WoRMS source details

Hess H. (2011). Isocrinida. In: Hess, H., Messing, C.G., Ausich, W.I. (Eds.), Treatise on Invertebrate Paleontology, Part T, Echinodermata 2 Revised, Crinoidea, vol. 3. University of Kansas Press, Lawrence, Kansas. 42–69.
167112
Hess H.
2011
Isocrinida
In: Hess, H., Messing, C.G., Ausich, W.I. (Eds.), Treatise on Invertebrate Paleontology, Part T, Echinodermata 2 Revised, Crinoidea, vol. 3. University of Kansas Press, Lawrence, Kansas
42–69
Publication
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2013-03-29 22:54:20Z
created

Checked: verified by a taxonomic editorCainocrinidae Simms, 1988 (basis of record)
Checked: verified by a taxonomic editorCenocrinus Thomson, 1864 (basis of record)
Checked: verified by a taxonomic editorCenocrinus asterius (Linnaeus, 1767) (additional source)
Checked: verified by a taxonomic editorDiplocrininae Roux, 1981 (basis of record)
Checked: verified by a taxonomic editorIsocrinida (basis of record)
Checked: verified by a taxonomic editorIsocrinina (basis of record)
Checked: verified by a taxonomic editorIsocrinus von Meyer in Agassiz, 1836 † (basis of record)
Checked: verified by a taxonomic editorIsocrinus (Chladocrinus) (Agassiz, 1836) † (basis of record)
Checked: verified by a taxonomic editorIsocrinus (Isocrinus) von Meyer in Agassiz, 1836 † (basis of record)
Checked: verified by a taxonomic editorIsselicrinidae Klikushkin, 1977 (basis of record)
Checked: verified by a taxonomic editorMetacrininae Klikushkin, 1977 (basis of record)
Checked: verified by a taxonomic editorSaracrinus AH Clark, 1923 (basis of record)
Checked: verified by a taxonomic editor Diagnosis

Isocrinus with straight cryptosyzygy between secundibrachials 3-4. Internodes long, with as many as 20 columnals. [details]

Checked: verified by a taxonomic editor Diagnosis
 for Checked: verified by a taxonomic editorIsocrinida

Articulata with cup cryptodicyclic, wider than high, low cone- or bowl-shaped; radial cavity wide, cup elements not ... [details]

Checked: verified by a taxonomic editor Diagnosis

Cainocrinidae with arms divided at primibrachial 2 and further divided at variable intervals of 1-6 brachials. ... [details]

Checked: verified by a taxonomic editor Diagnosis

Diplocrininae with bowl-shaped cup. Basals rather small, separated on surface of cup. Arms divided at primibrachial ... [details]

Checked: verified by a taxonomic editor Diagnosis
 for Checked: verified by a taxonomic editorIsocrinina

Isocrinida with arms long, slender, branching mostly isotomous. Facets of brachials with well-developed muscle ... [details]

Checked: verified by a taxonomic editor Diagnosis

Isocrinida with arms long, slender; branching mostly isotomous. Facets of brachials with well-developed muscle ... [details]

Checked: verified by a taxonomic editor Diagnosis

Isocrinidae with base of crown conical, commonly more than 10 arms. Secundibrachials 3-4 united by symmorphy in ... [details]

Checked: verified by a taxonomic editor Diagnosis

Isocrinina with cryptosyzygy between primibrachials 1-2 and secundibrachials 1-2; in Metacrininae muscular ... [details]

Checked: verified by a taxonomic editor Diagnosis

Isocrininae with 10 arms. Symmorphy between secundibrachials 3 and 4 and more distally. [details]

Checked: verified by a taxonomic editor Diagnosis

Isselicrinidae with brachitaxes typically with fewer than 5 brachials beyond secundaxil (more in Cenocrinus). ... [details]

Checked: verified by a taxonomic editor Diagnosis

Metacrininae with typically 4 primibrachials (range 3-6); only primibrachials 1-2 united by cryptosyzygy. [details]

Checked: verified by a taxonomic editor Diagnosis

Same as genus. [details]

Checked: verified by a taxonomic editor Taxonomy
 for Checked: verified by a taxonomic editorIsocrinida

"Subdividing the Isocrinida has been highly controversial. Bourseau and Roux (1989) and Bourseau and others (1991) ... [details]

Checked: verified by a taxonomic editor Taxonomy

See taxonomic note under Isocrinida. [details]