Tereñes Formation

The Tereñes Formation or Tereñes Marl is a Late Jurassic (Kimmeridgian) geologic formation in Asturias, Spain. The grey marls of the formation were deposited in a lagoonal environment at a muddy coast along a temporary inland sea. The lower section of the formation comprises silty and chalky sandstones with desiccation cracks and ripple marks, then becomes a bituminous, prominently ostracod-bearing, pelecypod shell chalk, lime chalk marl and marl.[1] Fossil sauropod tracks have been reported from the formation.[2]

Tereñes Formation Stratigraphic range: Kimmeridgian ~155–151 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Lithology
Primary	Marl
Other	Sandstone
Location
Coordinates	43.5°N 5.2°W / 43.5; -5.2
Approximate paleocoordinates	35.6°N 7.0°E / 35.6; 7.0
Region	Asturias
Country	Spain
Tereñes Formation (Spain) Show map of Spain Tereñes Formation (Asturias) Show map of Asturias

Fossil content

The following fossils were reported from the formation:[1]

Dinosaurs

• Theropoda indet.[3]
• ?Allosauroidea indet.[3]
• Neosauropoda indet.[4]
• Ankylopollexia indet.[4]

Crocodylimorphs

• Dakosaurus sp.[5]
• cf. Machimosaurus sp.[6]

Ichnofossils

• Gigantosauropus asturiensis[7]
• Hispanosauropus hauboldi[7]

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with sauropodomorph tracks
    • Sauropod tracks
• Lastres Formation, contemporaneous ichnofossiliferous formation of Asturias
• Vega Formation, contemporaneous ichnofossiliferous formation of Asturias

References

1. Tereñes Formation at Fossilworks.org
2. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
3. Ruiz Omeñaca et al., 2012
4. Ruiz Omeñaca et al., 2007
5. Ruiz Omeñaca et al., 2010
6. Young et al., 2014
7. Mensink & Mertmann, 1984

Bibliography

• Young, M.T.; S. Hua; L. Steel; D. Foffa; S.L. Brusatte; S. Thuring; O. Mateus; J.I. Ruiz Omeñaca, and P. Havlik, Y. Lepage, and M.B. Andrade. 2014. Revision of the Late Jurassic teleosaurid genus Machimosaurus (Crocodylomorpha, Thalattosuchia). Royal Society Open Science 1. 140222.
• Ruiz Omeñaca, J.I.; L. Piñuela, and J.C. García Ramos. 2012. Primera descripción de dientes de dinosaurios terópodos en la Formación Tereñes (Kimmeridgiense), Asturias (First description of theropod dinosaur teeth in the Tereñes Formation (Kimmeridgian), Asturias). Geogaceta 52. 177-180.
• Ruiz Omeñaca, J.I.; L. Piñuela, and J.C. García Ramos. 2010. Dakosaurus sp. (Thalattosuchia: Metriorhynchidae) en el Kimmeridgiense de Colunga (Asturias), 193-199. Comunicaciones del V Congreso del Jurásico de España.
• Ruiz Omeñaca, J.I.; J.I. Canudo; L. Piñuela, and J.C. García Ramos. 2007. Dientes de dinosaurios carnívorous (Saurischia: Theropoda) del Jurásico Superior de Asturias (Teeth of carnivorous dinosaurs (Saurischia: Theropoda) from the Upper Jurassic of Asturias), 95-97. IV Jornadas Internacionales sobre Paleontología de Dinosaurios y su Entorno, Salas de los Infantes, Spain.
• Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2
• Mensink, H., and D. Mertmann. 1984. Dinosaurier-Fährten (Gigantosauropus asturiensis n. g. n. sp.; Hispanosauropus hauboldi n. g. n. sp.) im Jura Asturiens bei La Griega und Ribadesella (Spanien). Neues Jahrbuch für Geologie und Paläontologie Monatshefte 7. 405-415.