priapulids
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Palaeoscolecid — Temporal range: Upper Early Cambrian–Silurian[1] … Wikipedia
Arthropod — Temporal range: 540–0 Ma … Wikipedia
priapulid — ▪ invertebrate (phylum Priapulida), any of some 15 species of predatory, marine, mud inhabiting, unsegmented worms. Once considered a class of the former phylum Aschelminthes or placed with echiuran and sipunculan worms in the former phylum … Universalium
Ottoia — Temporal range: Burgess shale … Wikipedia
Scalidophora — Приапулида Priapulus caudatus … Википедия
Crossback stingaree — Conservation status Least Concern ( … Wikipedia
Nemertea — For the Romanian village that bears this name, see Gura Teghii. Nemertea … Wikipedia
Anomalocarid — Taxobox image caption = Artist s reconstruction of an anomalocarid hunting a trilobite. fossil range = fossil range|Chengjiang|Burgess shale superregnum = Eukarya regnum = Animalia subregnum = Eumetazoa superphylum = Protostomia phylum =… … Wikipedia
Markuelia — Temporal range: Early Cambrian–Early Ordovician[1] … Wikipedia
Dinocaridida — Temporal range: Cambrian–Lower Devonian … Wikipedia
