Petr Hykš: Naturhistorisches Museum Wien
Petr Hykš: Smilodon, saber-toother tiger
Petr Hykš: Phylloceras heterophyllum
Petr Hykš: Theodoxus sp. gastropod shells with original ornamentation preserved
Petr Hykš: Opalised Sphenodiscus shell
Petr Hykš: Phylloceras heterophyllum (left) and ammonite with in-situ aptychus (right)
Petr Hykš: Oreodon culbertsoni
Petr Hykš: Aeschnogomphus intermedius
Petr Hykš: Lycyaena chaeretis
Petr Hykš: Scarpaena prior
Petr Hykš: Keasius parvus
Petr Hykš: Otodus megalodon
Petr Hykš: Otodus megalodon
Petr Hykš: Colonial coral
Petr Hykš: Bivalve
Petr Hykš: Astropecten sp. starfish
Petr Hykš: Bed full of sea urchin fossils
Petr Hykš: Cyclurus kehreri
Petr Hykš: Amazed by fish fossils
Petr Hykš: Moonfish fossil
Petr Hykš: Campanile giganteum gastropod shells
Petr Hykš: Amazed by gastropod shells
Petr Hykš: Phorusrhacidae "terror bird"
Petr Hykš: With Pavel & Zdeněk in NHM Wien
Petr Hykš: Placenticeras placenta
Petr Hykš: Comptoniaster michaelisi
Petr Hykš: Pachyophis woodwardi
Petr Hykš: Schizorhiza stromeri
Petr Hykš: Amazed by "birds"
Petr Hykš: Early birds