Urbilaterian

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1	PDF Document Add to Reading List Source URL: cima.uprm.edu Language: English - Date: 2006-02-16 11:56:50 Ecdysozoa Cambrian explosion Urbilaterian Hox gene Nemertea Bilateria Lari Lophotrochozoa Nematode Biology Zoology Animals
2	PDF Document Add to Reading List Source URL: bill.srnr.arizona.edu Language: English - Date: 2007-12-19 00:17:09 Historical geology Fossils Animals Cambrian Ediacaran biota Cambrian explosion Urbilaterian Ediacara biota Kimberella Biology Geologic time scale Paleontology
3	PDF Document Add to Reading List Source URL: arxiv.org Language: English - Date: 2008-11-13 13:19:09 Phyla Animals Deuterostome Chordate Bilateria Urbilaterian Hemichordata Protostome Phoronid Zoology Biology Taxonomy