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Mesodma formosa

Mammalia - Multituberculata - Neoplagiaulacidae

Taxonomy
Halodon formosus was named by Marsh (1889). Its type specimen is YPM 11812, a tooth (P4), and it is a 3D body fossil.

It was recombined as Cimolomys formosus by Hay (1902); it was recombined as Ptilodus formosus by Gidley (1909) and Hay (1930); it was synonymized subjectively with Cimolomys gracilis by Simpson (1929); it was recombined as Mesodma formosa by Clemens (1964), Clemens and Kielan-Jaworowska (1979), Sloan (1981), Archibald (1982), Storer (1991), Eberle and Lillegraven (1998), Kielan-Jaworowska et al. (2004), Wilson et al. (2010) and Donohue et al. (2013).

Sister species lacking formal opinion data
M. antiqua

Synonymy list
YearName and author
1889Halodon formosus Marsh
1902Cimolomys formosus Hay p. 560
1909Ptilodus formosus Gidley
1930Ptilodus formosus Hay p. 380
1937Halodon formosus Simpson
1964Mesodma formosa Clemens
1979Mesodma formosa Clemens and Kielan-Jaworowska p. 101
1981Mesodma formosa Sloan
1982Mesodma formosa Archibald
1991Mesodma formosa Storer
1998Mesodma formosa Eberle and Lillegraven
2004Mesodma formosa Kielan-Jaworowska et al. pp. 255, 334-335
2010Mesodma formosa Wilson et al. p. 505
2013Mesodma formosa Donohue et al. p. 680 fig. 4A,B

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
RankNameAuthor
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Allotheria()
orderMultituberculataCope 1884
suborderCimolodonta()
superfamilyPtilodontoidea()
familyNeoplagiaulacidae
genusMesodma
speciesformosa()

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.

†Mesodma formosa Marsh 1889
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: arborealsubo
Diet: omnivoref
Created: 2005-09-11 16:54:47
Modified: 2005-09-11 18:54:47
Source: f = family, subo = suborder, c = class, subp = subphylum
References: Hendy et al. 2009, Carroll 1988, Hopson 1973, Gunnell et al. 1995, Krause 1982

Age range: base of the Judithian to the top of the Puercan or 83.50000 to 63.30000 Ma

Collections (47 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Campanian83.5 - 70.6USA (Utah) Mesodma formosa (14429)
Judithian83.5 - 70.6USA (Utah) Mesodma formosa (14474)
Late/Upper Campanian83.5 - 70.6Mexico (Baja California) Mesodma formosa (14456)
Late/Upper Campanian83.5 - 70.6USA (Utah) Mesodma formosa (14466)
Lancian70.6 - 66.0USA (Montana) Mesodma formosa (14508 14515 14549 14576 14595 14615 14616 14639 172642 172644)
Lancian70.6 - 66.0USA (South Dakota) Mesodma formosa (14537 14604 14612)
Lancian70.6 - 66.0USA (New Mexico) Mesodma formosa (14573 14619)
Lancian70.6 - 66.0Canada (Saskatchewan) Mesodma formosa (14558 14655)
Lancian70.6 - 66.0USA (Wyoming) Cimolomys formosus (14511) Halodon formosus (14567 14590 14592) Mesodma formosa (14514 14519 14526)
Lancian70.6 - 66.0USA (Colorado) Mesodma formosa (96081)
Lancian70.6 - 66.0Canada (Alberta) Mesodma formosa (14630 14632 14634)
Late/Upper Maastrichtian70.6 - 66.0USA (Wyoming) Mesodma formosa (14585)
Late/Upper Maastrichtian70.6 - 66.0USA (New Mexico) Mesodma formosa (154429 154616)
Puercan66.0 - 63.3USA (Montana) Mesodma formosa (14743 14759 14766 14801 14802 14809 193844 231045 231047)
Puercan66.0 - 63.3USA (Wyoming) Mesodma formosa (14796)
Puercan66.0 - 63.3Canada (Saskatchewan) Mesodma formosa (14691 14768)