PaleoDB taxon number: 36800
Full reference: R. Kellogg. 1955. Three Miocene porpoises from the Calvert Cliffs, Maryland. Proceedings of the United States National Museum 105(3354):101-154
Parent taxon: Odontoceti according to M. D. Uhen et al. 2008
Sister taxa: Acrodelphinidae, Agorophiidae, Agorophioidea, Agriocetus, Argyrocetus, Ashleycetidae, Atropatenocetus, Balaenodon, Belosphys, Cetophis, Champsodelphis, Chilcacetus, Colophonodon, Delphinapterus orcinus, Delphinida, Delphinoceti, Delphinodon mento, Delphinopsis, Delphinorhynchus, Delphinus restitutensis, Delphinus vanzelleri, Dinoziphius, Ediscetus, Eurhinodelphinida, Eurhinodelphis minoensis, Eurhinodelphis sassariensis, Graamocetus, Graphiodon, Helvicetus, Helvicetus rugosus, Hesperocetus, Hesperoinia, Homaeocetus, Homocetus villersii, Hyperoodontoidea, Imerodelphis, Inticetidae, Ixacanthus, Kharthlidelphis, Lonchodelphis, Macrochirifer, Macrodelphinus, Microcetus, Microzeuglodon, Miokogia, Miotursiops, Mirocetidae, Monodon spurius, Monodontoidea, Nannolithax, Neosqualodon, Oedolithax, Oligodelphis, Oligosqualodon, Olympicetus, Palaeoziphius, Pandelphinida, Panphyseteroidea, Parapontoporiidae, Parasqualodon, Patriocetidae, Phoca debilis, Phoca rugosidens, Phocaenopsis, Phococetus, Physeteroidea, Physetodon, Platanistida, Platanistoidea, Platydelphis, Pontivaga, Priscodelphinus, Priscodelphinus teres, Priscophyseter, Prolipotes, Prophyseter, Prosqualodon, Proterocetus, Rhabdosteoidea, Rhabdosteus, Rhabodosteus, Sachalinocetus, Saurocetus, Scaptodon, Scaptodon lodderi, Simocetidae, Squaloceti, Squalodelphis pusillus, Squalodon (Microzeuglodon) wingei, Squalodon crassus, Squalodon kelloggi, Squalodon pelagius, Squalodon wymanii, Squalodontoidea, Squaloziphiidae, Stereodelphis, Sulakocetus, Synrhina, Tretosphys, Tretosphys uraeus, Uncamentodon, Xenorophidae, Zignodelphinidae, Ziphioidea, Susoidea
Subtaxa: Pelodelphis gracilis
Type: Pelodelphis gracilis
Ecology: scansorial insectivore