The Calcare di Cellina (Italian for Cellina Limestone, is a
Hauterivian
The Hauterivian is, in the geologic timescale, an age in the Early Cretaceous Epoch or a stage in the Lower Cretaceous Series. It spans the time between 132.9 ± 2 Ma and 129.4 ± 1.5 Ma (million years ago). The Hauterivian is preceded by the ...
to
Aptian geologic
formation
Formation may refer to:
Linguistics
* Back-formation, the process of creating a new lexeme by removing or affixes
* Word formation, the creation of a new word by adding affixes
Mathematics and science
* Cave formation or speleothem, a secondar ...
in Friulia-Venezia Giulia, Italy.
[Calcare di Cellina]
at Fossilworks.org Fossil
sauropod tracks have been reported from the formation.
[Weishampel et al., 2004, pp.517-607]
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
ostracod
Ostracods, or ostracodes, are a class of the Crustacea (class Ostracoda), sometimes known as seed shrimp. Some 70,000 species (only 13,000 of which are extant) have been identified, grouped into several orders. They are small crustaceans, typi ...
s. 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:
[
;Ichnofossils
* Carnosauria indet.
* Sauropoda indet.
* ?Dinosauria indet.][Venturini, 1995]
;Foraminifera
* '' Campanellula capuensis''
;Flora
* '' Salpingoporella dinarica''[
]
See also
* List of dinosaur-bearing rock formations
This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented.
Containing body fossils
* List of stratigraphic units with dinosaur body fossils
** List of stratigraphic units with ...
** List of stratigraphic units with sauropodomorph tracks
Prosauropods
Sauropods
See also
List of dinosaur-bearing rock formations
This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented.
Containing body fossils
* List of str ...
*** Sauropod tracks
References
Bibliography
*
*
* {{cite LSA , last=Venturini , first=S , year=1995 , title=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) , journal= Natura Nascosta , volume=11 , pages=36–37
Geologic formations of Italy
Lower Cretaceous Series of Europe
Cretaceous Italy
Aptian Stage
Barremian Stage
Hauterivian Stage
Limestone formations
Paludal deposits
Ichnofossiliferous formations
Paleontology in Italy