#perijasaurus

[adamworks]

Hi there!

Perijasaurus lapaz from the early jurassic was recently described last month, although it was discovered in 1943, and it’s one of the few dinosaurs found in Colombia

[new-dinosaurs]

Perijasaurus lapaz Rincón et al., 2022 (new genus and species)

(Part of the type vertebra of Perijasaurus lapaz, with broken regions in orange and reconstructed regions or surrounding rock in yellow, from Rincón et al., 2022)

Meaning of name: Perijasaurus = Serranía del Perijá lizard [in Greek]; lapaz = La Paz [town near where the original fossil was discovered]

Age: Early or Middle Jurassic (Toarcian or Aalenian)

Where found: La Quinta Formation, Cesar, Colombia

How much is known: A single back vertebra.

Notes: Perijasaurus was an early sauropod, known from closer to the Equator than any other Early or Middle Jurassic sauropod. The type specimen of this dinosaur had been previously described in 1955, but was left unnamed at the time. Following a reexamination of the fossil, the authors of a new study gave it a name and reinterpreted it in light of what is now known about sauropod diversity. The only known vertebra of Perijasaurus is not as extensively hollow as those of later sauropods, suggesting that it represents an intermediate stage in the evolution of weight-saving features in sauropod vertebrae.

Reference: Rincón, A.F., D.A. Raad Pájaro, H.F. Jiménez Velandia, M.D. Ezcurra, and J.A. Wilson Mantilla. 2022. 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 advance online publication. doi: 10.1080/02724634.2021.2077112

[extinctworld-ua]

Perijasaurus

Perijasaurus — рід базальних динозаврів-еузавроподів із формації Ла-Квінта департаменту Сезар, північно-східна Колумбія. Типовим видом є Perijasaurus lapaz. Він жив на межі тоарсько-аленського віків приблизно 175 мільйонів років тому від раннього до середнього юрського періоду.

Повний текст на сайті "Вимерлий світ":

https://extinctworld.in.ua/perijasaurus/