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Boreostemma acostae

Mammalia - Cingulata - Glyptodontidae

Taxonomy
Asterostemma acostae was named by Villarroel (1983). Its type specimen is ICN-225-1, an osteoderm (Carapace fragment with 44 plates), and it is a 3D body fossil.

It was recombined as Boreostemma acostae by Zurita et al. (2013) and Gonzalez-Ruiz et al. (2015).

Synonymy list
YearName and author
1983Asterostemma acostae Villarroel
2013Boreostemma acostae Zurita et al.
2015Boreostemma acostae Gonzalez-Ruiz et al. p. 1 figs. 2-3

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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
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
RankNameAuthor
—Mammaliaformes
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Americatheria
—Xenarthra()
orderCingulata()
suborderGlyptodontia()
superfamilyGlyptodontoideaGray 1869
familyGlyptodontidaeBurmeister 1879
subfamilyGlyptodontinaeGray 1869
genusBoreostemma
speciesacostae()

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.

†Boreostemma acostae Villarroel 1983
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Diagnosis
ReferenceDiagnosis
C. Villarroel 1983Carapace plates smaller than those of Asterostemma venezolensis Simpson. The central figures of dorsal and dorsolateral plates are flat or convex. The figures of the plates closer to the border of the carapace are flat. The diameter of each figure is 40 or 50 percent the diameter of the figure of the adjacent plates. The posterior teeth of the jaw are narrow and trilobed. Each lobule is different and changes from the lingual to the labial side.
Measurements
partNmeanminimummaximummedians.d.
Cephalic armor diameter293.779.8110.094.921.3
Mandible height445.032.555.550.412.1
Mandible diameter463.6--63.6-
Skull height427.3--27.3-
Skull diameter444.335.656.444.410.3

Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingo
Diet: omnivoreo
Reproduction: viviparoussubc
Created: 2005-08-26 13:20:40
Modified: 2005-08-26 15:20:40
Source: o = order, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Carroll 1988, Nowak 1999, Hendy et al. 2009, Ji et al. 2002

Age range: Laventan or 13.80000 to 11.00000 Ma

Collections (15 total)


Time interval Ma Country or state Original ID and collection number
Laventan13.8 - 11.0Colombia (Huila) Asterostemma acostae (139894) Boreostemma acostae (146527 188086 188254 188255 188256 188257 188258 188259 188260 188261 188262 188263 188264 197211)