Where: Bayankhongor, Mongolia (45.5° N, 99.5° E: paleocoordinates 46.7° N, 100.3° E)
• coordinate based on political unit
• small collection-level geographic resolution
When: Andaikhudag Formation, Hauterivian to Hauterivian (132.9 - 125.0 Ma)
• "Bööntsagaan Gorizont, Neocomian... at least older than the Aptian... Shuvalov (1982, and this volume) assigned the Khurilt and Kholboot beds to the Andaikhudag Formation that he dated as Hauterivian-Barremian"
Environment/lithology: terrestrial; lithified, sandy shale
•clearly lithified and much more likely a shale than a sandstone based on preservation of specimen
Size class: macrofossils
Preservation: adpression, soft parts
Reposited in the PIN
Primary reference: E. N. Kurochkin. 2000. Mesozoic birds of Mongolia and the former USSR. In M. J. Benton, M. A. Shishkin, D. M. Unwin, & E N. Kurichkin (eds.), The Age of Dinosaurs in Russia and Mongolia 533-559 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 85287: authorized by John Alroy, entered by John Alroy on 09.12.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
| Aves | |
Ambiortus dementjevi n. gen. n. sp.
| |