''Atreipus'' is an
ichnogenus
An ichnotaxon (plural ichnotaxa) is "a taxon based on the fossilized work of an organism", i.e. the non-human equivalent of an artifact. ''Ichnotaxon'' comes from the Ancient Greek (''íchnos'') meaning "track" and English , itself derived from ...
or trace fossil attributed to early Ornithischian dinosaurs. Its significance for Triassic biostratigraphy has earned it some fame.
Reptile footprint faunules from the early Mesozoic Newark Supergroup of eastern North America.
See also
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Ichnology
A trace fossil, also called an ichnofossil (; ), is a fossil record of biological activity by lifeforms, but not the preserved remains of the organism itself. Trace fossils contrast with body fossils, which are the fossilized remains of part ...
References
{{trace-fossil-stub
Ichnotaxa