Petr Hykš: Zoophycos isp.
Petr Hykš: Fossilised seabed (ichnofossil)
Petr Hykš: Fossilised seabed (ichnofossil)
Petr Hykš: Fossilised devonian seabed with ichnofossils
Petr Hykš: Ophiomorpha isp.
Petr Hykš: Even traces left after living organisms may become fossilised, we call them ichnofossils
Petr Hykš: Anadara turonica & Oichnus paraboloides gastropod predation
Petr Hykš: Brachiopod with serpulid worms traces and Podichnus isp. trace fossil
Petr Hykš: Chlamys sp. & ichnofossils in jurassic, biodetritic limestone
Petr Hykš: Gastrochaenolites sp.
Petr Hykš: Gastrochaenolites isp.
Petr Hykš: Thalassinoides isp.