Dinosauria›Reptilia›Ichthyornithes
Ichthyornis Ichthyornis dispar Marsh 1872
/ˈɪkθɪˌɔːɹniz/
estimated
Late Cretaceous (Campanian) · 89.8–72.2 Mya
Key Statistics
Diet
piscivore
Locomotion
flight
Habitat
flying
Environment
marine
Where It Was Found
Countries
United States, Mexico
Regions
Kansas · Alabama · Texas · Coahuila
Formations
Niobrara · Mooreville Chalk · Ector Chalk
Dig sites
22
distinct collections
Overview
Ichthyornis dispar is a theropod dinosaur known from the Late Cretaceous, roughly 89.8–72.2 million years ago. It was a piscivore. It is recorded as flying. Its remains come from marine deposits. Fossils have been recovered from Kansas, United States and elsewhere. It was named by Marsh 1872. 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 Ichthyornis dispar sits in deep time
Ichthyornis
252 Mya201 Mya145 Mya66 Mya
Relationships
Part of a wider fossil web
These species share Ichthyornis dispar'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.