Dinopedia - L'encyclopédie des dinosaures

La Quinta

Description

Source: Wikipédia

The La Quinta Formation is a Jurassic geologic formation which crops out in the Cordillera de Mérida and Serranía del Perijá of western Venezuela and northeastern Colombia. The formation is also present in the subsurface of the Cesar-Ranchería and Maracaibo Basins. At its type locality near La Grita, Táchira, it consists of a basal dacitic tuff followed by interlayered sandstones, tuffs, siltstones and rare limestones. Dinosaur remains including Laquintasaura, Tachiraptor, and Perijasaurus are among the fossils that have been recovered from the formation.
U–Pb zircon analysis demonstrates that the formation dates to 200.91+0.55 Ma at its base and a maximum age of 174.8 Ma.

Découvertes

Source: The Paleobiology Database

Site(s) correspondant(s) à cette formation: 3
  • drapeau Colombie Arroyo Lameador, north of the Manaure-La Paz road : ? - ? 7851 9213 23520 55099 55148 77007 77008 82375
  • 12 km E of La Paz, on La Paz-Manaure road, César Valley
  • drapeau Venezuela Rio La Grita : Táchira - La Grita 14786 23520 43397 43931 52146 76455
  • Small road cut across the Rio La Grita from the type section of the formation, which lies along the road between La Grita and Seboruca. Coordinates based on nearby town of La Grita.
  • drapeau Venezuela road cut northwest of La Grita : Táchira - La Grita 57144
  • a secondary road (72°01′06.60 W, 08°09′03.47 N) next to the north of the type-section and about 4 km northwest of the town of La Grita, Jáuregui municipality, Táchira State
    • Tachiraptor admirabilis

Publication(s)

La base comprend 14 publication(s).

Source: The Paleobiology Database

Galerie d'image