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WoRMS taxon detailsPtilocrinus Clark, 1907
marine,
Clark, A. H. (1907). A new species of crinoid (Ptilocrinus pinnatus) from the Pacific Coast, with a note on Bathycrinus. <em>Proceedings of the U.S. National Museum.</em> 32:551–554. [details]
Messing, C.; Gondim, A.I.; Markello, K.; Poatskievick Pierezan, B.; Taylor, K.; Eléaume, M. (2024). World List of Crinoidea. Ptilocrinus Clark, 1907. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=173917 on 2024-11-15
Date action by
original description
Clark, A. H. (1907). A new species of crinoid (Ptilocrinus pinnatus) from the Pacific Coast, with a note on Bathycrinus. <em>Proceedings of the U.S. National Museum.</em> 32:551–554. [details]
basis of record Roux M, Lambert P (2011) Two new species of stalked crinoids from the northeastern Pacific in the genera <i>Gephyrocrinus</i> and <i>Ptilocrinus</i> (Echinodermata, Crinoidea, Hyocrinidae). Effects of ontogeny and variability on hyocrinid taxonomy. <i>Zootaxa</i> 2825:1–54. [details] additional source Eléaume, Marc (look up in IMIS) [details] additional source Hess H. (2011). Hyocrinida. <em>In: Hess H, Messing CG, Ausich WI (Eds.), Treatise on Invertebrate Paleontology, Part T, Echinodermata 2 Revised, Crinoidea, vol. 3. University of Kansas Press, Lawrence, Kansas.</em> 172–179. [details]  Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Classification Placed in family Plicatocrinidae by Clarke & Johnston (2003). [details]Diagnosis Hyocrinidae with 5 unbranched arms; proximal arm pattern usually 1+2 3 4 5+6 7+8 or 7 8+9 with first pinnule on Br4, or on Br5 with 1+2 3 4+5. Four proximal brachials nearly equal in height and width. Pinnules relatively rigid without both conspicuous genital expansion and H-shaped plates; lateral plates of the same size or smaller than cover plates, and number and extension in proximal pinnule variable. Tegmen moderately to highly inflated with moderately sized orals and variable anal cone close to oral cone. Aboral cup usually smooth, rarely with small transverse ridges; primibrachials about 2/3 radial width; basals three or usually fused. Stalk symplexies with 6–9 crenular units; distal syzygies frequently with well-developed crenularium. [details] |
