Phanocrinus alexanderi (specimen 02)

Crinoid crown (P. alexanderi) on hash plate matrix from the Mississippian sub-period

Salix sp. (specimen 01-02)

Willow leaf impressions (Salix sp.) in clay from the Cretaceous period

Petrified rainbow wood (A. arizonicum) from the late Triassic period

Conifer needle impressions (Pinopsida sp.) in clay from the Cretaceous period

Petrified tree bark (Tracheophyta sp.) from the Cretaceous period

Urchin spine (Echinoidea sp.) from the Miocene epoch

Bittersweet clam shell (Glycymeris sp.) from the Pliocene epoch

Marine clam shell (C. arata) from the Pliocene epoch

Extinct honeycomb oyster shell (E. ponderosa) from the late Cretaceous period

Cockle shell (Cerastodermata sp.) from the Miocene epoch