WoRMS name details
Mariametracea AH Clark, 1909
246660 (urn:lsid:marinespecies.org:taxname:246660)
unaccepted (synonym)
Superfamily
marine, brackish, fresh, terrestrial
Clark, A. H. (1909). New genera and higher groups of unstalked crinoids. <em>Proceedings of the Biological Society of Washington.</em> 22:173-178. [details]
Messing, C.; Gondim, A.I.; Markello, K.; Poatskievick Pierezan, B.; Taylor, K.; Eléaume, M. (2025). World List of Crinoidea. Mariametracea AH Clark, 1909. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=246660 on 2025-04-16
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Nomenclature
original description
Clark, A. H. (1909). New genera and higher groups of unstalked crinoids. <em>Proceedings of the Biological Society of Washington.</em> 22:173-178. [details]
From editor or global species database
Diagnosis Comatulidina with no aboral star; cirrus sockets without distinct ornament; often with shallow radial coelomic depressions or radiating furrows in adoral side of centrodorsal and aboral side of radials. Basals lack rod-shaped interradial extensions. Radial articular facets sloping to almost parallel to oral-aboral axis; usually flat and separated by narrow interradial margins. Interarticular ligament fossae large, tall and broad. Adoral muscle fossae usually forming narrow crescentic adoral band; sometimes triangular. Radial cavity with spongy calcareous plug. Oral pinnules may be more or less carinate. Ambulacral covering plates inconspicuous or absent. Mouth central. [details]
