Lastres Formation

Lastres Formation
Lastres Formation
Stratigraphic range: Kimmeridgian-Tithonian
Type	Geologic group
Overlies	Tereñes Formation
Thickness	400 meters
Lithology
Primary	Sandstone, conglomerate
Other	Mudstone
Location
Coordinates	43°30′N5°30′W / 43.5°N 5.5°W
Approximate paleocoordinates	35°48′N6°48′E / 35.8°N 6.8°E
Region	Asturias
Country	Spain
	Lastres Formation (Spain) Lastres Formation (Asturias)

Last updated September 29, 2025

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 content

Color key

Taxon	Reclassified taxon	Taxon falsely reported as present	Dubious taxon or junior synonym	Ichnotaxon	Ootaxon	Morphotaxon

Notes
Uncertain or tentative taxa are in small text; ~~crossed out~~ taxa are discredited.

Pterosaurs

Pterosaurs
Genus	Species	Presence	Notes	Images
Pteraichnus ^[3]		* Present at the Quintueles, Oles, Tazones, and Luces sites; all in Asturias, Spain.^[3]	* Quintueles, Oles, and Tazones specimens housed at the Jurassic Museum of Asturias, Spain. Luces specimens remain in the field.^[3]

Plants

Plants
Genus	Species	Presence	Material	Notes	Images
Ricciopsis	R. asturicus	^[4]		A liverwort.

Correlation

Early Cretaceous stratigraphy of Iberia
Ma	Age	Paleomap \ Basins	Cantabrian	Olanyà	Cameros	Maestrazgo	Oliete	Galve	Morella	South Iberian	Pre-betic	Lusitanian
100	Cenomanian		La Cabana	Sopeira	Utrillas		Mosquerela					Caranguejeira
			Altamira		Utrillas
			Eguino
125	Albian		Ullaga - Balmaseda	Lluçà						Traiguera
			Monte Grande		Escucha		Escucha			Jijona
			Itxina - Miono		Escucha
	Aptian		Valmaseda - Tellamendi		Ol Gp. - Castrillo	Benassal		Benassal				Olhos
			Valmaseda - Tellamendi	Font	En Gp. - Leza	Morella /Oliete	Oliete	Villaroya	Morella	Capas Rojas		Almargem
			Patrocinio - Ernaga	Senyús	En Gp. - Jubela	Forcall				Villaroya	Upper Bedoulian	Figueira
	Barremian		Vega de Pas	Cabó	Abejar	Xert	Alacón	Xert		Huérguina	Upper Bedoulian	Assises
				Prada	Abejar	Artoles				Collado	Moutonianum	Papo Seco
				Rúbies	Tera Gp. - Golmayo	Alacón/Blesa	Blesa	Camarillas	Mirambel	Collado	Moutonianum	Papo Seco
150	Hauterivian				Ur Gp. - Pinilla	Llacova	Blesa	Castellar	Tera Gp. - Pinilla	Villares		Porto da Calada
						Llacova	hiatus			Villares
						Huerva			Gaita
	Valanginian		Villaro		Ur Gp. - Larriba				Ped Gp. - Hortigüela
					Ped Gp. - Hortigüela				Ped Gp. - Piedrahita
					Peñacoba			Galve		Miravetes
	Berriasian		Cab Gp. - Arcera		Valdeprado	hiatus		Alfambra		Miravetes
					TdL Gp. - Rupelo			Arzobispo	hiatus	Tollo
					On Gp. - Huérteles Sierra Matute			Arzobispo		Tollo
	Tithonian		Lastres		Tera Gp. - Magaña		Higuereles			Tera Gp. - Magaña		Lourinhã
					Tera Gp. - Magaña				Arzobispo
					Ágreda				Arzobispo
Legend		Major fossiliferous , oofossiliferous , ichnofossiliferous , coproliferous , minor formation
Sources

References

1 2 3 4 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 . hdl: 10651/7327 . 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.
1 2 3 Lockley, M.; Harris, J.D.; and Mitchell, L. 2008. "A global overview of pterosaur ichnology: tracksite distribution in space and time." Zitteliana. B28. p. 187-198. ISSN 1612-4138.
↑ Santos, Artai A.; Sender, Luis Miguel; Piñuela, Laura; García-Ramos, Jose Carlos; Diez, José B. (2022-09-27). "First evidence of Ricciaceae in the Jurassic of the Iberian Peninsula (Asturias, NW Spain): Ricciopsis asturicus sp. nov". Botany Letters. 169 (4): 557–567. Bibcode:2022BotL..169..557S. doi:10.1080/23818107.2022.2124452. ISSN 2381-8107. S2CID 252575717.

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[:0-1] 1 2 3 4 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 . hdl: 10651/7327 . S2CID 129026651.

[2] 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.

[Lockleyetal2008-3] 1 2 3 Lockley, M.; Harris, J.D.; and Mitchell, L. 2008. "A global overview of pterosaur ichnology: tracksite distribution in space and time." Zitteliana. B28. p. 187-198. ISSN 1612-4138.

[4] Santos, Artai A.; Sender, Luis Miguel; Piñuela, Laura; García-Ramos, Jose Carlos; Diez, José B. (2022-09-27). "First evidence of Ricciaceae in the Jurassic of the Iberian Peninsula (Asturias, NW Spain): Ricciopsis asturicus sp. nov". Botany Letters. 169 (4): 557–567. Bibcode:2022BotL..169..557S. doi:10.1080/23818107.2022.2124452. ISSN 2381-8107. S2CID 252575717.

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