Where: Monroe County, Alabama (31.8° N, 87.4° W)
• Paleocoordinates: 35.8° N, 60.2° W (Wright 2013)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Greggs Landing Marl Member (Tuscahoma Formation), Thanetian (59.2 - 56.0 Ma)
• The Greggs Landing Marl Member, about 6 feet thick, exposed near the bottom of a high bluff, yields numerous well preserved mollusks and a colonial coral. The Bells Landing Marl Member is exposed near the top of the steep bluff 27 feet higher than the top of the Greggs Landing Marl Member and contains the characteristic large spheroidal concretions and large Ostrea sinuosa, Venericardia aposmithii and Turritella postmortoni and a few other characteristic fossils which fall down the bluff and are mixed with the Greggs Landing fossils.
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; unlithified, fine-grained, medium, glauconitic, gray, green, silty, calcareous sandstone and unlithified, glauconitic, sandy sandstone
Size class: mesofossils
Preservation: concretion
Primary reference: L. D. Toulmin. 1977. Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region. Geological Survey of Alabama, Monograph 13(1):1-602 [M. Patzkowsky/K. Layou/P. Mannion]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 80495: authorized by Arnold Miller, entered by Jocelyn Sessa on 21.04.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
? Sceptrum perulum snail | |
"Calyptraea aperta" = Calyptraea (Trochita) aperta
"Calyptraea aperta" = Calyptraea (Trochita) aperta Solander 1766 slipper shell | |
"Turritella mortoni" = Kapalmerella mortoni, Mesalia alabamiensis, Turritella bellifera, Turritella praecincta
Turritella bellifera turret shell
Turritella praecincta turret shell | |
Serpulorbis sp. Sasso 1827 worm shell | |
Nassarius exilis snail | |
Levifusus pagodiformis Heilprin 1881 snail | |
Lirofusus subtenuis snail
Mazzalina tuomeyi snail | |
Astyris cf. subfaxa snail | |
Pseudoliva tuberculifera Conrad 1860 true whelk
cf. Pseudoneptunea harrisi true whelk
Cantharus elegantissimus true whelk | |
Bonellitia graciloides snail | |
"Surcula nasuta" = Turricula
"Surcula nasuta" = Turricula snail | |
"cf. Ancistrosyrinx greggi" = Cochlespira
"cf. Ancistrosyrinx greggi" = Cochlespira snail | |
Fulgurofusus rugatus snail | |
Athleta tuomeyi volute
Caricella cf. pyruloides Conrad 1832 volute | |
Aporrhais aldrichi snail | |
Bivalvia | |
Crassatella tumidula Whitfield 1865 clam | |
"Venericardia greggiana" = Venericardia (Baluchicardia) greggiana, Venericardia aposmithi, Venericardia nanaplata
"Venericardia greggiana" = Venericardia (Baluchicardia) greggiana Dall 1903 clam | |
"Corbula subengonata" = Cuneocorbula subengonata
"Corbula subengonata" = Cuneocorbula subengonata Dall 1898 clam | |
Pholas alatoidea clam | |
Tellina greggi tellin clam
Tellina trumani Harris 1897 tellin clam | |
Nemocardium harrisi cockle | |
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"cf. Oryctomya prima" = Coralliophaga (Oryctomya)
"cf. Oryctomya prima" = Coralliophaga (Oryctomya) clam | |
Panopea alabama clam | |
Ostrea sinuosa oyster | |
"Chlamys greggi" = Dhondtichlamys greggi
"Chlamys greggi" = Dhondtichlamys greggi Harris 1897 scallop | |
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"Calorhadia pharcida" = Calorhadia (Calorhadia) pharcida
"Calorhadia pharcida" = Calorhadia (Calorhadia) pharcida Dall 1898 pointed nut clam | |
Nucula sp. Lamarck 1799 nut clam | |
Scaphopoda | |
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Chondrichthyes | |
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Anthozoa | |
Madracis gregorioi Vaughan 1900 stony coral | |
Oculina alabamensis Vaughan 1900 stony coral | |
"Haimesastraea conferta" = Haimesiastraea
"Haimesastraea conferta" = Haimesiastraea stony coral | |
"Balanophyllia (Eupsammia) elaborata" = Balanophyllia, Balanophyllia desmophyllum
"Balanophyllia (Eupsammia) elaborata" = Balanophyllia stony coral
Balanophyllia desmophyllum Milne-Edwards and Haime 1848 stony coral |