The skull surface of Kotlassia, or lack thereof
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The holotype and only known skull of Ko. prima is horribly overprepared; I don't think the former presence of lateral-line grooves can be determined.
Bulanov VV. 2003. Evolution and systematics of seymouriamorph parareptiles. Paleontological Journal 37:S1–S105.
Thanks for alerting me of Bulanov (2002), by the way; that's a reference I had overlooked!
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