Versteinerte Holzscheibe | Arizona, USA Quartz - Ammonites were shell-like cephalopods

- Ammonites were shell-like cephalopods that became extinct about 66 million years ago

resulting in an excellent 3D presentation that showcases its anatomical details with scientific precision

Description: Unusual compact form of a natural selenite mineral specimen

die ebenfalls reichlich detaillierte Fossilien enthält

Versteinerte Holzscheibe | Arizona, USA Quartz - Ammonites were shell-like cephalopodsOrigin: Arizona, USA Size: L52cm W52cm D2cm Description: Araucarioxylon arizonicum from the Triassic period (ca. 220 million years ago) cut in cross section and polished to reveal the rich colors for which this site is so famous, while retaining texture around the edges. Additional information: Petrified wood, fossil formed by the infiltration of minerals into the spaces between and within the cells of natural wood, usually silica (silicon dioxide,