Erythrovenator
Erythrovenator | |
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Skeletal reconstruction of Erythrovenator jacuiensis. Known element in white and unknown in gray. | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | Theropoda |
Genus: | †Erythrovenator Müller, 2021 |
Type species | |
†Erythrovenator jacuiensis Müller, 2021
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Erythrovenator (IPA: [eriˈθroʊveˈnator]) is a genus of basal theropod dinosaurs from the Late Triassic of Rio Grande so Sul, Brazil. The genus contains a single species, Erythrovenator jacuiensis.
Discovery
The
The generic name, Erythrovenator, is derived from the Greek word ερυθρός (erythrós), meaning "red" (in reference to the color of the holotype), and the Latin word vēnātor, meaning "hunter." The specific name, jacuiensis, references a nearby river, the Jacuí River.[1]
Description
Although only partially preserved, the femur has an estimated total length of about 190 millimeters (7.5 inches). The femoral head has a strongly concave lower edge, a rounded inner edge, and a distinct anterolateral tuber, all characteristics of dinosaur femora. It also had small anteromedial and posteromedial tubers, with the former structure quite different from the folded anteromedial tuber of other theropods. The rear surface of the femoral head has a thin vertical ridge in its medial portion and a raised scar in its lateral portion, similar to Buriolestes. There is no evidence for a dorsolateral trochanter, unlike all other known Triassic dinosaurs. On the other hand, the anterior trochanter is a prominent pyramidal structure offset from the shaft by a cleft. This is most similar to neotheropods among early dinosaurs, and is also observed in some silesaurids. Although there is no distinct trochanteric shelf, the anterior trochanter does have a plate-like medial extension.[1]
Classification
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