Christ Hospital, (CHS1): Maysvillian, Ohio

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Crinoidea
Crinoidea indet. Miller 1821
1 %-area
3 columnals, approximately 1% coverage by area
Stenolaemata - Cryptostomata
Cryptostomata indet. Vine 1884
1 %-area
Thin, sheet-branching cryptostomate bryozoan, fragmented
Stenolaemata - Trepostomata - Halloporidae
Halloporidae informal indet. A Bassler 1911
3 %-area
Monticulated, large, thick halloporid trepostome, fragmented
Halloporidae informal indet. B Bassler 1911
10 %-area
Smooth, thin, branching halloporid trepostome, fragmented
Rhynchonellata - Atrypida - Anazygidae
Zygospira modesta (Hall 1847)
57 individuals
57 complete, articulated specimens
Rhynchonellata - Orthida - Platystrophiidae
Platystrophia sp. King 1850
2 individuals
3 indeterminate valves, disarticulated
Platystrophia crassa James 1874
Klingensmith 2007
1 individual
Rhynchonellata - Orthida - Plectorthidae
Hebertella occidentalis (Hall 1847)
4 individuals
4 brachial valves
Hebertella occidentalis (Hall 1847)
Klingensmith 2007
1 individual
Strophomenata - Strophomenida - Rafinesquinidae
Rafinesquina alternata (Conrad 1838)
5 individuals
5 pedicle valves
Bivalvia - Myalinida - Ambonychiidae
Ambonychia sp. Hall 1847
Novack-Gottshall and Miller 2003 4 individuals
7 disarticulated valves, internal molds
Bivalvia - Ostreida - Pterineidae
Caritodens demissa (Conrad 1842)
Novack-Gottshall and Miller 2003 1 individual
recombined as Pterinea demissa
1 recrystallized valve
Bivalvia - Modiomorphida - Modiomorphidae
Modiolopsis modiolaris (Conrad 1838)
Novack-Gottshall and Miller 2003 1 individual
2 valves, internal molds, disarticulated
Gastropoda - Murchisoniina - Lophospiridae
Lophospira bowdeni (Safford 1869)
Novack-Gottshall and Miller 2003 26 individuals
recombined as Paupospira bowdeni
26 internal molds; count only includes specimens with more than two whorls
Trilobita - Phacopida - Calymenidae
Calymenidae indet. Milne-Edwards 1840
1 individual
1 cephalon
Flexicalymene meeki (Foerste 1910)
2 specimens
2 body fragments (articulated pleurites), 1 pygidium, 1 cephalon
see common names

Geography
Country:United States State/province:Ohio
Coordinates: 39.1° North, 84.5° West (view map)
Paleocoordinates:26.2° South, 60.2° West
Basis of coordinate:estimated from map
Geographic resolution:hand sample
Time
Period:Ordovician Epoch:Late/Upper Ordovician
Stage:Katian 10 m.y. bin:Ordovician 5
Key time interval:Maysvillian Conodont zone: Amorphognathus superbus
Age range of interval:450.40000 - 449.80000 m.y. ago
Stratigraphy
Formation:Miamitown
Stratigraphic resolution:bed
Stratigraphy comments: Lower Maysvillian age. Sample #1 collected. Details on stratigraphy and sedimentation (lithology), and additional details of gastropod and bivalve fauna are included from Novack-Gottshall and Miller (2003) [PBDB reference #18186] and field notes.
Lithology and environment
Primary lithology:shelly/skeletal lithified packstone
Includes fossils?Y
Lithology description: Gastropod-rich packstone/wackestone
Environment:deep subtidal shelf Tectonic setting:cratonic basin
Geology comments: Sequence C2 (from Holland and Patzkowsky, 1996)
Taphonomy
Modes of preservation:body,mold/impression,recrystallized,original calcite,replaced with calcite
Size of fossils:macrofossils,mesofossils
Spatial orientation:random
Preservation of anatomical detail:good
Abundance in sediment:abundant
Articulated whole bodies:some
Associated major elements:some
Disassociated major elements:some
Disassociated minor elements:some
Size sorting:very poor
Fragmentation:occasional
Encrustation:none
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:bulk,mechanical,field collection
Collection size:113 specimens
Rock censused:1052 cm2 (area)
Reason for describing collection:paleoecologic analysis
Collection method comments: Bulk collection made in field and weighed, cleaned, prepped, and identified in lab at University of Cincinnati. Sample dimensions are 1051.6 square-cm. At least 113 specimens counted; 103 individuals estimated (using half of total disarticulated specimens with two parts plus number of articulated/intact specimens). Fragmented trepostome bryozoans, crinoid columnals, and fragmented trilobites were counted as estimated percent cover using standard percent cover reference chart.
Taxonomic list comments:Representative samples (standards) of species used for taxonomic identification reference are stored at the University of Cincinnati. Many unidentifiable bivalves are not included in taxonomic list.
Metadata
Also known as:Was: Christ Hospital, (CHS1), Miamitown Shale, Cincinnati, Ohio
Database number:64421
Authorizer:P. Novack-Gottshall, A. Stigall Enterer:P. Novack-Gottshall, A. Stigall
Modifier:P. Wagner Research group:marine invertebrate
Created:2006-09-08 11:37:09 Last modified:2018-03-31 23:55:56
Access level:the public Released:2006-09-08 11:37:09
Creative Commons license:CC BY
Reference information

Primary reference:
18187. P. M. Novack-Gottshall. 1999. Comparative geographic and environmental diversity dynamics of gastropods and bivalves during the Ordovician Radiation (M.S. thesis, University of Cincinnati). 1-191 [P. Novack-Gottshall/P. Novack-Gottshall/P. Novack-Gottshall]

Secondary references:

25360 B. C. Klingensmith. 2007. GIS-based biogeography of Cincinnatian (Upper Ordovician) brachiopods with special reference to Hebertella. [A. Stigall/A. Stigall]
18186 P. M. Novack-Gottshall and A.I. Miller. 2003. Taxonomic richness and abundance of Late Ordovician gastropods and bivalves in mollusc-rich strata of the Cincinnati Arch. Palaios 18:559-571 [P. Novack-Gottshall/P. Novack-Gottshall]