Petr Hykš:
Prague Synform, cross section model evolution
Petr Hykš:
Moravosilesian unit, Czechia
Petr Hykš:
Cambrian of Barrandien, Central Bohemian (stratigraphy)
Petr Hykš:
Ordovician of Barrandien, Central Bohemian (stratigraphy)
Petr Hykš:
Silurian of Barrandien, Central Bohemian (stratigraphy)
Petr Hykš:
Devonian of Barrandien, Central Bohemian (stratigraphy)
Petr Hykš:
Bohemicum, Czechia
Petr Hykš:
Central and Western Europe, main geological units
Petr Hykš:
Moldanubicum geological unit, Czechia
Petr Hykš:
Outer Western Carpathians, Czechia
Petr Hykš:
Carboniferous and Permian sedimentary cover, Czechia
Petr Hykš:
Near side of the Moon geological map
Petr Hykš:
Far side of the Moon, geological map
Petr Hykš:
Železné hory, Bohemicum
Petr Hykš:
Černá rokle
Petr Hykš:
Upper Silurian, Ludlow-Pridoli boundary (Kopanina Fm. & Požáry Fm.)
Petr Hykš:
Moravosilesian Devonian sedimentary cover
Petr Hykš:
Moravosilesian Devonian sedimentary cover, facies
Petr Hykš:
Moravosilesian Devonian sedimentary cover, stratigraphy
Petr Hykš:
Vilémovice "coral" limestone
Petr Hykš:
Animal phylogeny
Petr Hykš:
Embryophyta systematics (after Hermsen 2019 in The Digital Encyclopedia of Ancient Life)
Petr Hykš:
Evolutionary fauna
Petr Hykš:
Bryozoa diversity in Mesozoic and Kenozoic
Petr Hykš:
Bivalves vs. Brachiopods through time
Petr Hykš:
Porifera diversity
Petr Hykš:
Stromatoporoidea diversity
Petr Hykš:
Diversity of some major Porifera classes
Petr Hykš:
Fossil record of gastropods
Petr Hykš:
Basic cephalopod groups diversity
