PBDB Taxon

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

Megadolodinae

Mammalia - Panameriungulata - Proterotheriidae

Taxonomy

Megadolodinae was named by Cifelli and Villarroel (1997).

It was assigned to Proterotheriidae by Cifelli and Villarroel (1997).

Subtaxa

Bounodus, Megadolodus

Synonymy list

Year	Name and author
1997	Megadolodinae Cifelli and Villarroel

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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
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Boreoeutheria
—	Laurasiatheria
—	Scrotifera
—	Euungulata
—	Panperissodactyla
order	Panameriungulata
suborder	Litopterna	(Ameghino 1889)
family	Proterotheriidae	Ameghino 1887
subfamily	Megadolodinae
subfamily	Megadolodinae

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.

Subfm. †Megadolodinae Cifelli and Villarroel 1997

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G. †Bounodus Carlini et al. 2006

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†Bounodus enigmaticus Carlini et al. 2006

G. †Megadolodus McKenna 1956

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†Megadolodus molariformis McKenna 1956

Diagnosis

Reference	Diagnosis
R. L. Cifelli and C. Villarroel 1997	Distinct from all other Proterotheriidae in having upper and lower canines developed into tusks and large hypocone present on M3. Limbs differ from Proterotheriidae for which the skeleton is known in being more robust and in having relatively shorter distal elements (tibia, metatarsals, first phalanges). Check teeth differ from those of other proterotheriids in being relatively larger.

Measurements

No measurements are available

Composition:

phosphaticsubp

Maximum body mass:

80 kgg

Minimum body mass:

60 kgg

Environment:

terrestrialsubc

Locomotion:

actively mobilec

Life habit:

scansorialsubc

Diet:

herbivoreo

Reproduction:

viviparoussubc

Created:

2009-01-05 17:11:35

Modified:

2009-01-05 19:11:35

Source: g = genus, o = order, subc = subclass, c = class, subp = subphylum

References: Carroll 1988, MacFadden et al. 1996, Hendy et al. 2009, Lillegraven 1979, Ji et al. 2002, Cifelli and Villarroel 1997

Age range: Laventan or 13.80000 to 11.00000 Ma

Collections (9 total)

Time interval	Ma	Country or state	Original ID and collection number
Middle Miocene	15.97 - 11.608	Colombia (Huila)	Megadolodus molariformis (232436 232437)
Serravallian	13.82 - 11.62	Peru (San Martin)	Megadolodus sp. (230802)
Laventan	13.8 - 11.0	Colombia (Huila)	Megadolodus molariformis (133693 186608 186675 187888 188018)
Late/Upper Miocene	11.608 - 5.333	Venezuela (Falcón)	Bounodus enigmaticus (144849)