PBDB Taxon

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Diaphorocetus

Mammalia - Cetacea - Physeteridae

Taxonomy

Diaphorocetus was named by Ameghino (1894) [Sepkoski's age data: T Mi-l].

It was synonymized subjectively with Hypocetus by Hay (1902).

It was assigned to Pontoplanodidae by Ameghino (1894); to Physeterinae by Trouessart (1898), Trouessart (1904); to Cetacea by Sepkoski (2002); to Physeterida by Bianucci and Landini (2007); to Hoplocetinae by Simpson (1945), Muizon (1990), McKenna and Bell (1997), Fordyce and de Muizon (2001), Hampe (2006), Toscano et al. (2013); to Physeteridae by Ameghino (1901), Allen (1921), Kellogg (1928), Romero-Herrera et al. (1973), Carroll (1988), Benton (1993), Cozzuol (1996), Kazár (2002), Collareta et al. (2017); to Panphyseteroidea by Berta (2017); and to Physeteroidea by Lambert et al. (2008), Perez et al. (2011), Marx et al. (2016), Paolucci et al. (2020), Lambert et al. (2023).

Species

D. ortegai, D. poucheti

Synonyms

Paracetus was named by Lydekker (1894) [Lydekker (1894) names a new taxon Hypocetus on p. 7, and then another new genus, Paracetus on p. 8 for the same taxon, Mesocetus poucheti.].

It was synonymized subjectively with Hypocetus by Hay (1902); it was synonymized subjectively with Diaphorocetus by Trouessart (1898), McKenna and Bell (1997), Kazár (2002).

It was assigned to Physodontidae by Lydekker (1894); and to Physeteridae by Cope (1895), Palmer (1904).
Hypocetus was named by Lydekker (1894).

It was synonymized subjectively with Diaphorocetus by Trouessart (1898), McKenna and Bell (1997), Kazár (2002).

It was assigned to Physodontidae by Lydekker (1894); to Physeterinae by Hay (1902); and to Physeteridae by Case (1904).
Mesocetus was named by Moreno (1892).

It was synonymized subjectively with Hypocetus by Lydekker (1894); it was synonymized subjectively with Diaphorocetus by Trouessart (1898), Hay (1902), Palmer (1904), Simpson (1945), McKenna and Bell (1997).

Synonymy list

Year	Name and author
1892	Mesocetus Moreno p. 395 figs. Plate 10
1894	Diaphorocetus Ameghino p. 437
1894	Hypocetus Lydekker p. 7
1894	Paracetus Lydekker p. 8
1895	Paracetus Cope p. 135
1898	Diaphorocetus Trouessart p. 1052
1901	Diaphorocetus Ameghino p. 80
1902	Hypocetus Hay p. 596
1904	Hypocetus Case p. 30
1904	Paracetus Palmer p. 511
1904	Diaphorocetus Trouessart p. 772
1921	Diaphorocetus Allen p. 154
1928	Diaphorocetus Kellogg p. 34 figs. Table 1
1945	Diaphorocetus Simpson p. 102
1973	Diaphorocetus Romero-Herrera et al. p. 391
1988	Diaphorocetus Carroll
1990	Diaphorocetus Muizon p. 298
1993	Diaphorocetus Benton p. 761
1996	Diaphorocetus Cozzuol p. 324
1997	Diaphorocetus McKenna and Bell p. 379
2001	Diaphorocetus Fordyce and de Muizon p. 179
2002	Diaphorocetus Kazár p. 163
2002	Diaphorocetus Sepkoski
2006	Diaphorocetus Hampe p. 65
2007	Diaphorocetus Bianucci and Landini p. 45 figs. Table 2.1
2008	Diaphorocetus Lambert et al. p. 367 figs. Fig. 3
2011	Diaphorocetus Perez et al. p. 648
2013	Diaphorocetus Toscano et al. p. 440
2016	Diaphorocetus Marx et al. p. 122
2017	Diaphorocetus Berta p. 160
2017	Diaphorocetus Collareta et al. p. 269 figs. Figure 6
2020	Diaphorocetus Paolucci et al. p. 338
2023	Diaphorocetus Lambert et al. p. 662

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
subclass	Synapsida
—	Therapsida	()
infraorder	Cynodontia	()
—	Mammaliamorpha
—	Mammaliaformes

Rank	Name	Author
class	Mammalia
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Boreoeutheria
—	Laurasiatheria
—	Scrotifera
—	Euungulata
—	Artiodactylamorpha
—	Artiodactyla	()
—	Whippomorpha
order	Cetacea
—	Pelagiceti
—	Neoceti
suborder	Odontoceti
superfamily	Physeteroidea
family	Physeteridae
genus	Diaphorocetus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Diaphorocetus Ameghino 1894

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†Diaphorocetus ortegai Lambert et al. 2023

†Diaphorocetus poucheti Moreno 1892

Invalid names: Hypocetus Lydekker 1894 [objective synonym], Mesocetus Moreno 1892 [synonym], Paracetus Lydekker 1894 [objective synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

hydroxyapatitesubo

Form:

roller-shapedo

Ontogeny:

modification of partso

Environment:

marine, freshwatersubo

Locomotion:

actively mobileo

Life habit:

aquatico

Depth habitat:

surfaceo

Diet:

piscivoref

Diet 2:

carnivoref

Reproduction:

viviparoussubo

Created:

2005-06-08 10:11:09

Modified:

2005-06-08 12:11:09

Source: f = family, subo = suborder, o = order

References: Uhen 2004, Nowak 1991

Age range: Burdigalian or 20.45000 to 15.98000 Ma

Collections (3 total)

Time interval	Ma	Country or state	Original ID and collection number
Burdigalian	20.45 - 15.98	Peru	D. ortegai (124919) D. sp. (167732)
Burdigalian	20.45 - 15.98	Argentina (Chubut)	Mesocetus poucheti (45885)