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Yanjisuchus longshanensis

Reptilia - Paralligatoridae

Taxonomy
Yanjisuchus longshanensis was named by Rummy et al. (2021). Its type specimen is YJDM 00009, a partial skeleton (partial skull and postcrania), and it is a 3D body fossil. Its type locality is Longshan, Yanji, which is in an Albian/Cenomanian fluvial horizon in the Longjing Formation of China. It is the type species of Yanjisuchus.

Synonymy list
YearName and author
2021Yanjisuchus longshanensis Rummy et al. p. 3

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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
subclassEureptilia()
RankNameAuthor
Romeriida
Diapsida()
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
Pseudosuchia(Zittel 1890)
SuchiaKrebs 1974
Paracrocodylomorpha
Loricata(Merrem 1820)
Crocodylomorpha()
Solidocrania
suborderCrocodyliformes
MesoeucrocodyliaWhetstone and Whybrow 1983
NeosuchiaClark 1988
suborderEusuchiaHuxley 1875
familyParalligatoridaeKonjukova 1954
genusYanjisuchus
specieslongshanensis

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.

Yanjisuchus longshanensis Rummy et al. 2021
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Diagnosis
ReferenceDiagnosis
P. Rummy et al. 2021(* denotes autapomorphies in the context of other paralligatorids). A medium-large crocodyliform diagnosed by the following combination of derived characters: wedge-shaped elevation on the anterior part of the frontal; interorbital ridge along the midline and a grooved, transversely oriented preorbital ridge; a weak ridge running anteroposteriorly on the lateral surface of the jugal; posterior process of the jugal elongate and forming the entire infratemporal bar; mandibular symphysis elongate and formed by the fused dentaries; diastema posterior to the fourth dentary tooth*; coracoid and the scapula almost equal in length; the proximal quarter of the fibula strongly curving posteriorly; medial keel developed on the posterodorsal halves of the osteoderms; and more than two rows of dorsal osteoderms.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marineuc
Locomotion: actively mobilec
Diet: carnivoresubo
Created: 2017-04-17 10:39:01
Modified: 2017-04-17 10:39:01
Source: subo = suborder, c = class, subp = subphylum, uc = unranked clade
References: Benton 1983, Carroll 1988, Hendy et al. 2009, Bush and Bambach 2015

Age range: base of the Late/Upper Albian to the top of the Cenomanian or 105.30000 to 93.90000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Albian - Cenomanian105.3 - 93.9China (Jilin) Crocodyliformes indet. (type locality: 221681)