Jon Kramer
- Underprints of vertebrate and invertebrate trackways in the Permian Coconino sandstone in Arizona
1996/04/01 by Leonard R. Brand, Jon Kramer · 15 citations
Earth and Planetary Sciences · #Paleontology and Evolutionary Biology #Evolution and Paleontology Studies #Geological formations and processes #Geology #Paleontology #Permian #Vertebrate #Front (military) #Trace fossil #Invertebrate #Structural basin #Oceanography #Ecology #Biology