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Mierasaurus âśť

Description

Mierasaurus is an extinct genus of sauropod dinosaur from the Early Cretaceous of Utah, United States. The taxon was first described and named in 2017 by Rafael Royo-Torres and colleagues, from a mostly complete skeleton including a disarticulated partial skull and mandible, teeth, multiple vertebrae from along the length of the body, both scapulae, radius and ulna bones, a left manus, a complete pelvis, both femora and the entire left hindlimb. Additionally, they also referred a lower jaw and femur from juvenile individuals, which were found nearby, to the genus. Collectively, Mierasaurus is among the most completely known North American sauropods. The genus name honours Bernardo de Miera y Pacheco, the first European scientist to enter what is now Utah. The type species for Mierasaurus is Mierasaurus bobyoungi, named after Robert Glen Young, a paleontologist who researched the Early Cretaceous of Utah.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)9599972https://www.gbif.org/species/9599972
PaleoBioDB ID (PBDB)362685https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=362685
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Dinosauria : Mierasaurus
Taxonomy (PBDB)Life : Animalia : Chordata : Saurischia : Mierasaurus
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
informalAvemetatarsaliaBenton 1999
-OrnithodiraGauthier 1986
-DinosauromorphaBenton 1985
-DinosauriformesNovas 1992
-Dinosauria
-Saurischia
-EusaurischiaPadian et al. 1999
-Sauropodomorpha
-MassopodaYates 2007
-SauropodiformesMartinez et al. 2011
-Sauropoda
-EusauropodaUpchurch 1995
-TuriasauriaRoyo-Torres et al. 2006
genusMierasaurusRoyo-Torres et al. 2017
Scientific NameMierasaurus Royo-Torres et al., 2017
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Mierasaurusgenusbelongs to Turiasauriastated with evidenceRoyo-Torres et al., 2017
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance129 - 125 Ma
Early/Lower Cretaceous
Last Recorded Appearance129 - 125 Ma
Early/Lower Cretaceous
Environmentterrestrial (based on Sauropoda)
Motilityactively mobile (based on Sauropoda)
Dietherbivore (based on Sauropoda)
Reproductionoviparous, dispersal=direct/internal,mobile (based on Sauropoda)
Ontogenyaccretion,modification of parts (based on Sauropoda)
Taphonomyhydroxylapatite,compact or dense,thick (based on Sauropoda)
Primary Reference (PBDB)R. Royo-Torres, P. Upchurch, and J. I. Kirkland, D. D. DeBlieux, J. R. Foster, A. Cobos, L. Alcalá. 2017. Descendants of the Jurassic turiasaurs from Iberia found refuge in the Early Cretaceous of western USA. Scientific Reports 7:14311:1-12
Wikipediahttps://en.wikipedia.org/wiki/Mierasaurus

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Mierasaurus bobyoungi âśť
species
accepted (GBIF)
listed (PBDB)
1129 Ma
Early/Lower Cretaceous
129 Ma
Early/Lower Cretaceous

Synonymy List

YearName and Author
2017Mierasaurus Royo-Torres et al.
2019Mierasaurus Mannion et al.

References

Royo-Torres R., Upchurch P., et al (2017) Descendants of the Jurassic turiasaurs from Iberia found refuge in the Early Cretaceous of western USA, Scientific Reports 7, 14311:1-12 doi:10.1038/s41598-017-14677-2
Mannion P. D., Upchurch P., et al (2019) Taxonomic affinities of the putative titanosaurs from the Late Jurassic Tendaguru Formation of Tanzania: phylogenetic and biogeographic implications for eusauropod dinosaur evolution, Zoological Journal of the Linnean Society 185 3, 784-909 doi:10.1093/zoolinnean/zly068/5300162
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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