WoRMS name details

Mariametroidea AH Clark, 1909

607443  (urn:lsid:marinespecies.org:taxname:607443)

 unaccepted (junior synonym)
marine, brackish, fresh, terrestrial
Not documented
Messing, C.; Gondim, A.I.; Taylor, K. (2023). World List of Crinoidea. Mariametroidea AH Clark, 1909. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=607443 on 2023-12-11
2012-08-16 09:51:32Z
2015-01-04 21:53:27Z
2015-01-06 02:24:43Z

Creative Commons License The webpage text is licensed under a Creative Commons Attribution 4.0 License

additional source 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. [details]   
From editor or global species database
Diagnosis Comatulidina with centrodorsal low hemispherical to discoidal. No aboral star. Cirrus sockets without distinct ornament or with slightly elevated rim around lumen; crowded in 1-3 irregular marginal tiers. Adoral surface of centrodorsal and aboral surface of radials with shallow, radial, coelomic depressions or radiating furrows in several genera. Centrodorsal cavity less than 30% of centrodorsal diameter. Cirrals aborally rounded or carinate, sometimes with aboral spines. Basal rosette; no rod-shaped basals except in some fossils. Radial articular usually flat; interarticular ligament fossae high and broad. Adoral muscle fossae usually small, narrow, crescentic bands. Radial cavity moderate to large with spongy calcareous plug. Flat synarthry between first pair of brachitaxis ossicles and first free brachials, except for syzygy between primibrachials in Zygometridae and Eudiocrinidae. Syzygy at 3+4; distal syzygial interval usually large. Oral pinnules sometimes carinate. Ambulacral covering plates inconspicuous or absent. Mouth central.