Elesitai, SCDP: Aptian, China
collected 1985-1988

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Equisetopsida - Cheirolepidiaceae
Classopollis sp. Pflug 1953
Russell and Dong 1994
Angiospermae
aff. Angiospermae indet.
Russell and Dong 1994
pollen "of angiospermous affinity"
Pinopsida - Pinales - Taxaceae
Podocarpites sp. Andra 1855
Russell and Dong 1994
Bivalvia
Pelecypoda indet. Goldfuss 1820
Russell and Dong 1994
synonym of Bivalvia
Gastropoda
Gastropoda indet. Cuvier 1795
Russell and Dong 1994
Reptilia
Psittacosaurus sp. Osborn 1923
Russell and Zhao 1996 2 specimens
Alxasaurus elesitaiensis n. gen., n. sp. Russell and Dong 1994
Russell and Dong 1994 2 individuals
IVPP 88402 (large and small individuals) (5 measurements)
Reptilia - Champsosauridae
Champsosauridae indet. Cope 1876
Russell and Dong 1994
Reptilia - Testudines
Testudines indet. Batsch 1788
Russell and Dong 1994
Reptilia - Testudines - Trionychidae
Trionychidae indet. Gray 1825
Russell and Dong 1994
Mammalia
Mammalia indet. Linnaeus 1758
Russell and Dong 1994
Pisces
Pisces indet. Linnaeus 1758
Russell and Dong 1994
synonym of Osteichthyes
"fishes"
see common names

Geography
Country:China State/province:Nei Mongol
Coordinates: 41.2° North, 106.1° East (view map)
Paleocoordinates:42.0° North, 106.2° East
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Aptian 10 m.y. bin:Cretaceous 3
Key time interval:Aptian
Age range of interval:125.00000 - 113.00000 m.y. ago
Stratigraphy
Formation:Bayangobi
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology:fine,gray claystone
Includes fossils?Y
Lithology description: "gray, fine-grained sediments of lacustrine facies"
Environment:lacustrine indet.
Taphonomy
Modes of preservation:body
Degree of concentration:dispersed
Size of fossils:macrofossils,mesofossils,microfossils
Preservation of anatomical detail:good
Associated major elements:many
Disassociated major elements:some
Fragmentation:occasional
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:bulk,selective quarrying,mechanical,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:IVPP
Collection dates:1985-1988
Collection method comments: includes sediment samples by previous geological parties
Metadata
Also known as:Alxa
Database number:46881
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2005-01-24 14:51:51 Last modified:2022-03-23 14:23:59
Access level:the public Released:2005-01-24 14:51:51
Creative Commons license:CC BY
Reference information

Primary reference:

13174.ETE Z.-M. Dong. 1994. The field activities of the Sino-Canadian Dinosaur Project in China, 1987-1990. Canadian Journal of Earth Sciences 30(10-11):1997-2001 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

12452ETE D. A. Russell and Z.-M. Dong. 1994. The affinities of a new theropod from the Alxa Desert, Inner Mongolia, People's Republic of China. Canadian Journal of Earth Sciences 30(10-11):2107-2127 [M. Carrano/M. Carrano/M. Carrano]
12466ETE D. A. Russell and X.-J. Zhao. 1996. New psittacosaur occurrences in Inner Mongolia. Canadian Journal of Earth Sciences 33(4):637-648 [M. Carrano/M. Carrano/M. Carrano]
80958 L. E. Zanno. 2010. A taxonomic and phylogenetic re-evaluation of Therizinosauria (Dinosauria: Maniraptora). Journal of Systematic Palaeontology 8(4):503-543 [M. Carrano/M. Carrano]