Goedertius is distinguished from other allodelphinids by a depression on the posterior part of the rostrum, smaller nasal bones, wider
dorsal opening of mesorostral canal on posterior part of rostrum, and dorsal exposures of frontals at cranial vertex smaller.[1]
References
^Toshiyuki Kimura and Lawrence G. Barnes (2016). "New Miocene fossil Allodelphinidae (Cetacea, Odontoceti, Platanistoidea) from the North Pacific Ocean". Bulletin of the Gunma Museum of Natural History 20: 1–58.