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Yanjisuchus longshanensis
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
Year | Name and author |
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2021 | Yanjisuchus longshanensis Rummy et al. p. 3 |
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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
Reference | Diagnosis | |
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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
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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 |
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Late/Upper Albian - Cenomanian | China (Jilin) | Crocodyliformes indet. (type locality: 221681) |