WoRMS source details

Hess H. (2011). Hyocrinida. 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. 172–179.
165208
Hess H.
2011
Hyocrinida.
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
172–179
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2013-01-12 18:30:12Z
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Checked: verified by a taxonomic editor Diagnosis
 for Checked: verified by a taxonomic editorHyocrinida

Articulata with cup thin walled, hollow, formed by basals and radials; infrabasals absent; basals fused or with 1 ... [details]

Checked: verified by a taxonomic editor Diagnosis

Hyocrinidae with basals 3 or fused, forming a circlet without distinct sutures. Width of distal radial articular ... [details]

Checked: verified by a taxonomic editor Diagnosis

Hyocrinidae with basals 3 or fused. The most frequent proximal arm pattern with second nonmuscular articulation ... [details]

Checked: verified by a taxonomic editor Diagnosis

Hyocrinidae with basals fused; aboral side of basal circlet flanged. Arms 5, exceptionally branching at brachial 4. ... [details]

Checked: verified by a taxonomic editor Diagnosis

Hyocrinidae with basals fused or basal circlet with 1-3 sutures. Arms moderately narrow. Width of distal radial ... [details]

Checked: verified by a taxonomic editor Diagnosis

Hyocrinidae with Basals fused or with a few inconspicuous sutures, aboral side of basal circlet flanged. Arms ... [details]

Checked: verified by a taxonomic editor Diagnosis

Hyocrinidae with structure of cup unknown. Second nonmuscular articulation between brachials 4-5; middle part of arm ... [details]

Checked: verified by a taxonomic editor Diagnosis

Hyocrinidae with three basals with distinct sutures. Width of distal radial articular facet 40-50 percent of upper ... [details]

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Same as for order. [details]

Checked: verified by a taxonomic editor Diagnosis

Same as genus. [details]