Geometry and facies dynamics of Middle Jurassic carbonate ramp sandbodies, West-Central Portugal

1998 ◽  
Vol 149 (1) ◽  
pp. 281-314 ◽  
Author(s):  
Ana C. Azerêdo
Keyword(s):  
Middle Jurassic ◽  
Carbonate Ramp ◽  
West Central ◽  
Central Portugal

Sedimentary evolution of middle Jurassic epeiric carbonate ramp Hazara Basin Lesser Himalaya Pakistan

2021 ◽  
Vol 36 (3) ◽  
Author(s):  
Malik Muhammad Saud Sajid Khan ◽  
Qasim Ali Jadoon ◽  
Muhammad Umar ◽  
Ahsan Ali Khan
Keyword(s):  
Middle Jurassic ◽  
Carbonate Ramp ◽  
Lesser Himalaya ◽  
Sedimentary Evolution

scholarly journals New charophytes from the Upper Jurassic of the Lusitanian Basin (Portugal)

2003 ◽  
Vol 22 (2) ◽  
pp. 113-126 ◽  
Author(s):  
Ricardo Pereira ◽  
Monique Feist ◽  
Ana C. Azerêdo
Keyword(s):  
Upper Jurassic ◽  
West Central ◽  
Central Portugal ◽  
Definition Of ◽  
Lusitanian Basin

Abstract. In the Lusitanian Basin (west-central Portugal), Upper Jurassic (Oxfordian) sediments were investigated in order to identify palaeontological assemblages of charophytes. Systematic studies were undertaken on specimens obtained from four field sections (Pedrógão, Vale de Ventos, Memória and Valverde). These studies revealed the presence of new forms of Porocharaceae (Porochara pedunculata n. sp) and of forms previously unknown in this region (Auerbachichara cf. saidakovskyi), as well as P. raskyae, P. minima, P. fusca, P. sulcata, P. kimmeridgensis, Aclistochara longiformis and Porochara sp. Comparison of the charophyte palaeofloras recognized in all of the studied sections has allowed the definition of three different assemblages which, coupled with other data, help to correlate these successions of Early (?) to Middle (Late?) Oxfordian age.

Middle Jurassic corals from the Wallowa terrane, west-central Idaho

1990 ◽  
Vol 64 (3) ◽  
pp. 352-362 ◽  
Author(s):  
George D. Stanley ◽  
Louise Beauvais
Keyword(s):  
North American ◽  
Middle Jurassic ◽  
The North ◽  
Western Cordillera ◽  
West Central ◽  
Wallowa Terrane ◽  
North American Craton ◽  
Central Idaho

New colonial corals from near Pittsburg Landing, Idaho, are clearly dated as Middle Jurassic (Bajocian) in age. They consist of Coenastraea hyatti (Wells) and Thecomeandra vallieri n. sp., and occur abundantly with molluscan fossils in thin, biostromal limestone beds in the Coon Hollow Formation. These fossils are the youngest shelly faunas yet known from the Wallowa terrane. The similarity of the coral and bivalve fauna to endemic faunas of the Western Interior suggests that during Middle Jurassic time, the Wallowa terrane was close enough to the North American craton for faunal exchange with the Western Interior Embayment. The Pittsburg Landing corals appear dissimilar from Middle Jurassic corals known from other terranes of the western Cordillera.

scholarly journals The age of the Tojeira Formation (Late Jurassic, Early Kimmeridgian), of Montejunto, west-central Portugal

2017 ◽  
Vol 136 (2) ◽  
pp. 287-299 ◽  
Author(s):  
Holly E. Turner ◽  
Felix M. Gradstein ◽  
Andy S. Gale ◽  
David K. Watkins
Keyword(s):  
Late Jurassic ◽  
West Central ◽  
Central Portugal

scholarly journals Fossil assemblages and palaeoenvironments in the Cenomanian vertebrate site of Nazaré (West Central Portugal)

2014 ◽  
Vol 273 (2) ◽  
pp. 179-195 ◽  
Author(s):  
Pedro M. Callapez ◽  
Fernando Barroso-Barcenilla ◽  
Oscar Cambra-Moo ◽  
Francisco Ortega ◽  
Adán Pérez-García ◽  
...  
Keyword(s):  
West Central ◽  
Central Portugal ◽  
Fossil Assemblages
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