Chiaserna - Mt Catria summit road, Maiolica Fm, Bed 145: Early/Lower Valanginian, Italy

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Neocomitidae
Tirnovella cf. alpillensis Mazenot 1939
see common names

Geography
Country:Italy
Coordinates: 43.5° North, 12.7° East (view map)
Paleocoordinates:29.8° North, 18.6° East
Basis of coordinate:estimated from map
Altitude:1100 meters
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Valanginian 10 m.y. bin:Cretaceous 1
Key time interval:Early/Lower Valanginian
Age range of interval:139.80000 - 132.60000 m.y. ago
Stratigraphy
Formation:Maiolica
Local section:Chiaserna - Mt Catria Local bed:145
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: The uppermost Berriasian to lowermost Hauterivian interval is 140 m thick. 307 beds have been sampled, key-numbered 100 to 407 (bottom to top). Only the ammonite bearing beds are listed. Beds 135-183: T. otopeta zone, lower Valanginian
Lithology and environment
Primary lithology:white lithified lime mudstone
Lithology description: The Maiolica Fm is a well - bedded chertbearing mudstone, white in colour.
Environment:offshore indet.
Geology comments: The pelagic Maiolica Fm is part of the succession that was deposited in a structural basin that originated through rifting in the Lower Jurassic.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:65488
Authorizer:M. Aberhan Enterer:S. Nurnberg
Research group:marine invertebrate
Created:2006-09-22 09:17:47 Last modified:2006-09-22 12:17:47
Access level:the public Released:2006-09-22 09:17:46
Creative Commons license:CC BY
Reference information

Primary reference:
18868. P. Faraoni, D. Flore, A. Marini, G. Pallini, and N. Pezzoni. 1997. Valanginian and early Hauterivian ammonite successions in the Mt Catria group (Central Apennines) and the Lessini Mts (Southern Alps), Italy. Palaeopelagos 7:59-100 [M. Aberhan/S. Nurnberg]