Rhachitomi
plural noun
Rha·chit·o·mi
rəˈkitəˌmī,
raˈk-
: an order of Labyrinthodontia including most of the larger Permian amphibians and comprising forms having rhachitomous vertebrae, relatively stocky salamandriform bodies, and in some cases external gills
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“Rhachitomi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Rhachitomi. Accessed 22 Nov. 2024.
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