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Helochelydra

Reptilia

Synonymy list
YearName and author
1928Helochelydra Nopcsa
1966Helochelydra Kuhn p. 25
1999Helochelydra Lapparent de Broin and Murelaga
2004Helochelydra Milner pp. 1456-1457
2011Helochelydra Milner p. 297
2012Helochelydra Pérez-García et al.
2017Helochelydra Joyce

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
RankNameAuthor
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
Testudinata(Oppel 1811)
Helochelydridae()
genusHelochelydraNopcsa 1928

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. †Helochelydra Nopcsa 1928
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Helochelydra anglica Lydekker 1889
Helochelydra bakewelli Mantell 1833
Helochelydra nopcsai Lapparent de Broin and Murelaga 1999
Diagnosis
ReferenceDiagnosis
A. R. Milner 2004(after de Lapparent de Broin and Murelaga 1999). Solemydid with shell decorated completely with separate raised tubercles, thin pustules about 1 mm in diameter forming vermiculate ridges towards the medial parts of the pleurals, entoplastral scute possibly oval/rounded and situated towards the anterior of the entoplastron.
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: Hendy et al. 2009, Carroll 1988

Age range: base of the Late/Upper Valanginian to the top of the Late/Upper Campanian or 140.20000 to 70.60000 Ma

Collections (12 total)


Time interval Ma Country or state Original ID and collection number
Berriasian145.0 - 139.8United Kingdom (England) Tretosternum bakewelli (92915 127480)
Late/Upper Valanginian140.2 - 136.4United Kingdom (England) Compsemys bakewelli (123856) Trionyx bakewelli (52258)
Valanginian139.8 - 132.9United Kingdom (England) Tretosternum sp. (123855)
Late/Upper Hauterivian136.4 - 130.0Spain (Aragón) H. sp. (36367)
Late/Upper Hauterivian - Early/Lower Barremian136.4 - 125.45Spain (Castilla y León) H. sp., Solemydidae indet. (89271)
Late/Upper Hauterivian - Aptian136.4 - 113.0Spain (Castilla y Leon) Solemydidae indet. (89274)
Late/Upper Barremian130.0 - 125.45Spain (Valenciana) H. sp. (61327)
Late/Upper Barremian - Early/Lower Aptian130.0 - 122.46Germany (North Rhine-Westphalia) H. sp. (152548)
Barremian - Early/Lower Aptian129.4 - 122.46United Kingdom (England) Tretosternum sp. (92917)
Late/Upper Campanian83.5 - 70.6Spain (Castilla y Leon) H. nopcsai (28406)