river bed immediately downstream from the Four Mile Dam on Thunder Bay River: Givetian, Michigan
collected by J. Tyler

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Favositida - Pachyporidae
Thamnopora alpenensis
Stumm 1961
Thamnopora magniventra Stumm 1961
Stumm 1961
Striatopora linneana
Stumm 1961
Gastropoda - Cyrtoneritida - Orthonychiidae
Platyceras (Orthonychia) variablis n. sp. Tyler 1965
recombined as Orthonychia variablis
Gastropoda - Turbinidae
Turbinilopsis anacarina n. sp. Tyler 1965
Gastropoda - Murchisoniina - Murchisoniidae
Mourlonia lirata n. sp. Tyler 1965
recombined as Vladanella lirata
Murchisonia (Murchisonia) subulata n. sp. Tyler 1965
Gastropoda - Murchisoniina - Gosseletinidae
Dictyobembix bella n. gen., n. sp. Tyler 1965
Bembexia (Genuspira) nodosa n. gen., n. sp. Tyler 1965
recombined as Genuspira nodosa
Gastropoda - Murchisoniina - Eotomariidae
Trepospira (Angyomphalus) bella n. sp. Tyler 1965
recombined as Denayella bella
Gastropoda - Euomphalina - Pseudophoridae
Anematina mellaria n. sp. Tyler 1965
recombined as Petrochus mellaria
Anematina conica n. sp. Tyler 1965
recombined as Petrochus conica
Gastropoda - Euomphalina - Euomphalidae
Straparollus (Philoxene) sp. (Kayser 1889)
Gastropoda - Naticopsidae
Naticopsis sp. M'Coy 1844
Tergomya - Scenellidae
? Palaeoscurria sp. Perner 1903
Rhynchonellata - Rhynchonellida - Stenoscismatidae
Atribonium pingue Grant 1965
Grant 1965 44 specimens
USNM 141920-22
see common names

Geography
Country:United States State/province:Michigan County:Alpena
Coordinates: 45.1° North, 83.4° West (view map)
Paleocoordinates:33.3° South, 29.3° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Devonian Epoch:Middle Devonian
Stage:Givetian 10 m.y. bin:Devonian 3
Key time interval:Givetian
Age range of interval:387.70000 - 382.70000 m.y. ago
Stratigraphy
Geological group:Traverse City Formation:Four Mile Dam Member:Upper Limestone Unit
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology:gray argillaceous "limestone"
Lithology description: ... the Four Mile Dam Limestone contains a lower unit of dark gray, slightly argillaceous, coral biomicrite of unknown thickness and an upper unit of beige, crinoidal biosparite up to 4 feet thick. The upper unit is a small, crudely lenticular, crinoidal debris bank (Tyler, J. H., unpublished Ph.D. thesis, University of Michigan, 1963) which contains a rich and varied fauna with numerous species of gastropods, most of which have not been reported from correlative Centerfieldian units elsewhere.
Environment:carbonate indet.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Museum repositories:UMMP
Collectors:J. Tyler
Metadata
Also known as:UM Locality 41 (Stumm 1961)
Database number:85061
Authorizer:P. Wagner, A. Dunhill Enterer:P. Wagner, B. Allen
Modifier:P. Wagner Research group:marine invertebrate
Created:2008-11-24 10:22:43 Last modified:2008-11-25 09:24:12
Access level:the public Released:2008-11-24 10:22:43
Creative Commons license:CC BY
Reference information

Primary reference:
16392. J. H. Tyler. 1965. Gastropods from the Middle Devonian Four Mile Dam Limestone (Hamilton) of Michigan. Journal of Paleontology 39(3):341-349 [P. Wagner/P. Wagner]

Secondary references:

27365 R. E. Grant. 1965. The brachiopod superfamily Stenoscismatacea. Smithsonian Miscellaneous Contributions 148(2):1-192 [M. Clapham/M. Clapham]
28577 E. C. Stumm. 1961. Corals of the Traverse Group of Michigan, Part VI, Cladopora, Striatopora and Thamnopora. Contributions from the Museum of Paleontology 16(4):275-285 [P. Wagner/P. Wagner]