Graptoliti

/album/graptoliti/a4-cyrtograptus-sp-kosov-jpg/ Cyrtograptus sp., Kosov X 4 - NOVÉ z 17.8.2017
/album/graptoliti/ix-36-jpg/ Dendroidní graptolit, Kosov IX 36
/album/graptoliti/a58-jpg1/ Monograptus sp., Barrandovy jámy IV.58