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Helochelydra

Osteichthyes

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
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
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: Carroll 1988, Hendy et al. 2009, Kiessling 2004

Age range: base of the Berriasian to the top of the Late/Upper Campanian or 143.10000 to 72.20000 Ma

Collections (12 total)


Time interval Ma Country or state Original ID and collection number
Berriasian143.1 - 137.05United Kingdom (England) Tretosternum bakewelli (92915 127480)
Late/Upper Valanginian137.05 - 132.6United Kingdom (England) Compsemys bakewelli (123856) Trionyx bakewelli (52258)
Valanginian137.05 - 132.6United Kingdom (England) Tretosternum sp. (123855)
Late/Upper Hauterivian132.6 - 125.77Spain (Aragón) H. sp. (36367)
Late/Upper Hauterivian - Early/Lower Barremian132.6 - 121.4Spain (Castilla y León) H. sp., Solemydidae indet. (89271)
Late/Upper Hauterivian - Aptian132.6 - 113.2Spain (Castilla y Leon) Solemydidae indet. (89274)
Late/Upper Barremian125.77 - 121.4Spain (Valenciana) H. sp. (61327)
Barremian - Early/Lower Aptian125.77 - 119.57United Kingdom (England) Tretosternum sp. (92917)
Late/Upper Barremian - Early/Lower Aptian125.77 - 119.57Germany (North Rhine-Westphalia) H. sp. (152548)
Late/Upper Campanian83.6 - 72.2Spain (Castilla y Leon) H. nopcsai (28406)