Paraphyly of the annelids: All annelids are not segmented worms
Trapido-Rosenthal, H. G.; Kuffner, I. B.; McDowell, L.
German National Library of Science and Technology (GetInfo) (German)
Monoplacophorans and the Origin and Relationships of Mollusks
Invertebrate diversity in newly established mulch habitats in a Midwestern urban landscape
Jordan, Kyle; Jones, Susan
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