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Pallimnarchus

Description

Pallimnarchus is an extinct genus of mekosuchine crocodylians from the Pliocene and Pleistocene of Australia. Remains of this animal have been found in the Riversleigh lagerstätte of northwestern Queensland. It was a medium-sized crocodile, estimated to grow up to 5 metres in length. It had conical teeth with serrate carinae, and an extremely broad snout, features that probably allowed it to specialise in ambushing prey in shallow water.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4822220https://www.gbif.org/species/4822220
PaleoBioDB ID (PBDB)38454https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=38454
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Crocodylia : Crocodylidae : Pallimnarchus
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Crocodylia : Crocodylidae : Pallimnarchus
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
suborderCrocodyliformesHay 1930
-MesoeucrocodyliaWhetstone and Whybrow 1983
-NeosuchiaClark 1988
suborderEusuchiaHuxley 1875
-Crocodylia
-BrevirostresCuvier
superfamilyCrocodyloideaDeraniyagala 1939
familyCrocodylidaeCuvier 1807
subfamilyMekosuchinaeBalouet and Buffetaut 1987
genusPallimnarchusDe Vis 1886
Scientific NamePallimnarchus De Vis, 1886
Name Published InProc. Roy. Soc. Queensland, 2, 1885, 191 (as Pallymnarchus p. 218).
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Pallimnarchusgenusbelongs to Crocodylidaestated with evidenceMolnar, 1982
Pallimnarchusgenusbelongs to CrocodylidaeimpliedCarroll, 1988
Pallimnarchusgenusbelongs to Crocodylinaestated with evidenceWillis, 1993
Pallimnarchusgenusbelongs to Mekosuchinaestated with evidenceWillis et al., 1993
Status (PBDB)extinct
Taxon Size (PBDB)3
First Recorded Appearance5.33 - 3.60 Ma
Neogene
Last Recorded Appearance0.13 Ma
Pleistocene
Environmentmarine (based on Mesoeucrocodylia)
Motilityactively mobile (based on Osteichthyes)
Dietcarnivore (based on Crocodylia)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)R. L. Carroll. 1988. Vertebrate Paleontology and Evolution
Wikipediahttps://en.wikipedia.org/wiki/Pallimnarchus

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Pallimnarchus gracilis
species
accepted (GBIF)
listed (PBDB)
55.33 Ma
Miocene
2.59 Ma
Pleistocene
Pallimnarchus pollens
species
accepted (GBIF)
listed (PBDB)
95.33 Ma
Miocene
2.59 Ma
Pleistocene

Synonymy List

YearName and Author
1886Pallimnarchus De Vis
1982Pallimnarchus Molnar
1988Pallimnarchus Carroll
1993Pallimnarchus Willis p. 96
1993Pallimnarchus Willis et al.
1997Pallimnarchus Willis and Molnar
2002Pallimnarchus Molnar et al. p. 624

References

Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698
Molnar R. E. (1982) Pallimnarchus and other Cenozoic crocodiles of Queensland, Memoirs of the Queensland Museum 20 3, 657-673
Willis P. M. A. (1993) Trilophosuchus rackhami gen. et sp. nov., a new crocodilian from the early Miocene limestones of Riversleigh, northwestern Queensland, Journal of Vertebrate Paleontology 13 1, 90-98
Willis P. M. A., Molnar R. E., et al (1993) An Early Eocene crocodilian from Murgon, southeastern Queensland, Kaupia 3, 27-33
Willis P. M. A., Molnar R. E. (1997) A review of the Plio-Pleistocene crocodilian genus Pallimnarchus, Proceedings of the Linnean Society of New South Wales 117, 224-242
Molnar R. E., Worthy T., et al (2002) An extinct Pleistocene endemic mekosuchine crocodylian from Fiji, Journal of Vertebrate Paleontology 22 3, 612-628
GBIF/Paleo Database - via The Interim Register of Marine and Nonmarine Genera
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
Proc. Roy. Soc. Queensland, 2, 1885, 191 (as Pallymnarchus p. 218). - 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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