Mammalia - Cetacea

Full reference: E. D. Mitchell. 1989. A new cetacean from the late Eocene La Meseta Formation, Seymour Island, Antarctic Peninsula. Canadian Journal of Fisheries and Aquatic Sciences 46(12):2219-2235

Parent taxon: Mysticeti according to M. D. Uhen 2015

Sister taxa: Aetiocetidae, Aetiocetoidea, Balaenoptera cortesii portisii, Cetotherioidea, Cetotheriopsis, Chaeomysticeti, Eomysticetidae, Mammalodontidae, Mauicetus, Physalidae, Pterobalaenidae

Subtaxa: Llanocetus

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Ecology: aquatic carnivore-suspension feeder