Dinosauria›Ornithischia
Silhouette unavailable

Nanosaurus Nanosaurus agilis Marsh 1877

/nˌænoʊsˈɔːɹəs/ estimated
Late Jurassic · 157.9–143.1 Mya

Key Statistics

Diet
herbivore
Locomotion
Unknown
Habitat
ground-dwelling
Social
herding

Where It Was Found

Country
United States
Regions
Wyoming · Colorado
Formation
Morrison
Dig sites
4
distinct collections
Recorded finds in United States. Present-day positions: the continents have moved since.

Overview

Nanosaurus agilis is a dinosaur known from the Late Jurassic, roughly 157.9–143.1 million years ago. It was a herbivore. It is recorded as ground-dwelling and herding. Fossils have been recovered from Wyoming, United States. It was named by Marsh 1877. The species is represented by 26 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~65%
well attested
Based on 26 recorded occurrences in the Paleobiology Database.

Geologic Time

Where Nanosaurus agilis sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Nanosaurus
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

These species share Nanosaurus agilis's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology. Predator–prey pairs additionally have to have been dug up in the same place.

same–clade
Enigmacursor
Enigmacursor mollyborthwickae
View profile →
same–clade
Chilesaurus
Chilesaurus diegosuarezi
View profile →
same–clade
Fruitadens
Fruitadens haagarorum
View profile →
same–clade
Minimocursor
Minimocursor phunoiensis
View profile →