Suchergebnisse - Yochelson, Ellis Leon

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 eight assemblages, which are equated with established ammonoid and foraminiferal zones

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 common on coarsely ribbed species

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

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 cephalopods and 2 of trilobites, with comments on their distribution

von Gordon, Mackenzie, Yochelson, Ellis Leon

Paleobiology of climactichnites, an enigmatic late Cambrian fossil

von Yochelson, Ellis Leon, Fedonkin, Michail A.

Permian Gastropoda of the Southwestern United States

von Yochelson, Ellis Leon

Permian Gastropoda of the Southwestern United States

Band 3 - Bellerophontacea and Patellacea : with notes on Pennsylvanian Bellerophontacea

von Yochelson, Ellis Leon

Permian Gastropoda of the Southwestern United States

Band 2 - Pleurotomariacea: Portlockiellidae, Phymatopleuridae, and Eotomariidae

von Yochelson, Ellis Leon