Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Ellis L. Yochelson"'
Publikováno v:
Precambrian Research. 180:1-17
A new species of abundant macrofossil, previously described informally as a ‘string of beads’, is here assigned to the genus Horodyskia Yochelson and Fedonkin, 2000, and formally named Horodyskia williamsii. It is known from Mesoproterozoic silic
Publikováno v:
Paläontologische Zeitschrift. 81:118-122
The taxonomic position of a fossil recently found in Givetian strata of the Eifel Mountains, Germany, is discussed. It is a member of the Mollusca, but it is uncertain if it should be assigned to the Cephalopoda or the Scaphopoda. Both possibilities
Autor:
Ellis L. Yochelson
Publikováno v:
The Sedimentary Record. 4:4-8
Autor:
Ellis L. Yochelson
Publikováno v:
Earth Sciences History. 25:251-269
Fieldwork of C. D. Walcott during his U.S. Geological Survey career may be artificially divided into two, intertwined segments, an earlier one concerned mainly with Paleozoic beds, but especially the Cambrian, and a later one involved mainly with str
Autor:
Ellis L. Yochelson
Publikováno v:
Rocky Mountain Geology. 40:157-163
Profile of Rocky Mountain Geologist – a continuing series Charles Doolittle Walcott (1850–1927) (Fig. 1), was a great geologist, along with being a great paleontologist. Anyone who reads nothing more about him than his list of publications (Darto
Publikováno v:
Rocky Mountain Geology. 39:85-91
Since 1860, the record of Jurassic scaphopod mollusks has included Dentalium subquadratum from Wyoming. Restudy of F. B. Meek's type material indicates that the small, arcuate, tapered tubes lack definitive scaphopod characters. Instead, they resembl
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 213:125-132
This paper documents Salterella maccullochi (Murchison) in the Precordillera of western Argentina in the present-day southern hemisphere. The record of these Early Cambrian small conical-shaped fossils, assigned to the extinct phylum Agmata, provides
Publikováno v:
Paläontologische Zeitschrift. 78:97-102
The specimen commonly thought to be the holotype ofDentalium saturni Goldfuss, 1841, does not match the published drawings and is presumed to be spurious. That fossil is incomplete and lacks critical detail to demonstrate that it is a member of the c
Autor:
Ellis L. Yochelson
Publikováno v:
Archives of Natural History. 30:331-341
ABSTRACT: Part and counterpart of a trilobite collected from Upper Ordovician strata near Cincinnati, Ohio, USA, provided additional information on the legs of trilobites. These appendages had only been certainly known for less than a decade. The spe