AMo-1 Greggs Landing Marl: Thanetian, Alabama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa
- Scleractinia
- Oculinidae
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Oculina alabamensis
Vaughan 1900
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7 specimens | |||||||||
Anthozoa
- Scleractinia
- Columastreidae
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Haimesastraea conferta
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45 specimens | |||||||||
original and current combination Haimesiastraea | ||||||||||
Anthozoa
- Scleractinia
- Dendrophylliidae
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Balanophyllia desmophyllum
Milne-Edwards and Haime 1848
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27 specimens | |||||||||
Balanophyllia (Eupsammia) elaborata
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43 specimens | |||||||||
synonym of Balanophyllia | ||||||||||
Anthozoa
- Scleractinia
- Astrocoeniidae
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Madracis gregorioi
Vaughan 1900
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1 specimen | |||||||||
Bivalvia
- Nuculanida
- Nuculanidae
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Calorhadia pharcida
(Dall 1898)
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11 specimens | |||||||||
recombined as Calorhadia (Calorhadia) pharcida | ||||||||||
Bivalvia
- Nuculida
- Nuculidae
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Nucula sp.
Lamarck 1799
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1 specimen | |||||||||
Bivalvia
- Ostreida
- Ostreidae
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Ostrea sinuosa
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30 specimens | |||||||||
Bivalvia
- Pectinida
- Pectinidae
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Chlamys greggi
Harris 1897
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8 specimens | |||||||||
recombined as Dhondtichlamys greggi | ||||||||||
Bivalvia
- Arcida
- Glycymerididae
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Glycymeris idonea
(Conrad 1865)
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11 specimens | |||||||||
original and current combination Axinea idonea | ||||||||||
Glycymeris idonea subsp. | ||||||||||
Bivalvia
- Arcida
- Cucullaeidae
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Cucullaea gigantea
Conrad 1862
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62 specimens | |||||||||
Cucullaea gigantea var. | ||||||||||
Bivalvia
- Arcida
- Arcidae
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Barbatia cuculloides
(Conrad 1833)
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1 specimen | |||||||||
Barbatia cuculloides var. | ||||||||||
Bivalvia
- Carditida
- Carditidae
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Venericardia greggiana
Dall 1903
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4 specimens | |||||||||
recombined as Venericardia (Baluchicardia) greggiana | ||||||||||
Venericardia aposmithi
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6 specimens | |||||||||
Venericardia nanaplata
Gardner and Bowles 1939
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105 specimens | |||||||||
Venericardia nanna | ||||||||||
Bivalvia
- Carditida
- Crassatellidae
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Crassatella tumidula
Whitfield 1865
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1 specimen | |||||||||
Bivalvia
- Hiatellida
- Hiatellidae
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Panopea alabama
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1 specimen | |||||||||
Bivalvia
- Cardiida
- Cardiidae
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Nemocardium harrisi
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6 specimens | |||||||||
Bivalvia
- Cardiida
- Tellinidae
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Tellina greggi
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33 specimens | |||||||||
Tellina trumani
Harris 1897
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2 specimens | |||||||||
Bivalvia
- Cardiida
- Trapezidae
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cf. Oryctomya prima
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1 specimen | |||||||||
spelled with current rank as Coralliophaga (Oryctomya) | ||||||||||
Bivalvia
- Cardiida
- Veneridae
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Pitar nuttalliopsis
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69 specimens | |||||||||
Pitar nuttalliopsis greggi | ||||||||||
Bivalvia
- Pholadida
- Pholadidae
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Pholas alatoidea
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8 specimens | |||||||||
Bivalvia
- Pholadida
- Corbulidae
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Corbula subengonata
Dall 1898
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2 specimens | |||||||||
recombined as Cuneocorbula subengonata | ||||||||||
Scaphopoda
- Gadilida
- Gadilidae
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Cadulus sp.
Philippi 1844
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1 specimen | |||||||||
"Cadulus abruptus" | ||||||||||
Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica greggi
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1 specimen | |||||||||
Architectonica intusa
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1 specimen | |||||||||
Architectonica sp.
Röding 1798
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3 specimens | |||||||||
Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Calyptraea aperta
(Solander 1766)
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9 specimens | |||||||||
recombined as Calyptraea (Trochita) aperta | ||||||||||
Gastropoda
- Rostellariidae
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Calyptraphorus trinodiferus
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123 specimens | |||||||||
Gastropoda
- Aporrhaidae
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Aporrhais aldrichi
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3 specimens | |||||||||
Gastropoda
- Ficidae
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Priscoficus juvenis
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12 specimens | |||||||||
Priscoficus triserialis
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2 specimens | |||||||||
Perissolax eocensis
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1 specimen | |||||||||
Gastropoda
- Neogastropoda
- Turbinellidae
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Fulgurofusus rugatus
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2 specimens | |||||||||
Gastropoda
- Neogastropoda
- Volutidae
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Caricella cf. pyruloides
Conrad 1832
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2 specimens | |||||||||
Athleta tuomeyi
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30 specimens | |||||||||
Gastropoda
- Neogastropoda
- Cancellariidae
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Bonellitia graciloides
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2 specimens | |||||||||
Gastropoda
- Neogastropoda
- Cochlespiridae
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cf. Ancistrosyrinx greggi
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2 specimens | |||||||||
synonym of Cochlespira | ||||||||||
Gastropoda
- Neogastropoda
- Clavatulidae
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Surcula nasuta
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75 specimens | |||||||||
synonym of Turricula | ||||||||||
Gastropoda
- Neogastropoda
- Turridae
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"Pleurotoma" capax
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12 specimens | |||||||||
synonym of Turris | ||||||||||
Hemisurcula silicata
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6 specimens | |||||||||
Lyrosurcula cf. sylvaerupis
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3 specimens | |||||||||
Gastropoda
- Neogastropoda
- Melongenidae
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Cornulina sp.
Conrad 1853
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1 specimen | |||||||||
"Cornulina armigera" | ||||||||||
Levifusus pagodiformis
(Heilprin 1881)
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3 specimens | |||||||||
Gastropoda
- Neogastropoda
- Nassariidae
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Nassarius exilis
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9 specimens | |||||||||
Gastropoda
- Neogastropoda
- Columbellidae
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Astyris cf. subfaxa
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1 specimen | |||||||||
Gastropoda
- Neogastropoda
- Buccinidae
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Cantharus elegantissimus
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22 specimens | |||||||||
cf. Pseudoneptunea harrisi
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7 specimens | |||||||||
Pseudoliva tuberculifera
Conrad 1860
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2 specimens | |||||||||
Gastropoda
- Neogastropoda
- Fasciolariidae
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Lirofusus subtenuis
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5 specimens | |||||||||
Mazzalina tuomeyi
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3 specimens | |||||||||
Gastropoda
- Vermetidae
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Serpulorbis sp.
Sasso 1827
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1 specimen | |||||||||
Gastropoda
- Naticidae
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cf. Natica aperta
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30 specimens | |||||||||
? Sinum sp.
Röding 1798
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1 specimen | |||||||||
Lacunaria alabamiensis
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52 specimens | |||||||||
Euspira marylandica
(Conrad 1865)
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17 specimens | |||||||||
Euspira marylandica var. | ||||||||||
Gastropoda
- Turritellidae
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Mesalia alabamiensis
(De Gregorio 1890)
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34 specimens | |||||||||
Mesalia alabamiensis cf. tetradeiras | ||||||||||
Turritella mortoni
Conrad 1830
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14 specimens | |||||||||
recombined as Kapalmerella mortoni | ||||||||||
Turritella mortoni postmortoni | ||||||||||
Turritella bellifera
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49 specimens | |||||||||
Turritella praecincta
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39 specimens | |||||||||
Gastropoda
- Vasidae
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? Sceptrum perulum
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1 specimen | |||||||||
Chondrichthyes
- Selachii
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Selachii indet.
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2 specimens | |||||||||
teeth | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Alabama | County: | Monroe |
Coordinates: | 31.8° North, 87.4° West (view map) | ||||
Paleocoordinates: | 34.3° North, 70.2° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | small collection |
Time
Period: | Paleogene | Epoch: | Paleocene |
Stage: | Thanetian | 10 m.y. bin: | Cenozoic 1 |
Key time interval: | Thanetian | ||
Age range of interval: | 59.20000 - 56.00000 m.y. ago |
Stratigraphy
Geological group: | Wilcox | Formation: | Tuscahoma | Member: | Greggs Landing Marl |
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: 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. |
Lithology and environment
Primary lithology: | fine,medium,glauconitic,gray,green unlithified silty,calcareous sandstone |
Secondary lithology: | glauconitic unlithified sandy sandstone |
Lithology description: Greggs Landing Marl Member is sand, grayish-green, weathers to brown, massive, fine- to medium grained, silty, calcareous, glauconitic, very fossiliferous. The lower bed contains small particles of lignite and spheroidal calcareous sandstone concretions. | |
Environment: | shallow subtidal indet. |
Taphonomy
Modes of preservation: | body,concretion |
Size of fossils: | mesofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | biostratigraphic analysis |
Metadata
Database number: | 80495 | ||
Authorizer: | A. Miller | Enterer: | J. Sessa |
Modifier: | J. Sessa | Research group: | GCP,marine invertebrate |
Created: | 2008-04-21 12:13:35 | Last modified: | 2018-05-13 15:17:43 |
Access level: | the public | Released: | 2008-04-21 12:13:35 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
124. | 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] |
Secondary references:
34008 | L. C. Ivany, C. Pietsch, J. C. Handley, R. Lockwood, W. D. Allmon and J. A. Sessa. 2018. Little lasting impact of the Paleocene-Eocene Thermal Maximum on shallow marine mollusk faunas. Science Advances [J. Sessa/J. Sessa/J. Sessa] | |
29915 | J. A. Sessa, T. J. Bralower, M. E. Patzkowsky, J. C. Handley, and L. C. Ivany. 2012. Environmental and biological controls on the diversity and ecology of Late Cretaceous through early Paleogene marine ecosystems in the US Gulf Coastal Plain. Paleobiology 38(2):218-239 [M. Patzkowsky/J. Sessa/J. Sessa] | |
28506 | J. A. Sessa, M. E. Patzkowsky, and T. J. Bralower. 2009. Impact of lithification on the diversity, size distribution, and recovery dynamics of marine invertebrate assemblages. Geology 37(2):115-118 [M. Patzkowsky/J. Sessa/J. Sessa] |