annelids
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annelids — n.; n. pl. [L. annulus, ring; Gr. eidos, form] A phylum of segmented or cylindrical ringed worms, encompassing the Polychaeta, mainly free living and marine, the Oligochaeta, mainly free living, either terrestrial (earthworms), fresh water, or… … Dictionary of invertebrate zoology
annelids — n. type of segmented worm … English contemporary dictionary
ANNELIDS — … Useful english dictionary
List of prehistoric annelids — This list of prehistoric annelids is an attempt to create a comprehensive listing of all genera that have ever been included in Annelida which have been found preserved as fossils. This list excludes purely vernacular terms. It includes all… … Wikipedia
Annelid — Temporal range: Early Ordovician–Recent[1] … Wikipedia
annelid — /an l id/, n. 1. any segmented worm of the phylum Annelida, including the earthworms, leeches, and various marine forms. adj. 2. belonging or pertaining to the Annelida. Also, annelidan /euh nel i dn/. [1825 35; see ANNELIDA] * * * Any member of… … Universalium
Debate about Cambrian Lophotrochozoans — Since 1990 there has been intense debate among paleontologists about the evolution in the Early Cambrian period of the super phylum Lophotrochozoa, which is thought to include the modern molluscs, annelid worms and brachiopods, as well as their… … Wikipedia
Halkieria — Taxobox name = Halkieria fossil range = fossil range|533|511|Lower to Middle Cambrian image title = Halkieria evangelista from the Lower Cambrian Sirius Passet, North Greenland regnum = Animalia phylum = ?Mollusca unranked ordo = Halwaxiida… … Wikipedia
Wiwaxia — Taxobox fossil range = Early–Middle Cambrian regnum = Animalia superphylum = Lophotrochozoa phylum = incertae sedis unranked classis = Halwaxiida familia = Wiwaxiidae familia authority = Walcott, 1911 genus = Wiwaxia binomial = Wiwaxia corrugata… … Wikipedia
Halwaxiida — taxobox image caption= Halkieria regnum=Animalia fossil range=Early to Middle Cambrian superphylum=Lophotrochozoa phylum = See text Halwaxiida or halwaxiids is a proposed clade loosely uniting scale bearing Cambrian animals, which may lie in the… … Wikipedia
