Blesa Formation

Blesa Formation
Stratigraphic range: Barremian
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TypeGeological formation
Unit ofMaestrazgo Basin
Sub-units
  • Upper Blesa Sequence - Valdejunco Member
  • Middle Blesa Sequence - Josa Member
  • Lower Blesa Sequence - Cabezo Gordo Member, Morenillo member
UnderliesAlacón Formation
OverliesUnconformity with Jurassic strata
ThicknessUp to 150 m
Lithology
PrimaryClay, Marl, Limestone
OtherConglomerate
Location
RegionEurope

Distribution of the Belsa Formation within the Oliete Sub-Basin (in olive)

The Blesa Formation is a geological formation in Teruel and La Rioja, Spain whose strata date back to the Barremian of the Early Cretaceous.[1] Dinosaur remains as well as eggs[2] are among the fossils that have been recovered from the formation.[3] Along with the fragmentary anhanguerian pterosaur Iberodactylus.[4] While the lower and upper parts of the formation were deposited in a continental setting, the middle portion of the formation is largely nearshore marine, with remains of plesiosaurs.

  1. ^ Aurell, M.; Soria, A. R.; Bádenas, B.; Liesa, C. L.; Canudo, J. I.; Gasca, J. M.; Moreno-Azanza, M.; Medrano-Aguado, E.; Meléndez, A. (June 2018). "Barremian synrift sedimentation in the Oliete sub-basin (Iberian Basin, Spain): palaeogeographical evolution and distribution of vertebrate remains". Journal of Iberian Geology. 44 (2): 285–308. Bibcode:2018JIbG...44..285A. doi:10.1007/s41513-018-0057-3. S2CID 134667628.
  2. ^ Moreno-Azanza, Miguel; Canudo, José Ignacio; Gasca, José Manuel (September 2014). "Spheroolithid eggshells in the Lower Cretaceous of Europe. Implications for eggshell evolution in ornithischian dinosaurs". Cretaceous Research. 51: 75–87. Bibcode:2014CrRes..51...75M. doi:10.1016/j.cretres.2014.05.017.
  3. ^ Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Europe)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. p. 561. ISBN 0-520-24209-2.
  4. ^ Holgado, Borja; Pêgas, Rodrigo V.; Canudo, José Ignacio; Fortuny, Josep; Rodrigues, Taissa; Company, Julio; Kellner, Alexander W. A. (December 2019). "On a new crested pterodactyloid from the Early Cretaceous of the Iberian Peninsula and the radiation of the clade Anhangueria". Scientific Reports. 9 (1): 4940. Bibcode:2019NatSR...9.4940H. doi:10.1038/s41598-019-41280-4. PMC 6426928. PMID 30894614. {{cite journal}}: |last6= has generic name (help)