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Phrynocrinidae ( anglais )

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Phrynocrinidae is a family of echinoderms belonging to the order Millericrinida.[1]

Genera:[1]

References

  1. ^ a b "Phrynocrinidae". www.gbif.org. Retrieved 14 June 2021.
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Phrynocrinidae: Brief Summary ( anglais )

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Phrynocrinidae is a family of echinoderms belonging to the order Millericrinida.

Genera:

Phrynocrinus Clark, 1907 Porphyrocrinus Gislén, 1925
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Diagnosis ( anglais )

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Bourgueticrinina with arms diverging from their base, divided at primibrachial 2 or distally; undivided in Porphyrocrininae. Nonmuscular articulations between primibrachials 1 and 2 and more distally at variable (usually 3 or 4) intervals. First pinnule on brachial 8-10. No proximale. Proximal columnals low, 1-2 uppermost discoidal in adults. Columnals stout, as wide as base of cup, circular to elliptical in section, all joined by synarthry. Fixation by irregular terminal disk.

Référence

5. Haggett, G. M. (2000) The early stages of Coleophora tricolor Walsingham 1899 (Lep. Coleophoridae) on the Norfolk Breck and their significance for conservation management. Entomologist's Gazette 51: 215-234.

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Charles Messing [email]