🦕 Prehistoric World Map

Ambiortus fossil map

Where fossils of Ambiortus have been found, shown on the Earth as it looked about 130 million years ago and on today’s map.

Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 130 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →

GroupTheropods
Lived132.6–121.4 million years ago (Hauterivian to Barremian)
PeriodsCretaceous
Named byKurochkin 1982
Fossil records1 occurrences at 1 locations (PBDB)
Found inMongolia
Rock formationsAndaikhudag

About Ambiortus

Ambiortus is an extinct genus of ornithuromorph dinosaurs. The only known species, Ambiortus dementjevi, lived sometime during the Barremian age between 136.4 and 125 million years ago in the Andaikhudag Formation of Mongolia. It was discovered by Yevgeny Kurochkin in 1982.

Text in “About” is quoted from the Wikipedia article Ambiortus (revision 1379907018), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q4741495.

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