lui Cataratta salvare chondrites trace fossil Interessante calcio sessione
trace_fossils
The trace fossil Polykampton recurvum n. isp. (sequestrichnia) from the Maastrichtian–Paleocene deep-sea deposits of NW Italy | Journal of Paleontology | Cambridge Core
A trace fossil primer — Agile Libre
Chondrites Feeding trail of ramifying branches
Ethology of the trace fossil Chondrites: Form, function and environment - ScienceDirect