ammonites

Aulie, Mikhailovka, Karatau: Oxfordian - Kimmeridgian, Kazakstan

Where & when
Geology
Taphonomy & methods
Metadata & references
Geography
Country:Kazakstan State/province:South Kazakhstan
Coordinates: 43.0° North, 69.0° East (view map)
Paleocoordinates:41.1° North, 72.5° East
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Jurassic Epoch:Late/Upper Jurassic
10 m.y. bin:Jurassic 5
Key time interval:Oxfordian - Kimmeridgian
Age range of interval:161.2 - 150.8 m.y. ago
Stratigraphy
Formation:Karabastau
Stratigraphy comments: "These beds, often referred to as the 'rybnye slantsy' (= fish shales), form part of the upper sequence of the Karabastau Formation and have been dated as early Late Jurassic on the basis of plant remains"
Lithology and environment
Primary lithology:very fine,gray "shale"
Includes fossils?Y
Lithology description: "extremely fine grained, grey bituminous paper shales"
Environment:lacustrine - large Tectonic setting:intermontane basin
Geology comments: "a long, narrow, intermontane lake"
Taphonomy
Modes of preservation:body,soft parts
Lagerstätten type:conservation
Size of fossils:macrofossils,mesofossils,microfossils
Preservation of anatomical detail:excellent
Abundance in sediment:abundant
Articulated whole bodies:many
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:survey of museum collection,selective quarrying
Reason for describing collection:general faunal/floral analysis
Museum repositories:PIN
Taxonomic list comments: Many invertebrates, plants and other vertebrates are reported, but it is not clear which are from this particular loclaity and which are from the broader Karatau fauna
Metadata
Also known as:Sordes & Batrachognathus holotype sites
Database number:92136
Authorizer:R. Butler Enterer:R. Butler
Modifier:R. Butler Research group:vertebrate
Created:2009-11-02 04:58:42 Last modified:2009-11-02 05:22:10
Access level:the public Released:2009-11-02 04:58:42
Reference information
Primary reference:
30958 N. N. Bakhurina and D. M. Unwin. 1995. a survey of pterosaurs from the Jurassic and Cretaceous of the former Soviet Union and Mongolia. Historical Biology 10:197-245 [R. Butler/R. Butler]

Secondary references:

31032 D. M. Unwin and N. N. Bakhurina. 2000. Pterosaurs from Russia, Middle Asia and Mongolia. In M. J. Benton, M. A. Shishkin, D. M. Unwin, E. N. Kurochkin (eds.), The Age of Dinosaurs in Russia and Mongolia. Cambridge University Press, Cambridge 420-433 [R. Butler/R. Butler]