Also known as Hilda siding; Sohl and Koch OFR # 742
Where: Guadalupe County, Texas (29.6° N, 98.1° W: paleocoordinates 35.2° N, 77.1° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Discoscaphites conradi ammonoid zone, Corsicana Marl Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• Haustator bilira assemblage zone
• group of beds-level stratigraphic resolution
Environment/lithology: marine; gray, silty, sandy claystone
Size class: mesofossils
Preservation: original calcite
Collected by L.W. Stephenson; reposited in the USNM
• Stephenson collection
Primary reference: C. W. Cooke. 1953. American Upper Cretaceous Echinoidea. United States Geological Survey Professional Paper 254-A:1-44 [W. Kiessling/U. Merkel/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 4503: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999, edited by Uta Merkel
Creative Commons license: CC BY (attribution)
Taxonomic list
Demospongiae | |
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Gastropoda | |
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Bivalvia | |
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Cucullaea (Idonearca) sp., "Cucullaea (Idonearca) capax" = Idonearca capax
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Pycnodonte belli, Pycnodonte sp., Gryphaeostrea vomer, "Exogyra costata" = Exogyra (Exogyra) costata
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Bryozoa | |
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Echinoidea | |
Linthia variabilis Slocom 1909 heart urchin | |
Hemiaster wetherbyi de Loriol 1887 heart urchin | |