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Hassiacosuchus

Description

Hassiacosuchus is an extinct genus of small alligatorid from the early Eocene of Germany, found at the Messel pit. It was named in 1935 by K. Weitzel, and the type species is H. haupti. A second species, H. kayi, was named in 1941 by C.C. Mook for material from the Bridgerian (early Eocene) of Wyoming, but was reassigned to Procaimanoidea in 1967 by Wassersug and Hecht. Hassiacosuchus may be the same as Allognathosuchus; Christopher Brochu has recommended continuing to use Hassiacosuchus.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4822174https://www.gbif.org/species/4822174
PaleoBioDB ID (PBDB)58004https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=58004
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Crocodylia : Crocodylidae : Hassiacosuchus
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Crocodylia : Alligatoridae : Hassiacosuchus
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
-GlobidontaBrochu 1999
familyAlligatoridaeGray 1844
subfamilyAlligatorinaeCuvier 1807
genusHassiacosuchusWeitzel 1935
Scientific NameHassiacosuchus Weitzel, 1935
Name Published InNot. Ver. Erdk. Hess. Geol. Land. Darmstadt, (5) Heft 16
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Hassiacosuchusgenusbelongs to Alligatorinaestated without evidenceWeitzel, 1935
Hassiacosuchusgenusbelongs to Alligatorinaestated with evidenceBrochu, 1999
Hassiacosuchusgenusbelongs to Globidontastated with evidenceMartin and Buffetaut, 2008
Hassiacosuchusgenusbelongs to Alligatorinaestated with evidenceMartin and Lauprasert, 2010
Hassiacosuchusgenusbelongs to Alligatoroideastated without evidencePuértolas et al., 2011
Hassiacosuchusgenusbelongs to Globidontastated without evidenceFarke et al., 2014
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance48.6 - 41.3 Ma
Eocene
Last Recorded Appearance47.8 - 40.4 Ma
Eocene
Environmentmarine (based on Mesoeucrocodylia)
Motilityactively mobile (based on Osteichthyes)
Dietcarnivore (based on Crocodylia)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)K. Weitzel. 1935. Hassiacosuchus haupti n. g. n. sp., ein durophages Krokodil aus dem Mitteleozän von Messel. Notizblatt des Vereins für Erdkunde und der Hessischen Geologischen Landesanstalt Darmstadt 16:40-49
Wikipediahttps://en.wikipedia.org/wiki/Hassiacosuchus

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Hassiacosuchus haupti
species
accepted (GBIF)
listed (PBDB)
148.6 Ma
Eocene
48.6 Ma
Eocene

Synonymy List

YearName and Author
1935Hassiacosuchus Weitzel pp. 42-43
1999Hassiacosuchus Brochu
2008Hassiacosuchus Martin and Buffetaut
2010Hassiacosuchus Martin and Lauprasert
2011Hassiacosuchus Puértolas et al.
2014Hassiacosuchus Farke et al.

References

Weitzel K. (1935) Hassiacosuchus haupti n. g. n. sp., ein durophages Krokodil aus dem Mitteleozän von Messel, Notizblatt des Vereins für Erdkunde und der Hessischen Geologischen Landesanstalt Darmstadt 16, 40-49
Brochu C. A. (1999) Phylogenetics, Taxonomy, and Historical Biogeography of Alligatoroidea, Journal of Vertebrate Paleontology 19 S2, 9-100
Martin J. E., Buffetaut E. (2008) Crocodilus affuvelensis Matheron, 1869 from the Late Cretaceous of southern France: a reassessment, Zoological Journal of the Linnean Society 152, 567-580
Martin J. E., Lauprasert K. (2010) A new primitive alligatorine from the Eocene of Thailand: relevance of Asiatic members to the radiation of the group, Zoological Journal of the Linnean Society 158, 608-628
Puértolas E., Canudo J. I., et al (2011) A new crocodylian from the late Maastrichtian of Spain: Implications for the initial radiation of crocodyloids, PLoS One 6 6, e20011:1-12 doi:10.1371/journal.pone.0020011
Farke A. A., Henn M. M., et al (2014) Leidyosuchus (Crocodylia: Alligatoroidea) from the Upper Cretaceous Kaiporowits Formation (Late Campanian) of Utah, USA, PaleoBios 30 3, 72-88
GBIF/Paleo Database - via The Interim Register of Marine and Nonmarine Genera
NZ cross ref or inferred from publ. title - 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
Not. Ver. Erdk. Hess. Geol. Land. Darmstadt, (5) Heft 16 - 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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