 |
 |
 |
|
|
|
|
amphibian
|
Late Mississippian |
|
Whatcheeria
deltae
|
|
Whatcheeria
deltae
|
|
photo of skull |
|
found in
Delta, Iowa, USA
16.4 x 12 cm slab courtesy of John Bolt, Chicago Field Museum |
 |
 |