I found a study about Chaetognath that places them as the sister group to the rest of Prodtostomes ================================================ Metadata | Do not edit below this line :------------|:---------- Author | Danielle Wilson Upvotes | 0 URL | [/contact](https://tree.opentreeoflife.org/contact) Target node label | Synthetic tree id | Synthetic tree node id | Source tree id(s) | Open Tree Taxonomy id | Supporting reference | https://bmcevolbiol.biomedcentral.com/articles/10.1186/1471-2148-8-251
I found a study about Chaetognath that places them as the sister group to the rest of Prodtostomes
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