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Gregaripus bairdi

Reptilia

Taxonomy
Gregaripus bairdi was named by Weems (1987). Its type specimen is USNM 358651, a footprint, and it is a trace fossil. Its type locality is Culpeper Crushed Stone Quarry (upper), which is in a Lacian/Alaunian lacustrine - large siltstone/mudstone in the Bull Run Formation of Virginia.

Synonymy list
YearName and author
1987Gregaripus bairdi Weems p. 18 figs. 4, Pl. 2A, C, D
1992Gregaripus bairdi Weems p. 126
2006Gregaripus bairdi Weishampel p. 134

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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
—Sauropsida
RankNameAuthor
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
genusGregaripus
speciesbairdi

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.

†Gregaripus bairdi Weems 1987
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
Adult length: 10 to < 100o
Adult width: 1.0 to < 10o
Adult height: 1.0 to < 10o
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: gregariouso
Environment: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: herbivoreo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2004-12-14 12:50:52
Modified: 2004-12-14 14:50:52
Source: o = order
Reference: Marsh 1875

Age range: base of the Lacian to the top of the Alaunian or 221.50000 to 212.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Lacian - Alaunian221.5 - 212.0USA (Virginia) Gregaripus bairdi (type locality: 68890)