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Dilophodelphis

Description

Dilophodelphis is an extinct genus of river dolphin from Early Miocene (Burdigalian) marine deposits in Oregon. The type species, Dilophodelphis fordycei, was named in 2017.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)9351522https://www.gbif.org/species/9351522
PaleoBioDB ID (PBDB)354692https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=354692
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Mammalia : Cetacea : Dilophodelphis
Taxonomy (PBDB)Life : Animalia : Chordata : Mammalia : Cetacea : Platanistidae : Dilophodelphis
Taxonomic Status (GBIF)doubtful
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-TriploblasticaLankester 1877
-NephrozoaJondelius et al. 2002
-DeuterostomiaGrobben 1908
phylumChordataHaeckel 1847
subphylumVertebrataLamarck 1801
superclassGnathostomataGegenbauer 1874
-Osteichthyes
-SarcopterygiiRomer 1955
subclassDipnotetrapodomorpha
subclassTetrapodomorpha
-Tetrapoda
-ReptiliomorphaSäve-Söderbergh 1934
-AnthracosauriaSäve-Söderbergh 1934
-Batrachosauria
-Cotylosauria
-AmniotaHaeckel 1866
-SynapsidaOsborn 1903
-Therapsida
infraorderCynodontia
-EpicynodontiaHopson and Kitching 2001
infraorderEucynodontiaKemp 1982
-ProbainognathiaHopson 1990
-MammaliamorphaRowe 1988
-MammaliaformesRowe 1988
classMammaliaLinnaeus 1758
orderCetaceaBrisson 1762
-PelagicetiUhen 2008
-NeocetiFordyce and de Muizon 2001
suborderOdontocetiFlower 1867
superfamilyPlatanistoideaSimpson 1945
familyPlatanistidae
genusDilophodelphisBoersma McCurry & Pyenson 2017
Scientific NameDilophodelphis Boersma, McCurry & Pyenson, 2017
Name Published InBoersma, Alexandra T., Matthew R. McCurry & Nicholas D. Pyenson. 2017. A new fossil dolphin Dilophodelphis fordycei provides insight into the evolution of supraorbital crests in Platanistoidea (Mammalia, Cetacea). Royal Society Open Science.
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Dilophodelphisgenusbelongs to Platanistidaestated with evidenceBoersma et al., 2017
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance20.4 - 16.0 Ma
Miocene
Last Recorded Appearance20.4 - 16.0 Ma
Miocene
Environmentmarine,freshwater (based on Odontoceti)
Motilityactively mobile (based on Cetacea)
Dietpiscivore (based on Platanistidae)
Reproductionviviparous (based on Odontoceti)
Ontogenymodification of parts (based on Cetacea)
Taphonomyhydroxylapatite (based on Odontoceti)
Primary Reference (PBDB)A. T. Boersma, M. R. McCurry, and N. D. Pyenson. 2017. A new fossil dolphin Dilophodelphis fordycei provides insight into the evolution of supraorbital crests in Platanistoidea (Mammalia, Cetacea). Royal Society Open Science
Wikipediahttps://en.wikipedia.org/wiki/Dilophodelphis

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Dilophodelphis fordycei
species
accepted (GBIF)
listed (PBDB)
120.4 Ma
Miocene
20.4 Ma
Miocene

Synonymy List

YearName and Author
2017Dilophodelphis Boersma et al.
2018Dilophodelphis Kimura p. 4 figs. Fig. 4

References

Boersma A. T., McCurry M. R., et al (2017) A new fossil dolphin Dilophodelphis fordycei provides insight into the evolution of supraorbital crests in Platanistoidea (Mammalia, Cetacea), Royal Society Open Science doi:10.1098/rsos.170022
Kimura T. (2018) First squalodelphinid from the early Miocene of the Pacific realm in the Northern Hemisphere, Journal of Vertebrate Paleontology 38 4, e1493595 doi:10.1080/02724634.2018.1493595
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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