PaleoDB taxon number: 360135
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. Bisconti et al. 2019
Sister taxa: Aetiocetidae, Aetiocetoidea, Amphitera, Aulocetus calaritanus, Aulocetus lovisati, Balaena cortesii, Borealodon, Burtinopsis, Cetotheriomorphus, Coronodon, Crenaticeti, Eschrichtioidea, Eschrichtius expansus, Eschrichtius leptocentrus, Eschrichtius pusillus, Horopeta, Llanocetidae, Maiabalaena, Mammalodontidae, Mauicetus brevicollis, Mesoteras, Mesoteras kerrianus, Metasqualodon, Mioceta, Mystacodontidae, Probalaena, Pterobalaenidae, Rhegnopsis, Siphonocetus, Taikicetus, Toipahautea, Tretulias, Tretulias buccatus, Ulias
Subtaxa: Balaenidae, Balaenomorpha, Cetotheriidae, Cetotheriopsidae, Cetotheriopsis, Cetotherium incertum, Cetotherium klinderi, Cetotherium pusillum, Eomysticetidae, Eomysticetoidea, Halicetus, Megapteropsis, Piscocetus, Plicogulae, Sitsqwayk, Thalassotherii, Tlaxcallicetus, Whakakai