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Rodhocetus balochistanensis

Description

Rodhocetus (from Rodho, the geological anticline at the type locality, and cetus, Latin for whale) is an extinct genus of protocetid early whale known from the Lutetian (48.6 to 40.4 million years ago) of Pakistan. The best-known protocetid, Rodhocetus is known from two partial skeletons that taken together give a complete image of an Eocene whale that had short limbs with long hands and feet that were probably webbed and a sacrum that was immobile with four partially fused sacral vertebrae. It is one of several extinct whale genera that possess land mammal characteristics, thus demonstrating the evolutionary transition from land to sea.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4971339https://www.gbif.org/species/4971339
PaleoBioDB ID (PBDB)53318https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=53318
Rankspecies
Taxonomy (GBIF)Life : Animalia : Chordata : Mammalia : Cetacea : Protocetidae : Rodhocetus : Rodhocetus balochistanensis
Taxonomy (PBDB)Life : Animalia : Chordata : Mammalia : Cetacea : Protocetidae : Rodhocetus : Rodhocetus balochistanensis
Taxonomic Status (GBIF)accepted
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
familyProtocetidaeStromer 1908
genusRodhocetusGingerich et al. 1994
speciesRodhocetus balochistanensisGingerich et al. 2001
Generic NameRodhocetus
Scientific NameRodhocetus balochistanensis Gingerich et al., 2001
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Rodhocetus balochistanensisspeciesbelongs to Rodhocetusstated without evidenceGingerich et al., 2001
Status (PBDB)extinct
Taxon Size (PBDB)1
First Recorded Appearance47.8 - 41.3 Ma
Eocene
Last Recorded Appearance47.8 - 41.3 Ma
Eocene
Environmentmarine (based on Cetacea)
Motilityactively mobile (based on Cetacea)
Dietcarnivore (based on Cetacea)
Reproductionviviparous (based on Cetacea)
Ontogenymodification of parts (based on Cetacea)
Taphonomyhydroxylapatite (based on Cetacea)
Primary Reference (PBDB)P. D. Gingerich, M. Haq, and I. S. Zalmout, I. H. Khan, M. S. Malkani. 2001. Origin of whales from early artiodactyls: Hands and feet of Eocene Protocetidae from Pakistan. Science 293:2239-2242
Wikipediahttps://en.wikipedia.org/wiki/Rodhocetus_balochistanensis

Fossil Distribution

Synonymy List

YearName and Author
2001Rodhocetus balochistanensis Gingerich et al.
2004Rodhocetus balochistanensis van Vliet p. 143
2008Rodhocetus balochistanensis McLeod and Barnes p. 93
2012Rodhocetus balochistanensis Gingerich p. 313 figs. Figure 4

References

Gingerich P. D., Haq M., et al (2001) Origin of whales from early artiodactyls: Hands and feet of Eocene Protocetidae from Pakistan, Science 293, 2239-2242
van Vliet H. J. (2004) Wadi Hitan, het dal der walvissen over oerwalvissen in Egypte en de evolutie der walvissen, Grondboor & Hamer 6, 141-147
McLeod S. A., Barnes L. G. (2008) A new genus and species of Eocene protocetid archaeocete whale (Mammalia, Cetacea) from the Atlantic Coastal plain, Science Series, Natural History Museum of Los Angeles County 41, 73-98
Gingerich P. D. (2012) Evolution of whales from land to sea, Proceedings of the American Philosophical Society 156 3, 309-323
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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