#Riojavenatrix

[new-dinosaurs]

Riojavenatrix lacustris Isasmendi et al., 2024 (new genus and species)

(Shin and ankle bones [top, scale bars = 10 cm in A–O and 5 cm in P–T], and schematic skeletal by Scott Hartman [bottom], of Riojavenatrix lacustris, with preserved bones in fuchsia on the skeletal, from Isasmendi et al., 2024)

Meaning of name: Riojavenatrix = La Rioja huntress [in Latin]; lacustris = of lakes [in Latin]

Age: Early Cretaceous (probably Aptian)

Where found: Virgen del Villar-1, La Rioja, Spain

How much is known: Partial skeleton of one individual including some of the hindlimbs, fragments of the hips, and a partial back vertebra.

Notes: Riojavenatrix was a spinosaurid, a group of large theropods with specializations for feeding in aquatic habitats. It is one of many Early Cretaceous spinosaurids that have been found in the Iberian Peninsula, along with Vallibonavenatrix, Camarillasaurus, and Protathlitis, which are also from Spain, and Iberospinus from Portugal. Out of these, Riojavenatrix is likely youngest known spinosaurid from this time and region.

Reference: Isasmendi, E., E. Cuesta, I. Díaz-Martínez, J. Company, P. Sáez-Benito, L.I. Viera, A. Torices, and X. Pereda-Suberbiola. 2024. Increasing the theropod record of Europe: a new basal spinosaurid from the Enciso Group of the Cameros Basin (La Rioja, Spain). Evolutionary implications and palaeobiodiversity. Zoological Journal of the Linnean Society advance online publication. doi: 10.1093/zoolinnean/zlad193

[fishsfailureson]

a charcoal drawing of Riojavenatrix from yesterday

[iknowdino]

Episode 484: A New Spinosaurid and a Spinosaurus Swimming Update

I Know Dino Podcast Episode 484: A New Spinosaurid and a Spinosaurus Swimming Update!

Episode 484: A New Spinosaurid and a Spinosaurus Swimming Update. The latest spinosaurid, Riojavenatrix lacustris, was named from Spain; An update on the swimming Spinosaurus debate; And a new mamenchisaurid was named “Jingia”, but a moth has that name so it will be renamed soon. News: There’s a new mamenchisaurid sauropod, “Jingia” dongxingensis, but it will be renamed soon source A new…

[gaetaniu]

Identificata in Spagna una nuova specie di dinosauro spinosauride

Ricostruzione artistica del dinosauro spinosauride Baryonyx. Il paleontologo dell’Università dei Paesi Baschi Erik Isasmendi e i suoi colleghi hanno scoperto un nuovo genere e una nuova specie di dinosauro spinosauride, denominata Riojavenatrix lacustris. Gli Spinosauridi (Spinosauridae) sono una famiglia di grandi dinosauri teropodi conosciuti a partire dal periodo medio-cretaceo. Questi…