Book Description
Additional title page description: Lithofacies summary and paleogeography of Bois Blanc correlatives in eastern North America and description of silicified brachiopods from New York.
Author : Arthur James Boucot
Publisher :
Page : 56 pages
File Size : 48,45 MB
Release : 1968
Category : Brachiopoda, Fossil
ISBN :
Additional title page description: Lithofacies summary and paleogeography of Bois Blanc correlatives in eastern North America and description of silicified brachiopods from New York.
Author : William Albert Oliver
Publisher :
Page : 18 pages
File Size : 30,65 MB
Release : 1967
Category : Geology
ISBN :
Additional title page description: Description of little-known limestone formation of Early Devonian age in western New York.
Author : Arthur James Boucot
Publisher :
Page : 25 pages
File Size : 49,6 MB
Release : 1969
Category : Borings
ISBN :
Description of little-known limestone formation of Early Devonian age in western New York.
Author : Howard R. Feldman
Publisher :
Page : 96 pages
File Size : 40,73 MB
Release : 1985
Category : Brachiopoda, Fossil
ISBN :
"Thirty-nine species of brachiopods from central and southeastern New York are systematically described. This monograph is based upon 7030 specimens collected from 30 localities and includes silicified as well as nonsilicified faunas. The following members of the Onondaga Limestone were sampled: Edgecliff, Nedrow, Moorehouse, and Seneca. The Onondaga thickens considerably toward the east with the greatest net change occurring in the Moorehouse Member (19 ft. near Syracuse to 92 ft. at Saugerties). The Seneca Member disappears just east of Cherry Valley and is not found in any strata of the mid-Hudson Valley. Crinoid columnals up to about 1 inch in diameter are characteristic of the Edgecliff Member across the state but become less abundant in the east. Brachiopod diversity is greatest in the Moorehouse Member and least in the Edgecliff Member. Of the 26 species of brachiopods in the underlying Bois Blanc Formation in western New York, nine occur in the Onondaga and show no evolutionary change. Morphologic variability in the Onondaga faunas was greater laterally than vertically. For the species studied here, the high degree of stasis in the Bois Blanc-Onondaga (Emsian-Eifelian) time interval may support a punctuational model as an evolutionary mode. During Eifelian time the faunas found in central and southeastern new York belonged to the Appohimchi Subprovince of the Eastern Americas Realm and were part of the larger suite extending westward across the continent. The Onondagan brachiopods reviewed here were provincial in character with the following genera endemic to the Appohimchi Subprovince: Charionoides, 'Pacificocoelia, ' and Pentagonia. Atribonium halli and Discomyorthis? sp. are the only species described herein not previously reported from Onondaga strata. No new species or genera were erected"--Page 293
Author : Howard R. Feldman
Publisher : Paleontological Research Inst
Page : 56 pages
File Size : 21,39 MB
Release : 1994-01-01
Category : Science
ISBN : 9780877104322
In the Genesee Valley of western New York, the Moorehouse Member of the Onondaga Limestone contains 46 species of brachiopods, described herein. Of the 26 species of brachiopods in the underlying Bois Blanc Formation in Western New York, 11 also occur in the Onondaga and show no evolutionary change between it and the Onondaga Formation; that is, taxa found in the Bois Blanc-Onondaga interval indicate a high degree of stasis. During Onondaga time there was a progressive increase in relative water depth throughout the basin as indicated by a gradual northward shift of the carbonate facies as well as a northward migration of the overlying Hamilton Group. The Nedrow Member represents a minor transgressive cycle due to an influx of mud from the east, and the Moorehouse Member to Seneca Member interval represents a major transgression. Brachiopods in the Moorehouse Member include Charionoides and Pentagonia, genera endemic to the Appohimchi Subprovince. Atribonium halli and Discomyorthis? sp. are the only species herein not previously reported from Onondaga strata in western New York. Two new species are erected, Athyris boucoti and A. leoni. The most significant change in brachiopod faunas across the state during Moorehouse time is the increasing abundance of stropheodontids towards the west.
Author :
Publisher :
Page : 444 pages
File Size : 27,18 MB
Release : 1975
Category : Geology
ISBN :
Author :
Publisher :
Page : 640 pages
File Size : 24,8 MB
Release : 1974
Category : Geology
ISBN :
Author : Geological Survey (U.S.)
Publisher :
Page : 58 pages
File Size : 37,25 MB
Release : 1968
Category :
ISBN :
Author : Anita G. Epstein
Publisher :
Page : 512 pages
File Size : 12,16 MB
Release : 1967
Category : Formations (Geology)
ISBN :
"A description and partial revision of the physical stratigraphy and interpretations of depositional environments."--T.p.
Author : Arthur James Boucot
Publisher : Geological Society of America
Page : 132 pages
File Size : 40,38 MB
Release : 1969
Category : Brachiopoda, Fossil
ISBN : 0813721199