Paleontology in Decline: Making Fossils Live Again Todd A. Radenbaugh, PhD Research Fellow Canadian Plains Research Center Geological Society of America
Muchas especies de plantas son capaces de conservar en su estado de ... los Chinos cultivaron arroz y los Mayas cultivaron el ma z en las llanuras de Yucat n. ...
1 to 4 m of gray fossiliferous shale and inter bedded thin limestone underlain ... Highly fossiliferous. Fossils more abundant in shale. Haney Limestone ...