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Guarinisuchus munizi

Description

Guarinisuchus is an extinct genus of marine crocodyliform from the Early Paleocene 62 million years ago of the Maria Farinha Formation, Brazil. The type species is G. munizi. It was a dominant predator in its environment, and probably reached a length of 3 metres (9.8 ft). Guarinisuchus appears to be closely related to marine crocodylomorphs found in Africa, which supports the hypothesis that the group originated in Africa and migrated to South America before spreading into the waters off the North American coast.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)8619050https://www.gbif.org/species/8619050
PaleoBioDB ID (PBDB)194872https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=194872
Rankspecies
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Crocodylia : Dyrosauridae : Guarinisuchus : Guarinisuchus munizi
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Eosuchia : Dyrosauridae : Guarinisuchus : Guarinisuchus munizi
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
-Coelognathosuchia
-Tethysuchia
-TethysuchoideaSouza et al. 2019
-Dyrosauridae
genusGuarinisuchusBarbosa et al. 2008
speciesGuarinisuchus muniziBarbosa et al. 2008
Generic NameGuarinisuchus
Scientific NameGuarinisuchus munizi Barbosa et al., 2008
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Guarinisuchus munizispeciesbelongs to Guarinisuchusstated with evidenceBarbosa et al., 2008
Guarinisuchus munizispeciesbelongs to Guarinisuchusstated without evidenceBronzati et al., 2012
Status (PBDB)extinct
Taxon Size (PBDB)1
First Recorded Appearance66.0 - 61.6 Ma
Paleocene
Last Recorded Appearance66.0 - 61.6 Ma
Paleocene
Environmentmarine (based on Mesoeucrocodylia)
Motilityactively mobile (based on Osteichthyes)
Dietcarnivore (based on Pseudosuchia)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)J. A. Barbosa, A. W. A. Kellner, and M. S. S. Viana. 2008. New dyrosaurid crocodylomorph and evidences for faunal turnover at the K–P transition in Brazil. Proceedings of the Royal Society of London B 275:1385-1391
Wikipediahttps://en.wikipedia.org/wiki/Guarinisuchus_munizi

Fossil Distribution

Synonymy List

YearName and Author
2008Guarinisuchus munizi Barbosa et al.
2012Guarinisuchus munizi Bronzati et al.

References

Barbosa J. A., Kellner A. W. A., et al (2008) New dyrosaurid crocodylomorph and evidences for faunal turnover at the K–P transition in Brazil, Proceedings of the Royal Society of London B 275, 1385-1391 doi:10.1098/rspb.2008.0110
Bronzati M., Montefeltro F. C., et al (2012) A species-level supertree of Crocodyliformes, Historical Biology 24 6, 598-606
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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