Riojavenatrix
Riojavenatrix | |
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Life restoration
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | Theropoda |
Family: | †Spinosauridae |
Subfamily: | †Baryonychinae |
Genus: | †Riojavenatrix Isasmendi et al., 2024 |
Type species | |
†Riojavenatrix lacustris Isasmendi et al., 2024
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Riojavenatrix (meaning "
, Spain. The type species is Riojavenatrix lacustris. Riojavenatrix represents one of five known spinosaurid taxa from the Iberian Peninsula, the others being Camarillasaurus, Iberospinus, Protathlitis, and Vallibonavenatrix.[1]Discovery and naming
Fossils of Riojavenatrix were discovered in 2005 at the Virgen del Villar-1 site in
The Virgen del Villar-1 site is a part of the Enciso Group, dated as uppermost Barremian–lower Aptian. The age of this site is likely to be lower Aptian. It makes Riojavenatrix younger than Baryonyx, Camarillasaurus, Ceratosuchops, Iberospinus, Riparovenator, and likely Vallibonavenatrix. Although age estimates for Ichthyovenator and Suchomimus are imprecise, Riojavenatrix lived around the same time as them. Riojavenatrix is older than the more derived mid-Cretaceous African and South American spinosaurids.[1]
It was named as a new genus of spinosaurid theropod in 2024. The generic name, Riojavenatrix, comes from La Rioja province in Spain, plus the Latin venatrix, meaning "huntress". The specific name, "lacustris", is Latin for "from the lake".[1]
Classification
Riojavenatrix was assigned to
The following cladograms illustrate the results of the analyzes obtained by the authors of the Riojavenatrix description using different data sets. The first tree shows several alternative positions.[1]
Rauhut & Pol (2021)[2] |
Mateus & Estraviz-López (2022)[3]
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References
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- PMID 35171930.