Ashlock Cemetary, (ATB): Maysvillian, Kentucky

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Orthocerida - Proteoceratidae
Treptoceras duseri (Hall and Whitfield 1875)
1 individual
1 phragmocone with recrystallized shell
Gastropoda - Bellerophontida - Bellerophontidae
Sphenosphaera ? capax (Ulrich and Scofield 1897)
Novack-Gottshall and Miller 2003 1 individual
1 specimen, partially recrystallized, partially internal mold
Gastropoda - Bellerophontida - Sinuitidae
Sinuites cancellatus (Hall 1847)
Novack-Gottshall and Miller 2003 1 individual
1 internal mold
Gastropoda - Murchisoniina - Lophospiridae
Lophospira bowdeni (Safford 1869)
Novack-Gottshall and Miller 2003 5 individuals
recombined as Paupospira bowdeni
5 internal molds
Gastropoda - Murchisoniina - Eotomariidae
Clathrospira sp. Ulrich and Scofield 1897
Novack-Gottshall and Miller 2003 2 individuals
2 internal molds
Bivalvia - Modiomorphida - Modiomorphidae
Modiolopsis modiolaris (Conrad 1838)
Novack-Gottshall and Miller 2003 4 individuals
7 valves total, all bearing carbonized periostracum
Bivalvia - Myalinida - Ambonychiidae
Ambonychia sp. Hall 1847
Novack-Gottshall and Miller 2003 2 individuals
3 valves total, internal molds
Bivalvia - Ostreida - Pterineidae
Caritodens demissa (Conrad 1842)
Novack-Gottshall and Miller 2003 1 individual
recombined as Pterinea demissa
1 shell, articulated
Rhynchonellata - Orthida - Platystrophiidae
Platystrophia ? ponderosa Foerste 1909
2 individuals
2 brachial valves, 1 pedicle valve, recrystallized
Rhynchonellata - Orthida - Plectorthidae
Hebertella occidentalis (Hall 1847)
1 individual
1 brachial valve, recrystallized
Stenolaemata - Trepostomata - Halloporidae
Halloporidae informal indet. A Bassler 1911
1 %-area
Encrusting halloporid trepostome, fragments
Halloporidae informal indet. B Bassler 1911
3 %-area
Smooth, thick, branching halloporid bryozoans, fragmented
Trilobita - Asaphida - Asaphidae
Isotelus gigas (Dekay 1824)
1 %-area
recombined as Asaphus gigas
Fragments
Trilobita - Phacopida - Calymenidae
Flexicalymene meeki (Foerste 1910)
1 individual
1 articulated specimen
see common names

Geography
Country:United States State/province:Kentucky
Coordinates: 37.6° North, 84.6° West (view map)
Paleocoordinates:27.4° South, 61.4° 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 Graptolite zone: Amplexograptus manitoulinensis
Age range of interval:450.40000 - 449.80000 m.y. ago
Stratigraphy
Formation:Tate
Stratigraphic resolution:bed
Stratigraphy comments: Late Maysvillian age. Sample #B 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. C2.
Lithology and environment
Primary lithology:bioturbation,shelly/skeletal lithified wackestone
Secondary lithology: lithified mudstone
Includes fossils?Y
Includes fossils?Y
Lithology description: Irregularly bedded wackestone and mudstone. Horizontal bioturbation (?Planolites) is present.
Environment:open shallow subtidal Tectonic setting:cratonic basin
Geology comments: Sequence C2 (from Holland and Patzkowsky, 1996)
Taphonomy
Modes of preservation:body,mold/impression,recrystallized,coalified,original calcite,original carbon,replaced with calcite
Size of fossils:macrofossils,mesofossils
Spatial orientation:random
Preservation of anatomical detail:good
Abundance in sediment:common
Articulated whole bodies:some
Associated major elements:some
Disassociated major elements:some
Disassociated minor elements:some
Size sorting:very poor
Fragmentation:occasional
Encrustation:occasional
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:bulk,mechanical,field collection
Collection size:26 specimens
Rock censused:658 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 658.1 square-cm, weighing 2234 grams. At least 26 specimens counted; 21 individuals estimated (using half of total disarticulated specimens with two parts plus number of articulated/intact specimens). Fragmented trepostome bryozoans and 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:Ashlock Cemetary, (ATB), Tate Formation, Kentucky
Database number:64417
Authorizer:P. Novack-Gottshall Enterer:P. Novack-Gottshall
Modifier:P. Wagner Research group:marine invertebrate
Created:2006-09-08 10:40:10 Last modified:2018-04-03 19:38:18
Access level:the public Released:2006-09-08 10:40:10
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:

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]