Also known as Was: Russel Branch, sample 1 (RB1), Waynesville Formation, St. Marys, IN
Where: Indiana (39.4° N, 85.1° W: paleocoordinates 25.3° S, 58.5° W)
• coordinate estimated from map
• hand sample-level geographic resolution
When: Aphelognathus grandis conodont zone, Waynesville Formation, Richmondian (449.6 - 445.5 Ma)
• Middle Richmondian 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.
• bed-level stratigraphic resolution
Environment/lithology: offshore shelf; lithified, burrowed, pyritic, shelly/skeletal claystone and lithified, shelly/skeletal wackestone
Size classes: macrofossils, mesofossils, microfossils
Preservation: cast, mold/impression, adpression, trace, recrystallized, coalified, original calcite, original phosphate, original chitin, original carbon, replaced with calcite, replaced with pyrite
Collection methods: bulk, mechanical,
• Bulk collection made in field and weighed, cleaned, prepped, and identified in lab at University of Cincinnati. Sample weighed 3.744 Kg. 117 specimens counted; 57 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 64170: authorized by Phil Novack-Gottshall, entered by Phil Novack-Gottshall on 03.09.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
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Lingulata | |
Pseudolingula sp. Mickwitz 1909 9 valves, original biomineralization, some articulated and in life position
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Lophophorata | |
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Stenolaemata | |
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Gastropoda | |
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Bivalvia | |
Bivalvia indet. Linnaeus 1758 clam Common, unidentifiable bivalves, probably several species, including those listed above
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Modiolopsis modiolaris Conrad 1838 clam 20 valves total, mostly articulated external molds with carbonized periostracum
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Trilobita | |
Trilobita indet. Walch 1771 trilobite 8 cephala, fragmented; preservation (especially brownish coloration) is similar to that of Isotelus in these rocks
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Flexicalymene meeki Foerste 1910 trilobite 16 disarticulated cephala and cranidia, 10 bodies (missing cephala), 4, pygidia, 1 eyeplate
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Isotelus maximus Locke 1838 trilobite Fragmented trilobites, recrystallized, plus 2 genal spines; probably only 1-2 individuals of this species represented in sample
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Scyphozoa | |
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