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Dino Codex
Hesperornithoides

Image by Scott Hartman​1, Mickey Mortimer2, William R. Wahl3, Dean R. Lomax4, Jessica Lippincott3, David M. Lovelace. · CC BY 4.0 · View on Wikimedia Commons

Hesperornithoides

Omnivore
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There is no write-up for this dinosaur yet, but the scientific data below is complete.

Who lived alongside it

Dinosaurs found in the same rock formation as Hesperornithoides (Morrison), so they lived in the same region at roughly the same time.

Formation data from the Paleobiology Database, counting only each genus's main formations. One formation can span hundreds of thousands to millions of years, so this doesn't mean any two of them ever met.

Scientific details

Classification
Theropod (two-legged predators)
Family
Troodontidae
When it lived
143.1–154.8 million years ago
Geologic stages
Kimmeridgian – Tithonian
Named by
Hartman et al., 2019
Fossil occurrences
1 sites

Countries with fossils

  • United States

Data from Paleobiology Database and Wikidata