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Cynthiacetus ✝

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	Not linked to a GBIF record.
PaleoBioDB ID (PBDB)	63143	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=63143

Rank

genus (PBDB)

Taxonomy (PBDB)

Life : Animalia : Chordata : Mammalia : Cetacea : Basilosauridae : Cynthiacetus

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Triploblastica	Lankester 1877
-	Nephrozoa	Jondelius et al. 2002
-	Deuterostomia	Grobben 1908
phylum	Chordata	Haeckel 1847
subphylum	Vertebrata	Lamarck 1801
superclass	Gnathostomata	Gegenbauer 1874
-	Osteichthyes
-	Sarcopterygii	Romer 1955
subclass	Dipnotetrapodomorpha
subclass	Tetrapodomorpha
-	Tetrapoda
-	Reptiliomorpha	Säve-Söderbergh 1934
-	Anthracosauria	Säve-Söderbergh 1934
-	Batrachosauria
-	Cotylosauria
-	Amniota	Haeckel 1866
-	Synapsida	Osborn 1903
-	Therapsida
infraorder	Cynodontia
-	Epicynodontia	Hopson and Kitching 2001
infraorder	Eucynodontia	Kemp 1982
-	Probainognathia	Hopson 1990
-	Mammaliamorpha	Rowe 1988
-	Mammaliaformes	Rowe 1988
class	Mammalia	Linnaeus 1758
order	Cetacea	Brisson 1762
-	Pelagiceti	Uhen 2008
family	Basilosauridae	Cope 1867
genus	Cynthiacetus	Uhen 2005

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Cynthiacetus	genus	belongs to Dorudontinae	stated without evidence	Uhen, 2005
Cynthiacetus	genus	belongs to Basilosauridae	stated without evidence	Martinez-Cáceres and Muizon, 2011
Cynthiacetus	genus	belongs to Dorudontinae	stated without evidence	Schouten, 2011
Cynthiacetus	genus	belongs to Basilosauridae	stated without evidence	Uhen, 2013
Cynthiacetus	genus	belongs to Dorudontinae	implied	Gao and Ni, 2015
Cynthiacetus	genus	subjective synonym of Pontogeneus	stated without evidence	Gingerich, 2015
Cynthiacetus	genus	belongs to Basilosauridae	stated with evidence	Marx et al., 2016
Cynthiacetus	genus	belongs to Basilosauridae	stated without evidence	Berta, 2017
Cynthiacetus	genus	belongs to Basilosauridae	stated with evidence	Uhen, 2018

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

41.3 - 38.0 Ma
Eocene

Last Recorded Appearance

38.0 - 33.9 Ma
Paleogene

Environment

marine (based on Cetacea)

Motility

actively mobile (based on Cetacea)

Diet

carnivore (based on Cetacea)

Reproduction

viviparous (based on Cetacea)

Ontogeny

modification of parts (based on Cetacea)

Taphonomy

hydroxylapatite (based on Cetacea)

Primary Reference (PBDB)

M. D. Uhen. 2005. A new genus and species of archaeocete whale from Mississippi. Southeastern Geology 43(3):157-172

Fossil Distribution

Subtaxa

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Cynthiacetus maxwelli ✝ species	accepted (GBIF) listed (PBDB)		10	41.3 Ma Eocene	38.0 Ma Eocene
Cynthiacetus peruvianus ✝ species	accepted (GBIF) listed (PBDB)		1	38.0 Ma Eocene	38.0 Ma Eocene

Synonymy List

Year	Name and Author
2005	Cynthiacetus Uhen p. 159 figs. 1-7
2008	Cynthiacetus McLeod and Barnes p. 94
2008	Cynthiacetus Uhen p. 561
2009	Cynthiacetus Uhen p. 93
2011	Cynthiacetus Martinez-Cáceres and Muizon
2011	Cynthiacetus Schouten p. 18

Year	Name and Author
2013	Cynthiacetus Uhen p. 9 figs. Figure 6
2015	Cynthiacetus Gao and Ni p. 156 figs. Table 1
2016	Cynthiacetus Marx et al. p. 101
2017	Cynthiacetus Berta p. 159
2017	Cynthiacetus Martínez-Cáceres et al. p. 11
2018	Cynthiacetus Uhen

References

Uhen M. D. (2005) A new genus and species of archaeocete whale from Mississippi, Southeastern Geology 43 3, 157-172

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

Martinez-Cáceres M., Muizon C. (2011) A new basilosaurid (Cetacea, Pelagiceti) from the Late Eocene to Early Oligocene Otuma Formation of Peru, Comptes Rendus Palevol 10, 517-526 doi:0.1016/j.crpv.2011.03.006

Schouten S. (2011) De wervels van Basilosauridae: een overzicht van en een vergelijking met raadselachtige vondsten uit de Noordzee, Cranium 28 2, 17-25

Uhen M. D. (2013) A review of North American Basilosauridae, Alabama Museum of Natural History Bulletin 31 2, 1-45

Marx F. G., Lambert O., et al (2016) Cetacean Paleobiology, 1-319

Berta A. (2017) , The Rise of Marine Mammals: 50 Million Years of Evolution, 1-198

Martínez-Cáceres M., Lambert O., et al (2017) The anatomy and phylogenetic affinities of Cynthiacetus peruvianus, a large Dorudon-like basilosaurid (Cetacea, Mammalia) from the late Eocene of Peru, Geodiversitas 39 1, 1-163 doi:10.5252/g2017n1a1

Uhen M. D. (2018) Basilosaurids and Kekenodontids, Encyclopedia of Marine Mammals, 3rd Edition, 78-80

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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