EditorialDiatoms, seaweed Fucoides targioni, conifer tree Araucaria toucasi, foraminifera in chalk, sea urchin Goniopygus major, mollusk Caprina adversa, ammonite cephalopod Ancyloceras matheronanum, and mollusk Spondylus spinosus. Chromolithograph from Dr. Fr....
EditorialAncyloceras, Print, Ancyloceras is an extinct genus of heteromorph ammonites found throughout the world during the Lower Cretaceous, from the Lower Barremian epoch until the genus extinction during the Lower Aptian.
EditorialDiatoms, seaweed Fucoides targioni, conifer tree Araucaria toucasi, foraminifera in chalk, sea urchin Goniopygus major, mollusk Caprina adversa, ammonite cephalopod Ancyloceras matheronanum, and mollusk Spondylus spinosus. Chromolithograph from Dr. Fr....