DinosauriaLate TriassicOrnithischiaSouth America

Pisanosaurus mertii

Every month, 100,000 readers use the Dinosaur Database, but we receive no support from you. Developing and updating the database requires a lot of work. Therefore, as of September 1, 2025, the database will be closed. If you want it to remain open and be updated, please support us via the "Buy us a coffee" button available on every page.


Dinosaur: Pisanosaurus mertii

Triassic: 237–227 Ma
Length*:1.6 m5.2 ft
Weight*:5 kg11 lb
ESR: 2 / 4 (estimated size reliability)
*The largest known specimen


Period

Epoch: Late Triassic
Stage: Late Carnian
Years: 237–227 Ma

Details

Status: valid
Author: Casamiquela
Year: 1967

Distribution

Area: South America
Country: Argentina
Region: La Rioja
Formation: Ischigualasto

Classification

Dinosauria
Ornithischia


Locations


Sources

Material: Partial skeleton with skull fragments.
References: Desojo J.B., Fiorelli L.E., Ezcurra M.D. et al. (2020). The Late Triassic Ischigualasto Formation at Cerro Las Lajas (La Rioja, Argentina): fossil tetrapods, high-resolution chronostratigraphy, and faunal correlations.

________________________

If you are interested in Excel Professional version of Dinosaur or Pterosaur Database, write to us


Pterosaur Database