Index fossils of North America /

Geahča maid

• Principles of invertebrate paleontology /
  Dahkki: Shrock, Robert Rakes, 1904-, et al.
  Almmustuhtton: (1953)
• Fossils : what they are and how they are preserved [slaid]/
  Dahkki: 362745 Matthews, William H.
  Almmustuhtton: (1978)
• Steorogram book of fossils : photographs of invertebrate fossils in three dimensions ; for stereoscopic viewing in geology, palaentology, biology /
  Dahkki: 286480 Sandberg, Philip A.
  Almmustuhtton: ( 196)
• Invertebrate paleontology /
  Dahkki: Twenhofel, William H. (William Henry), 1875-1957, et al.
  Almmustuhtton: (1935)
• Fossils at a glance /
  Dahkki: 484011 Milsom, Clare, et al.
  Almmustuhtton: (2010)