A CLADISTIC ANALYSIS OF THE PHYLA OF THE ANIMAL KINGDOM BY NIELSEN (2001)
| This figure is from Nielsen (2001) and is based on an analysis of 63 morphological and developmental characters. The lophophorates are split into two groups (the Phoronida and Brachiopoda are in the deuterostome clade), and the chaetognaths are in the protostomes. |
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