The origins of graptolites and other pterobranchs: a journey from 'Polyzoa'
The graptolites, known only from fossils, have been convincingly allied to the pterobranch hemichordates, a group of tiny, mostly colonial marine invertebrates bearing feeding arms. The phylogenetic position of pterobranchs has been subject to debate and revision for over a century. Their colonial l...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2008
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