Extinct plant fossils: scale tree, Lepidodendron confluens; Sigillaria sulcata and Sigillaria undulata; and horsetail, Calamites succovii. Handcoloured lithograph by an unknown artist from Dr. F.A. Schmidt's "Petrefactenbuch," published in Stuttgart, Germany, 1855 by Verlag von Krais & Hoffmann. Dr. Schmidt's "Book of Petrification" introduced fossils and palaeontology to both the specialist and general reader.

- Image ID: P55XFR
Extinct plant fossils: scale tree, Lepidodendron confluens; Sigillaria sulcata and Sigillaria undulata; and horsetail, Calamites succovii. Handcoloured lithograph by an unknown artist from Dr. F.A. Schmidt's "Petrefactenbuch," published in Stuttgart, Germany, 1855 by Verlag von Krais & Hoffmann. Dr. Schmidt's "Book of Petrification" introduced fossils and palaeontology to both the specialist and general reader.
Album / Alamy Stock Photo
Image ID: P55XFR