Montgomery Landing, Yazoo Fm.: Priabonian, Louisiana

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
cf. Tythonichthys sp.
3 elements
Actinopteri - Anguilliformes - Congridae
"Conger" dissimilis Frizzell and Lamber 1962
25 elements
Actinopteri - Gadiformes - Bregmacerotidae
Bregmaceros troelli Frizzell and Dante 1965
25 elements
Actinopteri - Perciformes - Lactariidae
Lactarius sp. Cuvier and Valenciennes 1833
10 elements
Actinopteri - Perciformes - Serranidae
Allomorone sp. Frizzell and Dante 1965
10 elements
Actinopteri - Sciaenidae
Jefitchia claybornensis (Koken 1888)
3 elements
Actinopteri - Acanthuriformes - Sciaenidae
Sciaena umbra
3 elements
Actinopteri - Ophidiiformes - Ophidiidae
Preophidion meyeri (Koken 1888)
10 elements
Actinopteri - Scombriformes - Trichiuridae
Trichiurus sp. Linnaeus 1758
3 elements
Actinopteri - Beloniformes - Belonidae
Belone sp. Oken 1816
3 elements
Actinopteri - Acanthopteri - Sphyraenidae
Sphyraena sp. Artedi 1793
3 elements
Mammalia - Cetacea - Basilosauridae
Basilosaurus cetoides (Owen 1839)
1 specimen
Zygorhiza kochii (Carus 1847)
Lancaster 1982 2 specimens
Chondrichthyes - Lamniformes - Odontaspididae
Odontaspis sp. Agassiz 1838
3 elements
Chondrichthyes - Orectolobiformes - Ginglymostomatidae
Ginglymostoma serra (Leidy 1877)
25 elements
recombined as Nebrius serra
Chondrichthyes - Carcharhiniformes - Carcharhinidae
Negaprion gibbesi (Woodward 1889)
3 elements
recombined as Carcharhinus gibbesii
Chondrichthyes - Carcharhiniformes - Galeocerdidae
Galeocerdo clarkensis White 1956
10 elements
Chondrichthyes - Carcharhiniformes - Hemigaleidae
Hemipristis wyattdurhami White 1956
10 elements
Chondrichthyes - Rhinopristiformes - Pristidae
Pristis sp. Linck 1790
3 elements
Chondrichthyes - Myliobatiformes - Myliobatidae
Myliobatus sp. (Cuvier 1816)
3 elements
original and current combination Myliobatis
Chondrichthyes - Myliobatiformes - Dasyatidae
Dasyatis sp. Rafinesque 1810
3 elements
Gastropoda - Naticidae
Euspira jacksonensis Harris and Palmer 1947
3 specimens
Gastropoda - Neogastropoda - Buccinidae
Pseudoliva sp. Swainson 1840
3 specimens
Gastropoda - Neogastropoda - Fasciolariidae
Tritonatractus sp. Cossmann 1901
10 specimens
Gastropoda - Neogastropoda - Volutidae
Caricella sp. Conrad 1835
3 specimens
Athleta sp. Conrad 1853
3 specimens
Gastropoda - Turritellidae
Turritella creola Harris and Palmer 1947
10 specimens
Scaphopoda - Gadilida - Gadilidae
Cadulus margarita Harris and Palmer 1947
25 specimens
Bivalvia - Nuculida - Nuculidae
Nucula spheniopsis (Conrad 1865)
25 specimens
recombined as Nucula (Nucula) sphenopsis
Bivalvia - Pectinida - Pectinidae
Eburnopecten sp.
3 specimens
    = Eburneopecten sp. Conrad 1865
Miller 1985
Misspelling
Bivalvia - Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758
10 specimens
Bivalvia - Ostreida - Pinnidae
Pinna sp. Linnaeus 1758
Bivalvia - Pholadida - Corbulidae
Caestocorbula wailsiana
10 specimens
Bivalvia - Cardiida - Kelliellidae
Alveinus minutus Conrad 1865
25 specimens
Bivalvia - Carditida - Carditidae
Pleuromeris inflator
3 specimens
Gymnolaemata - Cheilostomata - Electridae
Conopeum sp. Gray 1848
Gymnolaemata - Cheilostomata - Otionellidae
Otionella sp.
Gymnolaemata - Cheilostomata - Lunulitidae
Lunulites bassleri
Thecostraca - Scalpellomorpha - Scalpellidae
Arcoscalpellum jacksonensis
25 specimens
Malacostraca - Decapoda - Calappidae
Calappa sp. Weber 1795
25 specimens
see common names

Geography
Country:United States State/province:Louisiana County:Grant
Coordinates: 31.7° North, 92.9° West (view map)
Paleocoordinates:32.4° North, 85.1° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Eocene
Stage:Priabonian 10 m.y. bin:Cenozoic 3
*Period:Middle Tertiary - Middle Tertiary *Epoch:Late/Upper Eocen - Late/Upper Eocene
Key time interval:Priabonian
Age range of interval:37.71000 - 33.90000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Jackson Formation:Yazoo Member:Tullos
Stratigraphic resolution:member
Stratigraphy comments: age after Stringer 2016
Lithology and environment
Primary lithology:gray,green silty claystone
Secondary lithology: "limestone"
Includes fossils?Y
Lithology description: dark greenish-gray (5GY4/1) massive clays, with some silt, and is interrupted by three limestone units.
Environment:offshore shelf
Glacial or sequence phase:transgressive
Taphonomy
Modes of preservation:body,original calcite,original phosphate
Size of fossils:macrofossils
Preservation of anatomical detail:excellent
Associated major elements:some
Encrustation:occasional
Collection methods and comments
Collection methods:selective quarrying,surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:32925
Authorizer:M. Uhen, A. Hendy Enterer:M. Uhen, A. Hendy
Modifier:M. Uhen Research group:marine invertebrate,vertebrate
Created:2003-07-20 11:35:14 Last modified:2020-05-01 11:49:50
Access level:the public Released:2003-07-20 11:35:14
Creative Commons license:CC BY
Reference information

Primary reference:
12024. W. C. Lancaster. 1986. The taphonomy of an archaeocete skeleton and its associated fauna. Proceedngs of the Gulf Coast Association of Geological Societies 119-131 [M. Uhen/M. Uhen/M. Uhen]

Secondary references:

8335 R. Kellogg. 1936. A Review of the Archaeoceti. Carnegie Institution of Washington 482:1-366 [M. Uhen/M. Uhen/M. Uhen]
12025 W. C. Lancaster. 1982. A morphological and paleoecologial analysis of the Archaeoceti of Montgomery Landing, Louisiana. Louisiana State University 1-148 [M. Uhen/M. Uhen/M. Uhen]
30803 W. Miller III. 1985. The Flanner Beach Formation (Middle Pleistocene) in eastern North Carolina. Tulane Studies in Geology and Paleontology 18(3):93-122 [A. Hendy/A. Hendy]