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Brachycarcharias twiggsensis

Chondrichthyes - Lamniformes - Odontaspididae

Taxonomy
Lamna twiggsensis was named by Case (1981). Its type specimen is USNM 32506, a tooth, and it is a 3D body fossil. Its type locality is Huber Kaolin Quarry, which is in an Eocene marine claystone in the Jacksonian Formation of Georgia.

It was recombined as Brachycarcharias twiggsensis by Ebersole et al. (2019).

Synonymy list
YearName and author
1981Lamna twiggsensis Case p. 58 figs. Plate 3, figs 4a-b, 5a-b, 6a-b, 7a-b, 8a-b, Fig. 3
2019Brachycarcharias twiggsensis Ebersole et al. p. 41

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classChondrichthyes
RankNameAuthor
subclassElasmobranchiiBonaparte 1838
infraclassEuselachii()
NeoselachiiCompagno 1977
superorderGaleomorphiiCompagno 1973
orderLamniformesBerg 1958
familyOdontaspididaeMüller and Henle 1839
genusBrachycarcharias
speciestwiggsensis()

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.

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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Created: 2009-07-21 07:05:21
Modified: 2009-07-21 09:05:21
Source: o = order, subp = subphylum
References: Hendy et al. 2009, Wagner 2023, Carroll 1988

Age range: base of the Bartonian to the top of the Late/Upper Eocene or 41.30000 to 33.90000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Bartonian41.3 - 38.0USA (Alabama) Brachycarcharias twiggsensis (81266 176944)
Priabonian38.0 - 33.9Egypt Brachycarcharias twiggsensis (96952)
Late/Upper Eocene37.2 - 33.9USA (Georgia) Lamna twiggsensis (type locality: 73434)