Petr Hykš:
Porifera fossil
Petr Hykš:
Beautiful porifera fossils (the first 4 specimen probably belong to Pachytilodia or Siphonia genra)
Petr Hykš:
What a surprise! Nice porifera fossil exposed in a stone block
Petr Hykš:
Large Cribrospongia sp. (Porifera) fossil
Petr Hykš:
Amphipora & rugose coral cross-sections
Petr Hykš:
Amphipora & rugose coral cross-sections
Petr Hykš:
Lažánky (amphipora) limestone (Macocha formation)
Petr Hykš:
Vilémovice "coral" limestone
Petr Hykš:
Porifera fossil
Petr Hykš:
Porifera fossil
Petr Hykš:
Porifera fossil
Petr Hykš:
Porifera fossil
Petr Hykš:
Sponge spicule
Petr Hykš:
Sponge spicule
Petr Hykš:
Sponge spicule
Petr Hykš:
Sponge spicule
Petr Hykš:
Porifera
Petr Hykš:
Sponge spicule
Petr Hykš:
Sponge spicule
Petr Hykš:
37
Petr Hykš:
Sponge spicule
Petr Hykš:
Porifera
Petr Hykš:
Sponge spicule
Petr Hykš:
?Craticularia sp.
Petr Hykš:
Porifera
Petr Hykš:
Cnemidiastrium rimulosum
Petr Hykš:
Stromatopora
Petr Hykš:
Sponge biostrome