Richfield Springs - Ravena: Lochkovian, New York

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Stauriida - Streptelasmatidae
Enterolasma strictum
Anthozoa - Favositida - Favositidae
Favosites helderbergiae
very common category
Rhynchonellata - Rhynchonellida - Uncinulidae
Uncinulus mutabilis
very common category
Rhynchonellata - Rhynchonellida - Camarotoechiidae
Camarotoechia semiplicata (Conrad 1841)
Rhynchonellata - Athyridida - Meristellidae
Meristella laevis
common category
Meristella praenuntia
Rhynchonellata - Pentamerida - Parastrophinidae
Anastrophia verneuili (Hall 1857)
Rhynchonellata - Pentamerida - Gypidulidae
Gypidula coeymanensis
very common category
Rhynchonellata - Atrypida - Atrypidae
Atrypa reticularis (Linnaeus 1758)
very common category
Rhynchonellata - Spiriferida - Delthyrididae
Howellella cyclopterus
Rhynchonellata - Orthida - Rhipidomellidae
Rhipidomelloides oblata (Hall 1857)
Strophomenata - Strophomenida - Rafinesquinidae
Leptaena rhomboidalis (Wahlenberg 1818)
Strophomenata - Strophomenida - Leptostrophiidae
Leptostrophia planulata
Strophomenata - Strophomenida - Amphistrophiidae
Brachyprion varistriata (Conrad 1842)
common category
Strophomenata - Strophomenida - Strophonellidae
Strophonella punctulifera (Conrad 1838)
common category
Gastropoda - Bellerophontida - Bucaniidae
Tremanotus profundus (Hall 1859)
Trilobita - Phacopida - Dalmanitidae
Odontochile micrurus
Dalmanites litchfieldensis
Rhombifera - Callocystitidae
Lepocrinites gebhardii
see common names

Geography
Country:United States State/province:New York County:Herkimer & Otsego
Coordinates: 42.9° North, 74.8° West (view map)
Paleocoordinates:26.5° South, 56.8° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Devonian Epoch: Early Devonian
Stage: Lochkovian 10 m.y. bin: Devonian 1
Key time interval: Lochkovian
Age range of interval: 419.2 - 410.8 m.y. ago
Stratigraphy
Geological group:Helderberg Formation:Coeymans Member:Ravena
Stratigraphic resolution:member
Lithology and environment
Primary lithology:shelly/skeletal,gray,blue lithified grainstone
Includes fossils?Y
Lithology description: The Ravena consists of very hard, coarse-grained, gray or blue crystalline limestones. It weathers dark gray or brownish and has a rough appearance. Bedding is usually massive, individual layers varying from 10 inches to several feet in thickness. when weathered these massive beds often display a stratification whose bedding planes are quite irregular or "wavy." Scattered throughout the formation are frequent lenses or beds entirely composed of the valves of the brachiopod Gypidula coeymanensis and the columnals of crinoids or cystoids. These are often in such abundance that the rock may be termed a coquinite.
Environment:open shallow subtidal
Taphonomy
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:76757
Authorizer:L. Ivany Enterer:P. Wall
Research group:marine invertebrate
Created:2007-12-02 14:43:19 Last modified:2025-02-22 15:12:02
Access level:the public Released:2007-12-02 14:43:19
Creative Commons license:CC0
Reference information

Primary reference:
25968. L.V. Rickard and D.H. Zenger. 1964. Stratigraphy and Paleontology of the Richfield Springs and Cooperstown Quadrangles, New York. Bulletin of the New York State Museum and Science Service 396:101 [L. Ivany/P. Wall]