Fuencaliente de Medinaceli: Longobardian, Spain

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Eosauropterygia - Nothosauridae
Nothosaurus cf. giganteus Münster 1834
UPUAM 14072, partial skeleton
Bivalvia - Trigoniida - Myophoriidae
Costatoria goldfussi (Alberti 1830)
see common names

Geography
Country:Spain State/province:Soria
Coordinates: 41.1° North, 2.5° West (view map)
Paleocoordinates:6.5° North, 11.8° East
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Triassic Epoch:Middle Triassic
Stage:Ladinian 10 m.y. bin:Triassic 2
Key time interval:Longobardian
Age range of interval:239.70000 - 237.00000 m.y. ago
Stratigraphy
Geological group:Upper Muschelkalk Formation:Royuela
Stratigraphy comments: "The vertebrate remains described here where found in the “Fuencaliente de Medina section” (sensu García-Gil, 1990), a geological section located in Fuencaliente de Medinaceli. It is situated in the upper Muschelkalk Facies. This section comprises two Formations, the Tramacastilla Dolostones Formation and the Royuela Dolostones, Marls and Limestones Formation (Pérez-Arlucea and Sopeña, 1985), recording the northwestern-most sedimentation of the large shallow carbonate ramp from eastern Iberia (Escudero-Mozo et al., 2015). The fossil remains were recovered close to the bottom of the last mentioned Formation, within a marl horizon." (de Miguel Chaves et al. 2016)
"...although most of these taxa have a wide chronostratigraphic range (Middle Triassic), the presence of Costatoria goldfussi indicates an upper Ladinian–lower Carnian age. The study of palynological associations, and also the stratigraphic correlation, provide the same age (upper Ladinian–lower Carnian) (García-Gil, 1990; 1991), the boundary between both stages being situated close to the top of the Royuela Dolostones, Marls and Limestones Formation. Therefore, the fossil remains studied here, found at the bottom of this formation, come from the upper Ladinian. " (de Miguel Chaves et al. 2016)
Lithology and environment
Primary lithology: marl
Secondary lithology: dolomite
Includes fossils?Y
Lithology description: "These marls are grey, and appear in layers of about 2 meters thickness, with a typical polyhedral disjunction and nodular aspect. The most abundant sedimentary structures within these marls are parallel and ripple laminations, both of current and wavy type. Interbedded layers, less than 1 meter thick, of micrite dolostones with cryptalgal lamination and desiccation cracks, are also identified." (de Miguel Chaves et al. 2016)
Environment:shallow subtidal indet.
Geology comments: "Dolomitic marls and dolostones constitute shallowing upwards sequences, characteristics from sedimentation in a shallow marine carbonate environment, although they also follow by holding is mixed with carbonate terrigenous sedimentation and the fluvial influx in the North-West sector of the region (García-Gil, 1990). The marls correspond to the subtidal, while the dolostones represent the intertidal to supratidal environments." (de Miguel Chaves et al. 2016)
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:196600
Authorizer:A. Dunhill Enterer:B. Allen
Modifier:M. Carrano
Created:2018-09-26 05:13:15 Last modified:2022-11-09 15:28:05
Access level:the public Released:2018-09-26 05:13:15
Creative Commons license:CC BY
Reference information

Primary reference:
66891. C. de Miguel Chaves, S. García-Gil, F. Ortega, J. L. Sanz, and A. Pérez-García. 2016. First Triassic tetrapod (Sauropterygia, Nothosauridae) from Castilla y León: evidence of an unknown taxon for the Spanish record. Journal of Iberian Geology 42(1):29-38 [A. Dunhill/B. Allen]