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Lukousaurus

Description

Lukousaurus is a taxon based on most of a small skull's snout, displaying distinctive lachrymal horns, found in the Early Jurassic-age Lower Lufeng Formation, Yunnan, China and was described by Chung Chien Young in 1940.The generic name refers to the Lugou Bridge, lit. “crossroads”, near Beijing, where the Sino-Japanese War started.L. yini is tentatively classified as a theropod dinosaur by some allied to ceratosaurs, by others a coelurosaur. Its skull is rather robust for its size though the teeth were described by the author as typically theropodan. It may, however, be a crurotarsan or a primitive crocodilian.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4578214https://www.gbif.org/species/4578214
PaleoBioDB ID (PBDB)38523https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=38523
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Dinosauria : Coelophysidae : Lukousaurus
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Eosuchia : Lukousaurus
Taxonomic Status (GBIF)accepted
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-TriploblasticaLankester 1877
-NephrozoaJondelius et al. 2002
-DeuterostomiaGrobben 1908
phylumChordataHaeckel 1847
subphylumVertebrataLamarck 1801
superclassGnathostomataGegenbauer 1874
-Osteichthyes
-SarcopterygiiRomer 1955
subclassDipnotetrapodomorpha
subclassTetrapodomorpha
-Tetrapoda
-ReptiliomorphaSäve-Söderbergh 1934
-AnthracosauriaSäve-Söderbergh 1934
-Batrachosauria
-Cotylosauria
-AmniotaHaeckel 1866
-SauropsidaHuxley 1864
classReptiliaLaurenti 1768
subclassEureptilia
-RomeriidaGauthier et al. 1988
-Diapsida
-Eosuchia
-NeodiapsidaBenton 1985
-SauriaGauthier 1984
-Archosauromorpha
-CrocopodaEzcurra 2016
-ArchosauriformesGauthier 1986
-EucrocopodaEzcurra 2016
-Archosauria
-Pseudosuchia
-SuchiaKrebs 1974
-ParacrocodylomorphaParrish 1993
-Loricata
-Crocodylomorpha
genusLukousaurusYoung 1948
Scientific NameLukousaurus Young, 1948
Name Published InBull. Geol. Soc. China, Nanking, 28, (1-2)
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Lukousaurusgenusbelongs to Coelurosauriastated without evidenceYoung, 1940
Lukousaurusgenusbelongs to PodokesauridaeimpliedRomer, 1956
Lukousaurusgenusbelongs to Podokesauridaestated without evidenceHuene, 1959
Lukousaurusgenusbelongs to Podokesauridaestated with evidenceTatarinov, 1964
Lukousaurusgenusbelongs to Podokesauridaestated without evidenceSimmons, 1965
Lukousaurusgenusbelongs to ProcompsognathidaeimpliedRomer, 1966
Lukousaurusgenusbelongs to Podokesauridaestated without evidenceSteel, 1970
Lukousaurusgenusbelongs to Teratosauridaestated without evidenceRozhdestvensky, 1977
Lukousaurusgenusbelongs to Podokesauridaestated without evidenceAnderson and Cruickshank, 1978
Lukousaurusgenusbelongs to Coelurosauriastated without evidenceZhao, 1983
Lukousaurusgenusbelongs to Theropodastated without evidenceWelles, 1984
Lukousaurusgenusbelongs to Podokesauridaestated without evidenceBattail, 1986
Lukousaurusgenusbelongs to PodokesauridaeimpliedCarroll, 1988
Lukousaurusgenusbelongs to Podokesauridaestated without evidenceDong, 1992
Lukousaurusgenusbelongs to Crocodylomorphastated with evidenceIrmis, 2004
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance201 - 199 Ma
Early Jurassic
Last Recorded Appearance199 - 191 Ma
Early Jurassic
Environmentterrestrial (based on Diapsida)
Motilityactively mobile (based on Osteichthyes)
Dietcarnivore (based on Pseudosuchia)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)C.-C. Young. 1940. Preliminary notes on the Lufeng vertebrate fossils. Bulletin of the Geological Society of China 20(3-4):235-239
Wikipediahttps://en.wikipedia.org/wiki/Lukousaurus

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Lukousaurus yini
species
accepted (GBIF)
listed (PBDB)
4201 Ma
Early Jurassic
199 Ma
Early Jurassic

Obsolete Names

NameSourceTaxon RankTaxonomy
Loukousaurus Young, 1940GBIFgenusAnimalia : Chordata : Reptilia : Dinosauria : Coelophysidae : Loukousaurus

Synonymy List

YearName and Author
1940Lukousaurus Young p. 237
1946Lukousaurus Young p. 8
1948Lukousaurus Young p. 75
1956Lukousaurus Romer p. 611
1959Lukousaurus Huene p. 120
1964Lukousaurus Tatarinov p. 530
1965Lukousaurus Simmons p. 53
1966Loukousaurus Romer p. 369
1970Lukousaurus Steel p. 12
YearName and Author
1977Lukousaurus Rozhdestvensky p. 111
1978Lukousaurus Anderson and Cruickshank p. 31
1983Lukousaurus Zhao p. 302
1984Lukousaurus Welles p. 177
1986Lukousaurus Battail p. 48
1988Lukousaurus Carroll
1992Lukousaurus Dong p. 164
2004Lukousaurus Irmis

References

Young C.-C. (1940) Preliminary notes on the Lufeng vertebrate fossils, Bulletin of the Geological Society of China 20 3-4, 235-239
Young C.-C. (1948) On two new saurischians from Lufeng, China, Bulletin of the Geological Society of China 28 1-2, 78-90
Romer A. S. (1956) , Osteology of the Reptiles, University of Chicago Press, 1-772
Tatarinov L. P. (1964) Nadotryad Dinosauria. Dinozavry [Superorder Dinosauria. Dinosaurs], Osnovy Paleontologii [Fundamentals of Paleontology] 12, 523-589
Simmons D. J. (1965) The non-therapsid reptiles of the Lufeng Basin, Yunnan, China, Fieldiana: Geology 15 1, 1-93
Romer A. S. (1966) , Vertebrate Paleontology, 3rd edition, 1-468
Steel R. (1970) Part 14. Saurischia, Handbuch der Paläoherpetologie/Encyclopedia of Paleoherpetology. Gustav Fischer Verlag, Stuttgart, 1-87
Rozhdestvensky A. K. (1977) The study of dinosaurs in Asia, Journal of the Palaeontological Society of India 20, 102-119
Zhao X. (1983) Phylogeny and evolutionary stages of Dinosauria, Acta Palaeontologica Polonica 28 1-2, 295-306
Welles S. P. (1984) Dilophosaurus wetherilli (Dinosauria, Theropoda): osteology and comparisons, Palaeontographica Abteilung A 185, 85-180
Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698
Dong Z. (1992) Dinosaurian Faunas of China, China Ocean Press, Beijing, 1-188
Irmis R. B. (2004) First report of Megapnosaurus (Theropoda: Coelophysoidea) from China, PaleoBios 24 3, 11-18
Nomenclator Zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus, 1758 to the end of 2004. Digitised by uBio from vols. 1-9 of Neave (ed.), 1939-1996 plus supplementary digital-only volume. http://ubio.org/NomenclatorZoologicus (as at 2006). - via The Interim Register of Marine and Nonmarine Genera
SN2000: Brands, S. J. (compiler) 1989-2005. Systema Naturae 2000. Amsterdam, The Netherlands (2006 version). Available online at http://sn2000.taxonomy.nl/. - via The Interim Register of Marine and Nonmarine Genera
Bull. Geol. Soc. China, Nanking, 28, (1-2) - via The Interim Register of Marine and Nonmarine Genera
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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