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Mesodma formosa

Osteichthyes - 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), 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), Donohue et al. (2013).

Sister species lacking formal opinion data
M. antiqua
Entered
by J. Alroy on 2003-01-23; modified by R. Benson on 2013-10-27

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
classOsteichthyes
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: Carroll 1988, Hendy et al. 2009, Gunnell et al. 1995, Hopson 1973, Krause 1982

Age range: base of the Early/Lower Campanian to the top of the Pu1 or 83.60000 to 63.40000 Ma

Collections (47 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Campanian83.6 - 72.2USA (Utah) Mesodma formosa (14429)
Judithian83.6 - 72.2USA (Utah) Mesodma formosa (14474)
Late/Upper Campanian83.6 - 72.2Mexico (Baja California) Mesodma formosa (14456)
Late/Upper Campanian83.6 - 72.2USA (Utah) Mesodma formosa (14466)
Lancian72.2 - 66.0Canada (Alberta) Mesodma formosa (14630 14632 14634)
Lancian72.2 - 66.0USA (Wyoming) Cimolomys formosus (14511) Halodon formosus (14567 14590 14592) Mesodma formosa (14514 14519 14526 14796)
Lancian72.2 - 66.0USA (Colorado) Mesodma formosa (96081)
Lancian72.2 - 66.0USA (Montana) Mesodma formosa (14508 14515 14549 14576 14595 14615 14616 14639 172642 172644)
Lancian72.2 - 66.0Canada (Saskatchewan) Mesodma formosa (14558 14655)
Lancian72.2 - 66.0USA (South Dakota) Mesodma formosa (14537 14604 14612)
Lancian72.2 - 66.0USA (New Mexico) Mesodma formosa (14573 14619)
Late/Upper Maastrichtian72.2 - 66.0USA (Wyoming) Mesodma formosa (14585)
Late/Upper Maastrichtian72.2 - 66.0USA (New Mexico) Mesodma formosa (154429 154616)
Pu166.0 - 63.4USA (Montana) Mesodma formosa (231045)
Puercan66.0 - 63.4Canada (Saskatchewan) Mesodma formosa (14691 14768)
Puercan66.0 - 63.4USA (Montana) Mesodma formosa (14743 14759 14766 14801 14802 14809 193844 231047)