| Lastres Formation | |
|---|---|
| Stratigraphic range: Kimmeridgian-Tithonian | |
| Type | Geologic group |
| Overlies | Tereñes Formation |
| Thickness | 400 meters[1] |
| Lithology | |
| Primary | Sandstone, conglomerate[1] |
| Other | Mudstone[1] |
| Location | |
| Coordinates | 43°30′N 5°30′W / 43.5°N 5.5°W |
| Approximate paleocoordinates | 35°48′N 6°48′E / 35.8°N 6.8°E |
| Region | Asturias |
| Country |  Spain |
  Lastres Formation (Spain)  Lastres Formation (Asturias) | |
The Lastres Formation is a geological formation located in Asturias province, northwestern Spain. It is believed to have been deposited in a fluvial-dominated deltaic system.[1]
Fossil tracks have been reported from the formation, including those of dinosaurs, pterosaurs, crocodiles, turtles, and lizards.[2]
- ^ a b c d Philippe, Marc; Billon-Bruyat, Jean-Paul; Garcia-Ramos, Jose C.; Bocat, Loïc; Gomez, Bernard; Piñuela, Laura (January 2010). "New occurrences of the wood Protocupressinoxylon purbeckensis Francis: implications for terrestrial biomes in southwestern Europe at the Jurassic/Cretaceous boundary". Palaeontology. 53 (1): 201–214. Bibcode:2010Palgy..53..201P. doi:10.1111/j.1475-4983.2009.00926.x. S2CID 129026651.
- ^ Rauhut, Oliver W. M.; Piñuela, Laura; Castanera, Diego; García-Ramos, José-Carlos; Cela, Irene Sánchez (2018-07-05). "The largest European theropod dinosaurs: remains of a gigantic megalosaurid and giant theropod tracks from the Kimmeridgian of Asturias, Spain". PeerJ. 6: e4963. doi:10.7717/peerj.4963. ISSN 2167-8359. PMC 6035862. PMID 30002951.