Also known as Betterton; USGS # 30253
Where: Kent County, Maryland (39.3° N, 76.0° W: paleocoordinates 40.0° N, 51.8° W)
• small collection-level geographic resolution
When: Discoscaphites conradi ammonoid zone, upper Member (Severn Formation), Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• Haustator bilira assemblage zone
• member-level stratigraphic resolution
Environment/lithology: marine; glauconitic, gray, argillaceous sandstone
Size class: macrofossils
Reposited in the USGS
Collection methods: bulk,
• Sohl collection
Primary reference: N. F. Sohl and C. F. Koch. 1987. Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf. USGS Open File Report 87-194:1-172 [M. Kosnik/M. Kosnik]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 4376: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Polychaeta | |
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Sedentaria | |
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Cephalopoda | |
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Scaphopoda | |
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Bivalvia | |
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Syncyclonema simplicius scallop Syncylonema simplicus (Conrad) - originally entered as "Syncylonema simplicius"
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"Ostrea mesenterica" = Lopha mesenterica
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"Cucullaea (Idonearca) capax" = Idonearca capax
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Gastropoda | |
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"Turritella (Sohlitella) bilira" = Haustator bilira Stephenson 1941 turret shell Turritella (Sohlitella) bilira (St
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"Actaeon cicatricosus" = Acteon
"Actaeon cicatricosus" = Acteon snail Acteon cicatricosus Sohl - originally entered as "Acteon cicatricosus"
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Deuteropoda | |
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unclassified | |
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