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Hudsonelpidia

Reptilia

Taxonomy
Hudsonelpidia was named by McGowan (1995) [Sepkoski's age data: Tr Nori-l]. It is not extant.

It was assigned to Ichthyosauria by Sepkoski (2002); to Hudsonelpidiidae by McGowan and Motani (2003) and Maisch (2010); and to Parvipelvia by Motani (1999), Maisch and Matzke (2000), Fischer et al. (2013) and Ji et al. (2016).

Species

Synonymy list
YearName and author
1995Hudsonelpidia McGowan
1999Hudsonelpidia Motani p. 482
2000Hudsonelpidia Maisch and Matzke pp. 71, 97
2002Hudsonelpidia Sepkoski
2003Hudsonelpidia McGowan and Motani
2010Hudsonelpidia Maisch
2013Hudsonelpidia Fischer et al.
2016Hudsonelpidia Ji et al. p. 11

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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
RankNameAuthor
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Ichthyosauromorpha
Ichthyosauriformes
Ichthyopterygia(Owen 1840)
Eoichthyosauria
Ichthyosauria(de Blainville 1835)
Parvipelvia
genusHudsonelpidiaMcGowan 1995

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. †Hudsonelpidia McGowan 1995
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Diagnosis
ReferenceDiagnosis
R. Motani 1999Manual zeugopodials much wider than long while pes zeugopodials much longer than wide; radiale without anterior notch; high, straight dorsal neural spines.
M. W. Maisch and A. T. Matzke 2000"Small ichthyosaur, less than 2 m in length, snout short, orbits large, anterior neural spines very elongated, haemapophyses still ossified, spatium interosseum in forelimb reduced to foramen, fore- and hindfins at least tetradactyl, ischium and pubis elongate and slender, pubic foramen and notch entirely lost, tibia remains elongate."
C. Ji et al. 2016Short snout; high, narrow dorsal neural spines; humerus slender, slightly longer than femur; iliac anteromedial prominence present; pubis triangular rather than plate-like and longer than wide; ischium plate-like, wider than pubis, and concave anteroposteriorly; posterior extent of fibula much posterior to femur.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Environment: marineo
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Reproduction: viviparouso
Created: 2009-07-20 06:07:40
Modified: 2010-02-23 00:20:57
Source: o = order
Reference: Kiessling 2004

Age range: Norian or 228.00000 to 208.50000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Triassic237.0 - 201.3Canada (British Columbia) H. brevirostris (174893)
Norian228.0 - 208.5Canada (British Columbia) H. sp. (144396)