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Meridiosaurus vallisparadisi

Description

Meridiosaurus is an extinct genus of mesoeucrocodylian that is a possible member of the family Pholidosauridae. Remains have been found in the Late Jurassic Tacuarembó Formation in Tacuarembó, Uruguay. The genus was described in 1980 on the basis of a partial rostrum that included the premaxillae and most of the maxillae. The assignment to Pholidosauridae is considered doubtful by some authors, but a 2011 redescription and phylogenetic analysis confirmed the pholidosaurid classification of Meridiosaurus.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4967689https://www.gbif.org/species/4967689
PaleoBioDB ID (PBDB)86579https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=86579
Rankspecies
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Crocodylia : Pholidosauridae : Meridiosaurus : Meridiosaurus vallisparadisi
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Eosuchia : Meridiosaurus : Meridiosaurus vallisparadisi
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
genusMeridiosaurusMones 1980
speciesMeridiosaurus vallisparadisiMones 1980
Generic NameMeridiosaurus
Scientific NameMeridiosaurus vallisparadisi Mones, 1980
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Meridiosaurus vallisparadisispeciesbelongs to Meridiosaurusstated without evidenceMones, 1980
Meridiosaurus vallisparadisispeciesbelongs to Meridiosaurusstated with evidenceFortier et al., 2011
Status (PBDB)extinct
Taxon Size (PBDB)1
First Recorded Appearance157 - 145 Ma
Jurassic
Last Recorded Appearance157 - 145 Ma
Jurassic
Environmentmarine (based on Mesoeucrocodylia)
Motilityactively mobile (based on Osteichthyes)
Dietcarnivore (based on Pseudosuchia)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)A. Mones. 1980. Nuevos elementos de la paleoherpetofauna del Uruguay (Crocodilia y Dinosauria) [New elements of the paleoherpetofauna of Uruguay (Crocodilia and Dinosauria)]. Actas II Congreso Argentino de Paleontologia y Bioestratigrafia y I Congreso Latinoamericano, Buenos Aires 1:265-277
Wikipediahttps://en.wikipedia.org/wiki/Meridiosaurus_vallisparadisi

Fossil Distribution

Synonymy List

YearName and Author
1980Meridiosaurus vallisparadisi Mones pp. 265-266 figs. Pl. 1
2011Meridiosaurus vallisparadisi Fortier et al.

References

Mones A. (1980) Nuevos elementos de la paleoherpetofauna del Uruguay (Crocodilia y Dinosauria) [New elements of the paleoherpetofauna of Uruguay (Crocodilia and Dinosauria)], Actas II Congreso Argentino de Paleontologia y Bioestratigrafia y I Congreso Latinoamericano, Buenos Aires 1, 265-277
Fortier D., Perea D., et al (2011) Redescription and phylogenetic relationships of Meridiosaurus vallisparadisi, a pholidosaurid from the Late Jurassic of Uruguay, Zoological Journal of the Linnean Society 163, S257-S272
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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