Where: Medina County, Texas (29.3° N, 99.1° W)
• Paleocoordinates: 39.2° N, 67.5° W (Wright 2013)
• coordinate stated in text
• small collection-level geographic resolution
When: Haustator bilira other zone, Escondido Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• Haustator bilira assemblage zone.
• group of beds-level stratigraphic resolution
Environment/lithology: estuary or bay; yellow, silty, calcareous sandstone
Size class: mesofossils
Preservation: original calcite, replaced with calcite
Collected by L.W. Stephenson; reposited in the USGS, 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: paleoecologic analysis
PaleoDB collection 4536: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999, edited by Matthew Clapham
Creative Commons license: CC0 (CC0)
Taxonomic list
Demospongiae | |
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Deuteropoda | |
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Bryozoa | |
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Sedentaria | |
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Bivalvia | |
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Gastropoda | |
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Turritella cf. forgemoli, "Turritella (Sohlitella) trilira" = Turritella trilira
Turritella cf. forgemoli turret shell Turritella cf. T. forgemoli Coquan - originally entered as "Turritella cf. forgemoli"
"Turritella (Sohlitella) trilira" = Turritella trilira Conrad 1860 turret shell Turritella (Sohlitella) trilira (C
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Buccinopsis sp. n. sp., Buccinopsis perryi
Buccinopsis sp. n. sp. Conrad 1857 true whelk Buccinopsis n. sp. (smooth and roun - originally entered as "Buccinopsis n. sp."
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Cephalopoda | |
"Sphenodiscus lenticularis" = Sphenodiscus lobatus, Sphenodiscus intermedius, Sphenodiscus pleurisepta
"Sphenodiscus lenticularis" = Sphenodiscus lobatus Tuomey 1856 ammonite Sphenodiscus lenticularis (Owen)
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Echinoidea | |
Rachiosoma hondoensis n. sp.
Rachiosoma hondoensis n. sp. Cooke 1953 sea urchin |