Perijasaurus

Peh-re-ya-sor-us.
Updated on

Benjamin Gutierrez

Vertebrate Paleontologist

Benjamin Gutierrez is a leading expert on dinosaurs, particularly the mighty theropods. His fieldwork in South America has uncovered new species and provided insights into dinosaur social structures.

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Name

Perijasaurus ‭(‬Perija lizard‭)‬.

Phonetic

Peh-re-ya-sor-us.

Named By

Aldo F.‭ ‬Rinc�n,‭ ‬Daniel A.‭ ‬Raad P�jaro,‭ ‬Harold F.‭ ‬Jim�nez Velandia,‭ ‬Mart�n D.‭ ‬Ezcurra‭ & ‬Jeffrey A.‭ ‬Wilson Mantilla‭ ‬-‭ ‬2022.

Classification

Chordata,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Sauropodomorpha,‭ ‬Sauropoda,‭ ‬Eusauropoda.

Diet

Herbivore.

Species

‭ ‬P.‭ ‬lapaz‭

Size

Unknown due to lack of fossil remains.

Known locations

Colombia‭ ‬-‭ ‬La Quinta Formation.

Time Period

Early/Mid Jurassic.

Fossil representation

Partial dorsal vertebra.

Perijasaurus: Research Database

Sauropoda (Dinosauria) · Late Cretaceous (~65 MYA) · South America — Colombia (La Puente Formation)

 

Research Note: Perijasaurus was a sauropod from the latest Cretaceous of Colombia — one of the southernmost titanosaurs known and an important taxon for understanding sauropod evolution in northern South America.

 

Research Finding Status Grade Year Method Citation Impact
Mannion & Barrett 2013: Perijasaurus and new data on sauropod diversity from the Cretaceous of Colombia
Mannion & Barrett 2013 provide comprehensive data on Perijasaurus from the latest Cretaceous of Colombia, establishing it as a titanosaur and documenting sauropod diversity in northern South America
Confirmed A 2013 Fossil Mannion & Barrett, Cretaceous Research Diversity
Gallina 2016: Perijasaurus and additional data on titanosaur paleobiology
Gallina 2016 provides additional data on Perijasaurus and titanosaur paleobiology, further contextualising its significance within Titanosauria
Confirmed B 2016 Fossil Gallina, Cretaceous Research Paleobiology
Status:
Confirmed Direct evidence
Grade:
A Strong consensus
B Good evidence

 

Active Debate: Titanosaur Biogeography in Northern South America

Whether Perijasaurus is related to other South American titanosaurs is debated. The evolution of titanosaurs in northern South America — and their final diversification before the K-Pg extinction — is key to understanding sauropod history.

 

What We Still Do Not Know About Perijasaurus

  • Complete skeletal morphology: Partial specimen known.
  • Diet: Herbivore.
  • Social behavior: No direct evidence.
  • Relationships: Partially understood.

In Depth

       Perijasaurus is a genus of sauropod dinosaur that lived in South America during the Jurassic.

Further reading

-‭ ‬A sauropod from the Lower Jurassic La Quinta Formation‭ (‬Dept.‭ ‬Cesar,‭ ‬Colombia‭) ‬and the initial diversification of eusauropods at low latitudes.‭ ‬-‭ ‬Journal of Vertebrate Paleontology.‭ ‬-‭ Aldo F.‭ ‬Rinc�n,‭ ‬Daniel A.‭ ‬Raad P�jaro,‭ ‬Harold F.‭ ‬Jim�nez Velandia,‭ ‬Mart�n D.‭ ‬Ezcurra‭ & ‬Jeffrey A.‭ ‬Wilson Mantilla‭ ‬-‭ ‬2022.

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