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Helcura

Reptilia

Taxonomy
Helcura was named by Hitchcock (1848). It is considered to be a form taxon. Its type is Helcura littoralis.

It was assigned to Chelonia by Hitchcock (1848); to Testudinata by Lull (1904); to Reptilia by Lull (1917); and to Amphibia by Kuhn (1958).

Species
H. anguinea, H. caudata, H. littoralis (type species), H. surgens

Synonymy list
YearName and author
1848Helcura Hitchcock p. 244
1904Helcura Lull p. 530
1917Helcura Lull p. 123
1958Helcura Kuhn p. 18

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
RankNameAuthor
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Testudinata(Oppel 1811)
genusHelcura

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.

G. †Helcura Hitchcock 1848
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†Helcura anguinea Hitchcock 1858
†Helcura caudata Hitchcock 1858
†Helcura littoralis Hitchcock 1848
†Helcura surgens Hitchcock 1858
Diagnosis
ReferenceDiagnosis
E. Hitchcock 1848Quadrupedal; tail and feet trailing upon the ground.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
Locomotion: actively mobilec
Created: 2017-04-17 15:15:35
Modified: 2017-04-17 15:15:35
Source: c = class, subp = subphylum, uc = unranked clade
References: Carroll 1988, Hendy et al. 2009

Age range: Hettangian or 201.30000 to 199.30000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Hettangian201.3 - 199.3USA (Massachusetts) H. anguinea, H. caudata, H. surgens (52986)
Hettangian - Sinemurian201.3 - 190.8USA (Massachusetts) H. anguinea, H. littoralis, H. surgens (52996) H. caudata (52987 52998)