Hara, Museum Victoria, Carlton, Victoria, Australia
2001 - Tim O'Hara, Museum Victoria, Carlton, Victoria, Australia
1995 - F.W.E. Rowe & J. Gates, Australian Museum, Sydney, New South Wales, Australia
Introduction
The family Calometridae is known from the western Pacific region from five genera Two genera are recorded in Australian waters represented by five species.
Calometrids are distinguished from other families in the order Comatulida by the following combination of character states: arms ten or more; pinnules as in Tropiometridae but with conspicuous covering and side plates; pinnule combs absent; P1 delicate and weak but with first two segments enormously enlarged; cirrus segments with dorsal ridge or spine.
General References
Clark, A.H. 1947. A monograph of the existing crinoids. Vol. 1. The comatulids. Part 4b.— Superfamily Mariametrida (concluded—the family Colobometridae) and superfamily Tropiometrida (except the families Thalassometridae and Charitometridae). Bulletin of the United States National Museum 82: 1-473 pls 1-43
Rasmussen, H.W. & Sieverts-Doreck, H. 1978. Articulata. pp. T813-T1027, figs 549-619 in Moore, R.C. & Teichert, C. (eds). Treatise on Invertebrate Paleontology. Part T. Echinodermata 2. Crinoidea. Kansas : Geological Society of America and University of Kansas Press Vol. 3.
History of changes
| Published | As part of group | Action Date | Action Type | Compiler(s) |
|---|---|---|---|---|
| 15-Sep-2023 | 11-Dec-2012 | MODIFIED | ||
| 12-Feb-2010 | (import) |