Piscichnus

{{Short description|Trace fossil}}

Piscichnus is an ichnogenus of representing trace fossils associated with fish activities.

Piscichnus is a large, plug-shaped{{Cite journal |last=Gregory |first=Murray |date=17 Dec 2008 |title=New trace fossils from the Miocene of Northland, New Zealand: Rorschachichnus amoeba and Piscichnus waitemata |journal=Ichnos |volume=1 |issue=3 |pages=195–205 |doi=10.1080/10420949109386352 |url=https://www.tandfonline.com/doi/abs/10.1080/10420949109386352|url-access=subscription }} trace fossil resembling foraging pits created by modern eagle rays. These fossils, found in shallow marine deposits, offer insights into the behavior and ecology of ancient fish.