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Glasbius twitchelli

Mammalia - Glasbiidae

Taxonomy
Glasbius twitchelli was named by Archibald (1982). Its type specimen is UCMP 115853, a tooth (right M3), and it is a 3D body fossil. Its type locality is Flat Creek 5, which is in a Lancian terrestrial sandstone in the Hell Creek Formation of Montana.

Synonymy list
YearName and author
1982Glasbius twitchelli Archibald pp. 137-138 figs. 45-49
2004Glasbius twitchelli Kielan-Jaworowska et al. pp. 443, 462
2007Glasbius twitchelli Davis p. 247

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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
—Cotylosauria()
—Amniota
RankNameAuthor
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
—Marsupialiformes
suborderPolydolopimorphiaArcher 1984
familyGlasbiidae
genusGlasbius
speciestwitchelli

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.

†Glasbius twitchelli Archibald 1982
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: herbivoreg
Diet 2: frugivoreg
Reproduction: viviparoussubc
Created: 2005-09-07 09:57:58
Modified: 2011-04-27 19:57:49
Source: g = genus, subc = subclass, c = class, subp = subphylum
References: Hopson 1973, Hendy et al. 2009, Lillegraven 1979, Clemens 1979, Carroll 1988

Age range: Late/Upper Maastrichtian or 72.20000 to 66.00000 Ma

Collections (19 total)


Time interval Ma Country or state Original ID and collection number
Lancian72.2 - 66.0Canada (Saskatchewan) Glasbius twitchelli (14655)
Lancian72.2 - 66.0USA (Montana) Glasbius intricatus (14515) Glasbius sp. (14516) Glasbius twitchelli (14507 14508 14533 14535 14536 type locality: 14549 14616 14618 14624 14647 14649 14650 172642 172644)
Late/Upper Maastrichtian72.2 - 66.0USA (Montana) Glasbius twitchelli (183109)
Late/Upper Maastrichtian72.2 - 66.0USA (North Dakota) Glasbius twitchelli (45137)