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Akanthosuchus

Description

Akanthosuchus (meaning "spine crocodile," in reference to its armor) is an extinct genus of alligatoroid crocodilian, possibly an alligatorine. Its fossils are found in the Paleocene-age Nacimiento Formation of the San Juan Basin, New Mexico, USA. It is known from a partial skeleton and isolated bony armor. Its armor was distinctive, with spike-shaped and blade-shaped pieces, and it is the only known crocodilian with a combination of both.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4822099https://www.gbif.org/species/4822099
PaleoBioDB ID (PBDB)38422https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=38422
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Crocodylia : Alligatoridae : Akanthosuchus
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Crocodylia : Akanthosuchus
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
superfamilyAlligatoroideaGray 1844
genusAkanthosuchusO'Neill Lucas & Kues 1981
Scientific NameAkanthosuchus O'Neill, Lucas & Kues, 1981
Name Published Inin Lucas & Kues 1981, Journal Paleont. 55 (2)
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Akanthosuchusgenusbelongs to Crocodylidaestated with evidenceO'Neill et al., 1981
Akanthosuchusgenusbelongs to AlligatoridaeimpliedCarroll, 1988
Akanthosuchusgenusbelongs to Alligatoroideastated with evidenceHill and Lucas, 2006
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance66.0 - 63.3 Ma
Paleocene
Last Recorded Appearance63.3 - 61.7 Ma
Paleocene
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/Akanthosuchus

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Akanthosuchus langstoni
species
accepted (GBIF)
listed (PBDB)
366.0 Ma
Late/Upper Cretaceous
63.3 Ma
Paleocene

Synonymy List

YearName and Author
1981Akanthosuchus O'Neill et al.
1988Akanthosuchus Carroll
2006Akanthosuchus Hill and Lucas

References

Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698
Hill R. V., Lucas S. G. (2006) New data on the anatomy and relationships of the Paleocene crocodylian Akanthosuchus langstoni, Acta Palaeontologica Polonica 51 3, 455-464
NZ cross ref or inferred from publ. title - via The Interim Register of Marine and Nonmarine Genera
Nomenclator Zoologicus (authority adjusted) - 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
as per family - via The Interim Register of Marine and Nonmarine Genera
GBIF/Yale University Peabody Museum: Peabody Paleoportal DiGIR Service (VP) - via The Interim Register of Marine and Nonmarine Genera
in Lucas & Kues 1981, Journal Paleont. 55 (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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