Members of this order are characterised by having a "heteromorphic" stalk; the stalk consists of a series of nodes with cirri, interspersed by several nodes without cirri. There are additionally a whorl of cirri at the base on which the animal perches. The calyx is a shallow cup consisting of five basals and five radials.[1]
isocrinida, order, lilies, which, contains, four, extant, families, temporal, range, anisian, recent, preꞒ, isocrinus, nicoleti, columnals, middle, jurassic, carmel, formation, utah, scientific, classification, domain, eukaryota, kingdom, animalia, phylum, ech. Isocrinida is an order of sea lilies which contains four extant families IsocrinidaTemporal range Anisian to Recent PreꞒ Ꞓ O S D C P T J K Pg N Isocrinus nicoleti columnals Middle Jurassic Carmel Formation Utah Scientific classification Domain Eukaryota Kingdom Animalia Phylum Echinodermata Class Crinoidea Subclass Articulata Order IsocrinidaCharacteristics editMembers of this order are characterised by having a heteromorphic stalk the stalk consists of a series of nodes with cirri interspersed by several nodes without cirri There are additionally a whorl of cirri at the base on which the animal perches The calyx is a shallow cup consisting of five basals and five radials 1 Families editSuborder Isocrinina Sieverts Doreck 1952 family Cainocrinidae Simms 1988 1 genus 1 species family Isocrinidae Gislen 1924 3 genus 3 species family Isselicrinidae Klikushkin 1977 4 genus 18 species family Proisocrinidae Rasmussen 1978 1 genus 1 species Suborder Pentacrinitina Gray 1842 family Pentacrinitidae Gray 1842 nbsp Neocrinus decorus Isocrinidae nbsp Metacrinus rotundus Isselicrinidae nbsp Proisocrinus ruberrimus Proisocrinidae nbsp Endoxocrinus sp nbsp Endoxocrinus parrae nbsp Isocrinus asteria nbsp Isocrinus fossil Shamshak Formation Alborz Province IranReferences edit O Hara Timothy Byrne Maria 2017 Australian Echinoderms Biology Ecology and Evolution Csiro Publishing p 192 ISBN 978 1 4863 0763 0 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 pp 42 69 nbsp This article about a crinoid is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Isocrinida amp oldid 1181770718, wikipedia, wiki, book, books, library,