Skip to Main Content
Skip Nav Destination
GEOREF RECORD

Eocene conchostracans from the Laney Member of the Green River Formation, Wyoming, USA

Shen Yan-Bin, Oscar F. Gallego, H. Paul Buchheim and Roberto E. Biaggi
Eocene conchostracans from the Laney Member of the Green River Formation, Wyoming, USA
Journal of Paleontology (May 2006) 80 (3): 447-454

Abstract

Two new species of conchostracans, Cyclestherioides wyomingensis and Prolynceus laneyensis, belonging to the Cyclestheriidae and Lynceidae, respectively, are described from the Eocene Laney Member of the Green River Formation of Wyoming, USA. These are the first Cenozoic fossil conchostracans to be formally reported from North America. Cyclestherioides wyomingensis has a close affinity to the extant Cyclestheria hislopi. The latter is a pan-tropical species, found between approximately 30 degrees N and 35 degrees S. Thus, Cyclestherioides may indicate that the Laney Member was deposited in a subtropical setting. The conchostracans and associated fauna of the Laney Member suggest that this member was deposited nearshore in a shallow lake. The concept of Cyclestherioides is emended and some fossil species referred to this genus are revised.


ISSN: 0022-3360
EISSN: 1937-2337
Coden: JPALAZ
Serial Title: Journal of Paleontology
Serial Volume: 80
Serial Issue: 3
Title: Eocene conchostracans from the Laney Member of the Green River Formation, Wyoming, USA
Affiliation: Chinese Academy of Sciences, Nanjing Institute of Geology and Palaeontology, Nanjing, China
Pages: 447-454
Published: 200605
Text Language: English
Publisher: Paleontological Society, Lawrence, KS, United States
References: 74
Accession Number: 2006-061560
Categories: Invertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Includes appendix
Illustration Description: illus. incl. 1 plate, geol. sketch map
N41°06'00" - N41°06'00", W109°35'60" - W109°35'60"
Secondary Affiliation: Consejo de Investigaciones Cientificas y Tecnicas, ARG, ArgentinaLoma Linda University, USA, United StatesUniversidad Adventista del Plata, ARG, Argentina
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, The Paleontological Society. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 200635
Close Modal

or Create an Account

Close Modal
Close Modal