Genus: Monquirasaurus Author: Noè and Gómez-Pérez 2021 Taxon status: Classification: Plesiosauria → Pliosauroidea → Pliosauridae → Thalassophonea Locality: Colombia → Boyacá Province → Villa de Leyva (about 5 km WNW of) → Vereda Monquirá Age: Cretaceous → Early Cretaceous → Aptian → Late Aptian Horizon (rock units): Cretaceous → Lower Cretaceous → Albian → Upper Albian → Paja Formation → Arcillolitas Abigarradas Member → Segment V
Etymology: From 'Monquira', the administrative division in which the holotype was discovered
Species: Monquirasaurus boyacensis
Species: Monquirasaurus boyacensis Species status: Referred specimens: None

Monquirasaurus is a giant pliosaurid from Colombia, South America. Originally named by Hampe (1992) as a species of Kronosaurus (K. boyacensis), the skeleton was later allocated to the new genus Monquirasaurus by Noè and Gómez-Pérez (2021).

The genus name derives from ‘Monquira’, the administrative division in which the holotype was discovered.

Monquirasaurus skeleton. From Hampe (1992).
Monquirasaurus reconstruction. From Hampe (1992)
Monquirasaurus reconstruction. From Hampe (1992)