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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Date
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2013-03-29 22:54:20Z
created
Messing, Charles

Cainocrinidae Simms, 1988 (basis of record)
Cenocrinus Thomson, 1864 (basis of record)
Cenocrinus asterius (Linnaeus, 1767) (additional source)
Diplocrininae Roux, 1981 (basis of record)
Isocrinida (basis of record)
Isocrinina accepted as Isocrinida (basis of record)
Isocrinus von Meyer in Agassiz, 1836 † (basis of record)
Isocrinus (Chladocrinus) (Agassiz, 1836) † (basis of record)
Isocrinus (Isocrinus) von Meyer in Agassiz, 1836 † (basis of record)
Isselicrinidae Klikushin, 1977 accepted as Isselicrininae Klikushin, 1977 (basis of record)
Metacrininae Klikushin, 1977 (basis of record)
Saracrinus A. H. Clark, 1923 (basis of record)
 Diagnosis
 for Cenocrinus Thomson, 1864

Diplocrininae with bowl-shaped cup. Basals rather small, separated on surface of cup. Arms divided at primibrachial ... [details]
 Diagnosis
 for Cenocrinus asterius (Linnaeus, 1767)

Same as genus. [details]
 Diagnosis
 for Diplocrininae Roux, 1981

Isselicrinidae with brachitaxes typically with fewer than 5 brachials beyond secundaxil (more in Cenocrinus). ... [details]
 Diagnosis
 for Hypalocrinus AH Clark, 1908

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

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

Isocrinida with arms long, slender, branching mostly isotomous. Facets of brachials with well-developed muscle ... [details]
 Diagnosis
 for Isocrininae Gislén, 1924 †

Isocrinida with arms long, slender; branching mostly isotomous. Facets of brachials with well-developed muscle ... [details]
 Diagnosis
 for Isocrinus (Chladocrinus) (Agassiz, 1836) †

Isocrinus with straight cryptosyzygy between secundibrachials 3-4. Internodes long, with as many as 20 columnals. [details]
 Diagnosis
 for Isselicrinidae Klikushin, 1977

Isocrinina with cryptosyzygy between primibrachials 1-2 and secundibrachials 1-2; in Metacrininae muscular ... [details]
 Diagnosis
 for Neocrinus Thomson, 1864

Isocrinidae with base of crown conical, 10 arms in N. naresianus or more than 10 arms in N. blakei and N. ... [details]
 Diagnosis
 for Saracrinus A. H. Clark, 1923

Metacrininae with typically 4 primibrachials (range 3-6); only primibrachials 1-2 united by cryptosyzygy. [details]
 Diagnosis
 for Teliocrinus Döderlein, 1912

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

"Subdividing the Isocrinida has been highly controversial. Bourseau and Roux (1989) and Bourseau and others (1991) ... [details]
 Taxonomy
 for Pentacrinidae d'Orbigny, 1852 †

See taxonomic note under Isocrinida. [details]

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