Lajasvenator
genus of reptiles (fossil)
Lajasvenator (meaning "Las Lajas hunter" after the city of Las Lajas in Neuquén, Argentina) is a genus of carcharodontosaurid dinosaur from the Mulichinco Formation from Neuquén Province in Argentina. The type and only species is Lajasvenator ascheriae. It was probably one of the smaller known Carcharodontosaurids, being slightly more than half the length of Concavenator, about 3.5 m (11 ft).
Lajasvenator is known from two specimens, MLL-PV-005 (the holotype) and MLL-PV-007 (a referred specimen). The referred specimen includes the proximal end of a cervical rib that is identical to the seventh cervical rib of the holotype. It is possible that the early evolutionary stage for the Carcharodontosauridae started with medium-sized predators like Lajasvenator that later diversified into the heavily-built taxa such as Giganotosaurus and Mapusaurus. Lajasvenator is the oldest carcharodontosaur known from the Cretaceous of South America and is a key taxon for understanding the clade's evolutionary history.
Classification
In their 2020 description of Lajasvenator, Coria et al. found it to be a carcharodontosaurid in a clade with Eocarcharia and Concavenator. In their description of Meraxes, Canale et al.
The public source identifies “Lajasvenator” as genus of reptiles (fossil). This brief keeps that definition visible, then builds a research path around Lajasvenator, genus and reptiles.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Dec 23, 2025. The linked authority identifier is Q76508453. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2020.
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This entry incorporates text from “Lajasvenator” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.