Earth:Calcare di Cellina

From HandWiki
Short description: Geologic formation in Italy
Calcare di Cellina
Stratigraphic range: Hauterivian-Aptian
~136–113 Ma
TypeGeological formation
Lithology
PrimaryLimestone
Location
Coordinates [ ⚑ ] : 46°12′N 13°18′E / 46.2°N 13.3°E / 46.2; 13.3
Paleocoordinates [ ⚑ ] 29°00′N 21°06′E / 29.0°N 21.1°E / 29.0; 21.1
RegionFriulia-Venezia Giulia
Country Italy
Type section
Named forCellina limestone
Calcare di Cellina is located in Italy
Calcare di Cellina
Calcare di Cellina (Italy)

The Calcare di Cellina (Italian for Cellina Limestone, is a Hauterivian to Aptian geologic formation in Friulia-Venezia Giulia, Italy.[1] Fossil sauropod tracks have been reported from the formation.[2]

Description

The Calcare di Cellina comprises a limestone facies corresponding to the peritidal successions of the inner part of the Periadriatic carbonate platforms. The layer in which the tracks were found is characterized by intertidal muds which were later covered and sealed by a transgressive subtidal layer, representing a moderately more open but low energy environment. Most of the limestone blocks show similar lithofacies, with bed thickness exceeding a metre, the presence of occasional stylolites and rare requienids; the bed surfaces present mud cracks, bioturbation due to burrowing organisms and pedogenetic breccias (sometimes with black pebbles). The color ranges from whitish through light brown to pale pink. The blocks sometimes present desiccation structures (mud cracks, birdseyes) and mostly comprise muddy facies, often with ostracods. In contrast, the level with the footprint is a fossiliferous wackestone (with foraminifers and ostracods), with no traces of subaerial exposure.

Fossil content

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

Ichnofossils
Foraminifera
  • Campanellula capuensis
Flora
  • Salpingoporella dinarica[3]

See also

References

  1. 1.0 1.1 Calcare di Cellina at Fossilworks.org
  2. Weishampel et al., 2004, pp.517-607
  3. 3.0 3.1 Venturini, 1995

Bibliography

  • 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
  • Dalla Vecchia, F. M., and S. Venturini. 1995. A theropod (Reptilia, Dinosauria) footprint on a block of Cretaceous limestone at the pier of Porto Corsini (Ravenna, Italy). Rivista Italiana di Paleontologia e Stratigrafia 101. 93-98.
  • Venturini, S. 1995. Segnalazione di un livello marnoso a characee con presunte impronte di dinosauro nell'Aptiano del M. Bernadia (Nimis, Udine) - Notice of a marly characeous level with presumed dinosaur prints in the Aptian of Monte Bernadia (Nimis, Udine). Natura Nascosta 11. 36–37.