Annulonemertes (phylum Nemertea): when segments do not count
We estimated the phylogenetic position of the pseudosegmented ribbon worm Annulonemertes minusculus to test proposed evolutionary hypotheses to explain these body constrictions. The analysis is based on 18S rDNA sequences and shows that the species belongs to an apomorphic clade of hoplonemertean sp...
Main Authors: | , |
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Format: | Online |
Language: | English |
Published: |
The Royal Society
2007
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Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1975765/ |