|
Placenticeras meeki
|
|
|
LANDMAN, NEIL H., TSUJITA, CAMERON J., COBBAN, WILLIAM A., LARSON, NEAL L., TANABE, KAZUSHIGE & FLEMMING, ROBERTA L., 2006, Jaws of Late Cretaceous Placenticeratid Ammonites: How Preservation Affects the Interpretation of Morphology, American Museum Novitates 3500, pp. 1-48
: 7-29
|
7-29 |
|
Placenticeras costatum
|
|
|
LANDMAN, NEIL H., TSUJITA, CAMERON J., COBBAN, WILLIAM A., LARSON, NEAL L., TANABE, KAZUSHIGE & FLEMMING, ROBERTA L., 2006, Jaws of Late Cretaceous Placenticeratid Ammonites: How Preservation Affects the Interpretation of Morphology, American Museum Novitates 3500, pp. 1-48
: 29
|
29 |
|
Placenticeras
|
|
|
KENNEDY, W. J., LANDMAN, N. H. & COBBAN, W. A., 2001, Santonian Ammonites from the Blossom Sand in Northeast Texas, American Museum Novitates 3332, pp. 1-10
: 4-7
|
4-7 |
