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Wintonopus

Reptilia

Synonyms
Synonymy list
YearName and author
1984Wintonopus Molnar p. 155
1984Wintonopus Thulborn and Wade p. 421
1984Skartopus Thulborn and Wade p. 427
1992Skartopus Lockley p. 277
1992Wintonopus Lockley p. 277
2003Skartopus Romero Molina et al. p. 26
2003Wintonopus Romero Molina et al. p. 26
2009Skartopus Gierlinski et al. p. 222
2011Wintonopus Romilio and Salisbury p. 72
2013Wintonopus Romilio et al. p. 114
2016Wintonopus Salisbury et al. p. 76

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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
Cotylosauria()
Amniota
Sauropsida
classReptilia
RankNameAuthor
subclassEureptilia()
Romeriida
Diapsida()
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Ornithischia()
Genasauria
Cerapoda
Ornithopoda()
genusWintonopus

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. †Wintonopus Thulborn and Wade 1984
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Wintonopus latomorum Thulborn and Wade 1984
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Invalid names: Skartopus australis Thulborn and Wade 1984 [synonym]
Wintonopus middletonae Salisbury et al. 2016
Invalid names: Skartopus Thulborn and Wade 1984 [synonym]
Diagnosis
ReferenceDiagnosis
R. A. Thulborn and M. Wade 1984(ichnogenus and ichnospecies): narrow trackway of small to medium-size digitigrade biped, with pace angulation about 160°. Footprint size index (SI) usually between 3.2 and 11.1 cm, but occasionally as high as 26.6 cm. No imprints of hand or tail. Footprints tridactyl (digits 2, 3 and 4), slightly broader than long (ratio FW/FL about 1.15), showing distinct positive rotation. Digits broad, with rounded or bluntly angular tips,without indications of phalangeal pads. Digit 3 longest, with sub-parallel sides. Digit 4 shorter and slightly narrower than digit 3, extended as blunt posterior salient. Digits 3 and 4 close together, parallel or only slightly divergent. Digit 2 shortest, and widely separated from digit 3 (with interdigital angle often about 60°). Imprints of digits 2 and 3 sometimes completely separated. Posterior margin of foot convex forwards. Ratio PL/FL usually between 8.0 and 13.5, rarely as low as 4.0 or as high as 15.0; ratio SL/FL usually between 16.0 and 24.0, rarely as low as 8.0 or as high as 27.0
R. A. Thulborn and M. Wade 1984 (Skartopus)(ichnogenus and ichnospecies): trackway of small digitigrade biped, with pace anguation about 150°. Footprint size index (SI) between 2.9 and 5.7 cm. No imprints of hand or tail. Footprints tridactyl (digits 2, 3 and 4), slightly longer than broad, (ratio FW/FL about 0.95) showing distinct positive rotation. Digit imprints narrow, straight and sharply pointed, without indications of phalangeal pads. Digit 3 longest; digits 2 and 4 about equal in length, and almost equally divergent from digit 3 (both interdigital angles abetween 25° and 30°). Imprint of digit 4 extends slightly farther back than imprint of digit 2, but does not form a posterior salient or 'spur'. Traces of small interdigital webs sometimes present. Posterior margin of footprint is an oblique line (posterolateral to anteromedial), either straight or arched forwards. In some examples there is an imprint of the metapodium: this is sub-rectangular in outline and roughly equivalent in length to digit 3. Ratio PL/FL usually between 5.5 and 8.5, rarely as low as 5.2 or as high as 9.1; ratio SL/FL usually between 11.0 and 16.0, rarely as low as 10.6 or as high as 17.3.
A. Romilio et al. 2013Small- to medium-sized (<0.3 m long), tridactyl, mesaxonic pes impressions that are wider than long. Digit impressions are cranially directed and are short in length, with digit III being the longest, and digit IV being equivalent to or longer than digit II. The proximal track margin is more concave proximomedially than proximolaterally, with the proximal margin of the digit IV impression more proximally positioned relative to the impression of digit II. Both digit II and IV impressions extend farther proximally than the digit III impression. A metatarsophalangeal pad impression is absent, and claw impressions, when present, are pointed to rounded.