Paleobiology of climactichnites, an enigmatic late Cambrian fossil von Yochelson, Ellis Leon, Fedonkin, Michail A.

Paleobiology of climactichnites, an enigmatic late Cambrian fossil von Yochelson, Ellis Leon, Fedonkin, Michail A.

Late Mississippian gastropods of the Chainman Shale, west-central Utah descriptions, geographic and stratigraphic distribution and illustrations of 79 species of gastropods in eigh... von Gordon, Mackenzie, Yochelson, Ellis Leon

Inhaltsverzeichnis

The National Museum of Natural History 75 years in the Natural History Building ; publ. on the occasion of the diamond jubilee of the Natural History Building (1910 - 1985) von Yochelson, Ellis Leon

Predation on sub-Holocene scaphopod mollusks from southern Louisiana boring of scaphopod shells by naticid gastropods, which can be documented back to the Late Cretaceous, is most... von Yochelson, Ellis Leon, Dockery, David, Wolf, Heidi

The early Cambrian fossil Salterella conulata Clark in eastern North America redescription of a stratigraphically useful widespread Cambrian fossil von Yochelson, Ellis Leon

Middle proterozoic (1.5 Ga) Horodyskia moniliformis Yochelson and Fedonkin,the oldest known tissue-grade colonial eucaryote von Fedonkin, Michail A., Yochelson, Ellis Leon

Permian Gastropoda of the Southwestern United States von Yochelson, Ellis Leon

Smithsonian Institution secretary, Charles Doolittle Walcott von Yochelson, Ellis Leon

Charles Doolittle Walcott, paleontologist von Yochelson, Ellis Leon

Inhaltsverzeichnis

Gastropoda, cephalopoda, and trilobita of the Amsden Formation (Mississippian and Pennsylvanian) of Wyoming descriptions and illustrations of 44 taxa of gastropods, 4 of cephalopod... von Gordon, Mackenzie, Yochelson, Ellis Leon

Permian Gastropoda of the Southwestern United States von Yochelson, Ellis Leon

Permian Gastropoda of the Southwestern United States von Yochelson, Ellis Leon