Dinosaur trackways from the Upper Cretaceous Nichkesai Formation near Mayluu Suu City, Southern Tien Shan Mountains, north-western Kyrgyzstan

Trackways provide essential data on the biogeographic distribution, locomotion and behaviour of dinosaurs. Cretaceous dinosaur trackways are abundant in the Americas, Europe, North Africa and East Asia, but are less well documented in Central Asia despite extensive exposure of Cretaceous terrestrial...

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Bibliographic Details
Published in:Royal Society open science 2023-05, Vol.10 (5), p.230311
Main Authors: Flannery-Sutherland, Joseph T, Kogan, Ilja, Trubin, Yaroslav S, Falkingham, Peter L, Winkler, Alina, De Sousa, David Donner, Krylov, Kiril D, Pokhaznikova, Anastasia A, Derbisheva, Meerim, Kapitany, Tamas, Dudashvili, Alexey
Format: Article
Language:English
Subjects:
Campanian
dinosaur
Earth and Environmental Science
Kyrgyzstan
Maastrichtian
photogrammetry
tidal flat
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Summary:Trackways provide essential data on the biogeographic distribution, locomotion and behaviour of dinosaurs. Cretaceous dinosaur trackways are abundant in the Americas, Europe, North Africa and East Asia, but are less well documented in Central Asia despite extensive exposure of Cretaceous terrestrial sedimentary rocks in the region. Here we report the presence of bipedal, tridactyl dinosaur trackways near the city of Mayluu Suu, Jalal Abad Oblast, north-western Kyrgyzstan, the first discovery of dinosaur trace fossils within the country. The trackways are situated on a steep slope uncovered by a landslide around the year 2000 in a highly landslide-affected area. Photogrammetry is used to digitally analyse and conserve the trace fossils. We infer a shoreface setting for the trackways based on the locality sedimentology, discuss the identity of the track makers and highlight the potential for future trackway discovery in the area. This discovery contributes vital data to an otherwise sparse record on the spatio-temporal distribution of dinosaurs in Kyrgyzstan, and to the dinosaur trackway record of Central Asia.
ISSN:2054-5703
2054-5703
DOI:10.1098/rsos.230311