PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Didolodus

Mammalia - Panameriungulata - Didolodontidae

Taxonomy

Didolodus was named by Ameghino (1897). Its type is Didolodus multicuspis. It is the type genus of Didolodontoidea.

It was assigned to Phenacodontidae by Ameghino (1897); to Didolodidae by Scott (1913); and to Didolodontidae by Simpson (1948), Paula Couto (1952), Simpson (1967), Simpson (1970), Cifelli (1983), Carroll (1988), Gelfo (2007) and Gelfo (2010).

Species

D. magnus, D. minor, D. multicuspis (syn. D. colligatus, Lonchoconus lanceolatus, D. crassicuspis, D. dispar, Argyrolambda conidens, Nephacodus latigonus, Argyrolambda conulifera) (type species)

Synonyms

Lonchoconus was named by Ameghino (1901).

It was synonymized subjectively with Didolodus by Simpson (1948) and Gelfo (2010).

It was assigned to Phenacodontidae by Ameghino (1901).
Nephacodus was named by Ameghino (1902).

It was synonymized subjectively with Didolodus by Simpson (1948) and Gelfo (2010).

It was assigned to Phenacodontidae by Ameghino (1902).
Cephanodus was named by Ameghino (1902). Its type is Didolodus colligatus.

It was synonymized subjectively with Didolodus by Simpson (1948) and Gelfo (2010).

Synonymy list

Year	Name and author
1897	Didolodus Ameghino p. 437
1901	Lonchoconus Ameghino p. 383
1902	Cephanodus Ameghino
1902	Nephacodus Ameghino p. 19
1913	Didolodus Scott p. 489
1948	Didolodus Simpson
1952	Didolodus Paula Couto
1967	Didolodus Simpson
1970	Didolodus Simpson
1983	Didolodus Cifelli
1988	Didolodus Carroll
2007	Didolodus Gelfo
2010	Didolodus Gelfo

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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	()

Rank	Name	Author
—	Mammaliamorpha
—	Mammaliaformes
class	Mammalia
—	Theriamorpha	(Rowe 1993)
—	Theriiformes	()
—	Trechnotheria
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Boreoeutheria
—	Laurasiatheria
—	Scrotifera
—	Euungulata
—	Panperissodactyla
order	Panameriungulata
family	Didolodontidae
genus	Didolodus

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. †Didolodus Ameghino 1897

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†Didolodus magnus Gelfo 2010

†Didolodus minor Simpson 1948

†Didolodus multicuspis Ameghino 1897

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Invalid names: Argyrolambda conidens Ameghino 1904 [synonym], Argyrolambda conulifera Ameghino 1904 [synonym], Didolodus colligatus Ameghino 1902 [synonym], Didolodus crassicuspis Ameghino 1901 [synonym], Didolodus dispar Ameghino 1904 [synonym], Lonchoconus lanceolatus Ameghino 1901 [synonym], Nephacodus latigonus Ameghino 1902 [synonym]

Invalid names: Cephanodus Ameghino 1902 [synonym], Lonchoconus Ameghino 1901 [synonym], Nephacodus Ameghino 1902 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

terrestrialsubc

Locomotion:

actively mobilec

Life habit:

scansorialsubc

Diet:

insectivoresubc

Reproduction:

viviparoussubc

Created:

2005-09-06 20:43:42

Modified:

2005-09-06 22:44:32

Source: subc = subclass, c = class, subp = subphylum

References: Lillegraven 1979, Ji et al. 2002, Hendy et al. 2009, Carroll 1988

Age range: base of the Casamayoran to the top of the Early/Lower Oligocene or 56.00000 to 28.40000 Ma

Collections (12 total)

Time interval	Ma	Country or state	Original ID and collection number
Casamayoran	56.0 - 48.0	Argentina (Chubut)	D. multicuspis, D. crassicuspis, D. dispar, Argyrolambda conidens (176285) D. sp. (176304) D. sp., D. multicuspis (175743)
Lutetian	47.8 - 41.3	Argentina (Chubut)	D. minor (176170) D. sp., D. minor (44956)
Lutetian - Bartonian	47.8 - 38.0	Argentina (Chubut)	D. multicuspis, Nephacodus latigonus (176164)
Bartonian	41.3 - 38.0	Argentina (Santa Cruz)	D. multicuspis (176494)
Bartonian	41.3 - 38.0	Argentina (Chubut)	D. magnus (176189) D. multicuspis (176180 176186) D. multicuspis, Lonchoconus lanceolatus, D. colligatus, D. minor (13779)
Early/Lower Oligocene	33.9 - 28.4	Peru	D. sp. (199563)