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Eubrontes monax

Reptilia - Grallatoridae

Taxonomy
Paracoelurosaurichnus monax was named by Zhen et al. (1986). It is considered to be a form taxon. Its type specimen is BPV-FP2, a footprint, and it is a trace fossil. Its type locality is Xiiyang, Jinning tracksites (BPV), which is in a Hettangian terrestrial horizon in the Fengjiahe Formation of China.

It was recombined as Eubrontes monax by Lockley et al. (2013), Xing et al. (2014), Xing et al. (2021) and Li et al. (2021).

Synonymy list
YearName and author
1986Paracoelurosaurichnus monax Zhen et al. p. 4–5 fig. 4
1989Paracoelurosaurichnus monax Zhen et al. p. 192
2008Paracoelurosaurichnus monax Fujita et al. p. 33
2009Paracoelurosaurichnus monax Xing et al. p. 23
2013Eubrontes monax Lockley et al. p. 6
2014Eubrontes monax Xing et al. p. 344
2017Paracoelurosaurichnus monax Xing et al. p. 115
2021Eubrontes monax Li et al. p. 14
2021Eubrontes monax Xing et al.

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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
RankNameAuthor
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
familyGrallatoridae
genusEubrontes
speciesmonax()

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.

†Eubrontes monax Zhen et al. 1986
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Diagnosis
ReferenceDiagnosis
S. Zhen et al. 1986Biped, digitigrade, with three clawed toes (II, III, IV), there are neither impression of hallux nor toe V. The outline of the footprint is not symmetrical. Toe III is the longest. The angles between the digits are II-30°-III-10°-IV. The phalangeal pads range closely. There are neither metatarso-phalangeal pads nor impression of tail touching the ground.
S. Zhen et al. 1989Bipedal, digitigrade, with three clawed toes (II, III, IV). Impressions of toe V and hallux are absent. The outline of the foot is compact. The length of the footprint is 25.5 cm (digit III) and the width is 19.0 cm. The angles between the digits are II-30°-III-10°-IV.