PRI 2749, Stone City Bluff: Lutetian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gymnolaemata - Cheilostomata - Orbituliporidae
Schizorthosecos interstitia
Dockery 1980
Cephalopoda - Nautilida - Aturiidae
Aturia brazoensis (Stenzel 1935)
Bivalvia - Nuculanida - Nuculanidae
Yoldia (Orthoyoldia) psammotaea Dall 1898
Harris 1919
recombined as Orthoyoldia psammotaea
Adrana aldrichiana (Harris 1895)
Yoldia (Calorhadia) compsa (Gabb 1860)
Harris 1919
Bivalvia - Cardiida - Tellinidae
Tellina mooreana Gabb 1860
Harris 1919
recombined as Tellina (Eurytellina) mooreana
Bivalvia - Poromyida - Verticordiidae
Verticordia (Trigonulina) satex
original and current combination Trigonulina
Bivalvia - Carditida - Crassatellidae
Crassatella antestriata Gabb 1860
Gastropoda - Eulimidae
Balcis exilis
Balcis tenua
Gastropoda - Atlantidae
Atlanta eocenica
Gastropoda - Strombidae
Ectinochilus texanum
synonym of Rimella
Gastropoda - Ranellidae
Distorsio (Personella) septemdentata Gabb 1860
recombined as Sassia (Personella) septemdentata
Gastropoda - Ficidae
Ficopsis texana
synonym of Ficus
Gastropoda - Neogastropoda - Cancellariidae
Trigonostoma penrosei
Trigonostoma babylonicum Lea 1833
Bonellitia parilis
Coptostoma rameum
Gastropoda - Neogastropoda - Costellariidae
Pyramimitra terebraeformis (Conrad 1848)
original and current combination Mitra terebraeformis
Gastropoda - Neogastropoda - Cochlespiridae
Cochlespira bastropensis
Cochlespira engonata Conrad 1865
Gastropoda - Neogastropoda - Clavatulidae
Turricula (Plentaria) plenta
Turricula (Plentaria) plenta and Turricula (Plentaria) plenta horrida
Gastropoda - Neogastropoda - Conidae
Glyptotoma conradiana
Conus (Lithoconus) sauridens (Conrad 1833)
original and current combination Conus sauridens
Gastropoda - Neogastropoda - Turridae
Hesperiturris nodocarinatus Gabb 1860
Coronia genitiva Casey 1904
recombined as Gemmula (Coronia) genitiva
Trypanotoma longispira
Eucheilodon reticulata
Awateria retifera Gabb 1860
Cochlespirella nana
Scobinella reticulatoides
Michela trabeatoides Harris 1895
Gastropoda - Neogastropoda - Borsoniidae
Microdrillia aldrichiella
Gastropoda - Neogastropoda - Columbellidae
Mitrella (Bastropia) bastropensis
Gastropoda - Neogastropoda - Buccinidae
Bolis enterogramma
Buccitriton informal sp. B
Buccitriton texanum
Buccitriton sagenum (Conrad 1833)
Gastropoda - Neogastropoda - Fasciolariidae
"Falsifusus" perobliquus
Gastropoda - Neogastropoda - Mitridae
Mitra (Fusimitra) perexilis
original and current combination Fusimitra
Volvaria reticulata Johnson 1899
Gastropoda - Neogastropoda - Marginellidae
Marginella (Dentimargo) constrictoides
Gastropoda - Neogastropoda - Muricidae
Hexaplex (Hexaplex) silvaticus (Palmer 1937)
Gastropoda - Neogastropoda - Volutidae
Athleta wheelockensis
Athleta wheelockensis bastropensis
Athleta lisbonensis
Athleta lisbonensis crockettensis
Bullata semenoides
spelled with current rank as Closia (Bullata)
Gastropoda - Naticidae
Natica spp.
Gastropoda - Tornidae
Teinostoma texanum Palmer 1937
Gastropoda - Vitrinellidae
Cyclostremiscus exacuus
[entered as Cyclostremiscus exacus]
Gastropoda - Epitoniidae
Scalina trapaquara
Gastropoda - Turritellidae
Turritella dumblei Harris 1895
recombined as Kapalmerella dumblei
Turritella infans Stenzel 1940
recombined as Haustator infans
Mesalia claibornensis
Turritella houstonia
Gastropoda - Opisthobranchia - Retusidae
cf. Rhizorus volutatus
Rhizorus loisae
Gastropoda - Heterostropha - Pyramidellidae
Pyramidella bastropensis
Pyramidella pseudopymaea
[entered as Pyramidella pseudopygmaea]
Odostomia trapaquara
Pyramidella (Syrnola) propeacicula
original and current combination Syrnola
Gastropoda - Heterostropha - Acteonidae
Acteon pomilius
Acteon pomilius punctatus
Gastropoda - Heterostropha - Ringiculidae
Ringicula trapaquara
Gastropoda - Heterostropha - Architectonicidae
Pseudomalaxis plummerae
Architectonica vespertina
Gastropoda - Heterostropha - Mathildidae
Gegania antiquata
Gegania antiquata and Gegania antiquata striata
Gastropoda - Skeneidae
Tiburnus texanus
see common names

Geography
Country:United States State/province:Texas County:Burleson
Coordinates: 30.6° North, 96.5° West (view map)
Paleocoordinates:32.7° North, 85.6° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Eocene
Stage:Lutetian 10 m.y. bin:Cenozoic 2
Key time interval:Lutetian
Age range of interval:47.80000 - 41.20000 m.y. ago
Stratigraphy
Geological group:Claiborne Formation:Crockett Member:Stone City
Stratigraphic resolution:group of beds
Stratigraphy comments: The age of strata exposed at Stone City Bluff is established using biostratigraphy and radiometric dating of volcanic ash beds in the overlying Wheelock Member of the Crockett Formation. Calcareous nannoplankton indicates an age of biochronozone NP16 (Yancey and Davidoff, 1991, p. 80) and planktic foraminifers indicate deposition during the Morozovella lehneri (P12) or Orbulinoides beckmanni (P13) zones (Gaskell, 1989). A 25 cm thick volcanic ash bed present in overlying strata of the Crockett Formation, about 15 m above the Moseley bed (Kersey and Stanton, 1979), has an 40Ar/39Ar radiometric date of 41.841 ± 0.016 Ma (Heintz et al., 2015). The ash-bearing strata are further corroborated as upper part of biochronozone NP16 by Marie-Pierre Aubry (2002, unpublished report) and the upper part of biochronozone P12 (= E10–E11 biochronozones) by W. A. Berggren (2004, unpublished report), based on an overlap of Acarinina bullbrooki and Turborotalia pomeroli. Therefore, late Lutetian in age.
Lithology and environment
Primary lithology:glauconitic unlithified argillaceous sandstone
Environment:transition zone/lower shoreface
Geology comments: Crossbeds, hummocky cross-stratification, gutter casts, and shell concentrations suggest offshore transition environment.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:90651
Authorizer:J. Sessa Enterer:L. Eccles, U. Smith
Modifier:M. Clapham Research group:GCP,marine invertebrate
Created:2009-08-12 06:29:56 Last modified:2019-08-03 23:50:55
Access level:group members Released:2014-08-12 06:29:56
Creative Commons license:CC BY
Reference information

Primary reference:
11845. K. V. Palmer and D. C. Brann. 1965. Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Peteropoda, Scaphopoda and Cephalopoda. Bulletins of American Paleontology 48:1-471 [M. Kosnik/M. Kosnik/J. Alroy]

Secondary references:

11842 D. T. Dockery. 1980. Invertebrate Macropaleontolgy of the Clarke County Mississippi Area. Bulletin - Mississippi Geological, Economic and Topographic Survey 122 [M. Kosnik/M. Kosnik/L. Eccles]
35561 G. D. Harris. 1919. Pelecypoda of the St. Maurice and Claiborne stages. Bulletins of American Paleontology 6(31):1-208 [J. Sessa/L. Eccles]
11846 K. V. Palmer and D. C. Brann. 1966. Catalogue of the Paleocene and Eocene Mollusks of the Southern and Eastern United States Part II. Gastropoda. Bulletins of American Paleontology 48:471-1057 [M. Kosnik/M. Kosnik/J. Sessa]