Ashlock Cemetary, (AG11) (Ordovician of the United States)

Where: Kentucky (37.6° N, 84.6° W: paleocoordinates 27.4° S, 61.4° W)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Oulodus robustus conodont zone, Gilbert Formation, Maysvillian (452.0 - 449.5 Ma)

• Late Maysvillian age. Sample #11 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.

• bed-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; lithified, shelly/skeletal, gray limestone and lithified, silty shale

• Peritidal lagoon. Sequence C3 (from Holland and Patzkowsky, 1996)
• Dark blue-gray, nodular, irregularly bedded limestone interbedded with silty shale.

Size classes: macrofossils, mesofossils

Preservation: mold/impression, recrystallized, original calcite, replaced with calcite

Collection methods: bulk, mechanical,

• Bulk collection made in field and weighed, cleaned, prepped, and identified in lab at University of Cincinnati. Sample dimensions are 198.7 square-cm, weighing 618 grams. At least 12 specimens counted; 7 individuals estimated (using half of total disarticulated specimens with two parts plus number of articulated/intact specimens). Trepostome bryozoans and fragmented trilobites were counted as estimated percent cover using standard percent cover reference chart.

Primary reference: 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]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 64340: authorized by Phil Novack-Gottshall, entered by Phil Novack-Gottshall on 06.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• 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.
Bivalvia
 Colpomyida - Colpomyidae
"? Ischyrodonta ? elongata" = Pseudocolpomya elongata
"? Ischyrodonta ? elongata" = Pseudocolpomya elongata Ulrich 1890 clam
3 disarticulated valves, all internal molds
Rhynchonellata
 Orthida - Platystrophiidae
Platystrophia sp. King 1850
3 brachial valves
 Orthida - Dalmanellidae
"Onniella meeki" = Cincinnetina meeki
"Onniella meeki" = Cincinnetina meeki Miller 1875
1 pedicle valve
 Atrypida - Anazygidae
Zygospira modesta Hall 1847
1 articulated specimen
Stenolaemata
 Trepostomata - Halloporidae
Halloporidae "indet. A" Bassler 1911
Smooth, thick, branching bryozoan colonies, fragmented
Halloporidae "indet. B" Bassler 1911
Smooth, thin, branching halloporid trepostome, fragmented
Trilobita
 Asaphida - Asaphidae
Isotelus maximus Locke 1838 trilobite
Fragments
 Phacopida - Calymenidae
Flexicalymene meeki Foerste 1910 trilobite
Fragments, probably 1-2 individuals represented