UPPER CRETACEOUS PLATFORM-TO-BASIN DEPOSITIONAL–SEQUENCE DEVELOPMENT, TREMP BASIN, SOUTH-CENTRAL PYRENEES, SPAIN

1989 ◽  
pp. 365-378 ◽  
Author(s):  
ANTONIO (TONI) SIMO
Keyword(s):  
Upper Cretaceous ◽  
Depositional Sequence ◽  
South Central ◽  
Central Pyrenees

Dinosaur eggs in the Upper Cretaceous of the Coll de Nargó area, Lleida Province, south-central Pyrenees, Spain: Oodiversity, biostratigraphy and their implications

2013 ◽  
Vol 40 ◽  
pp. 10-20 ◽  
Author(s):  
Albert G. Sellés ◽  
Ana María Bravo ◽  
Xavier Delclòs ◽  
Ferran Colombo ◽  
Xavier Martí ◽  
...  
Keyword(s):  
Upper Cretaceous ◽  
South Central ◽  
Dinosaur Eggs ◽  
Central Pyrenees

Ichnofauna from coastal meandering channel systems (Upper Cretaceous Tremp Formation, South-Central Pyrenees, Spain): delineating the fluvial-tidal transition

2016 ◽  
Vol 90 (2) ◽  
pp. 250-268 ◽  
Author(s):  
Davinia Díez-Canseco ◽  
Luis A. Buatois ◽  
M. Gabriela Mángano ◽  
Margarita Díaz-Molina ◽  
M. Isabel Benito
Keyword(s):  
Upper Cretaceous ◽  
Trace Fossil ◽  
Meandering Channel ◽  
Meandering Channels ◽  
Erosion Processes ◽  
South Central ◽  
Deposit Feeders ◽  
Different Types ◽  
Lowermost Part ◽  
Central Pyrenees

AbstractThe Upper Cretaceous “redbeds” of the lower Tremp Formation (South-Central Pyrenees, Spain) contains an ichnofauna consisting of Taenidium barretti, Taenidium bowni, Loloichnus isp., Arenicolites isp., Planolites isp., and Palaeophycus isp. This ichnofauna occurs in deposits formed in tide-influenced meander loops and their associated overbank mudflats. Evaluation of the taphonomic controls on the Tremp ichnofauna shows that (1) two morphotypes of Taenidium barretti are controlled by the substrate consistence, (2) Arenicolites may be enlarged by erosion processes, and (3) Taenidium barretti and Planolites isp. are not the same ichnotaxa showing different types of preservation. The meniscate fill in Taenidium barretti suggests that this structure was produced by deposit feeders. The Tremp ichnofauna is grouped into two trace-fossil assemblages, a depauperate subaquatic monospecific Planolites suite and an assemblage representing the Scoyenia Ichnofacies. Trace-fossil distribution reflects paleoenvironmental changes in the meandering channels along the stratigraphic section with the Planolites suite in the lowermost part of the lower interval and the Scoyenia Ichnofacies in the middle and upper intervals. The lowermost suite may be likely formed seaward of the maximum salinity limit, under extreme brackish-water conditions, whereas the Scoyenia Ichnofacies records a freshwater assemblage that was formed landward of the maximum salinity limit, reflecting deltaic progradation.

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