Montgomery Landing (Moodys Branch) (Eocene of the United States)

Where: Grant County, Louisiana (32.2° N, 92.1° W: paleocoordinates 33.2° N, 83.2° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Moodys Branch Formation (Jackson Group), Bartonian (41.3 - 38.0 Ma)

• supposedly "Auversian"; stage assignment based on Baum et al. 1994

•Moodys Branch=Bartonian (JAS 14 October 2010)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; sandstone

Size class: mesofossils

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 3534: authorized by Mark Patzkowsky, entered by Karen Layou on 04.08.1999, edited by Jason Head, Mark Uhen, Pete Wagner and Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Anthozoa
 Scleractinia - Rhizangiidae
Astrangia ludoviciana Vaughan 1900 stony coral
 Scleractinia - Dendrophylliidae
Endopachys maclurii Lea 1833 stony coral
 Scleractinia - Flabellidae
Flabellum wailesii Conrad 1856 stony coral
Flabellum cuneiforme wailesii
 Scleractinia - Caryophylliidae
Trochocyathus montgomeriensis stony coral
Trochocyathus lunulitiformis montgomeriensis
Bivalvia
 Nuculida - Nuculidae
Nucula yazooensis nut clam
Nucula magnifica yazooensis
"Nucula spheniopsis" = Nucula (Nucula) sphenopsis Conrad 1865 nut clam
 Ostreida - Gryphaeidae
Gigantostrea trigonalis Conrad 1854 oyster
 Pectinida - Pectinoidae
Chlamys nupera Conrad 1854 scallop
 Arcida - Glycymerididae
Glycymeris filosa Conrad 1854 clam
 Arcida - Arcidae
Barbatia cuculloides Conrad 1833 clam
 Carditida - Carditidae
"Venericardia diversidentata" = Venericardia (Rotundicardia) diversidentata
"Venericardia diversidentata" = Venericardia (Rotundicardia) diversidentata Meyer 1885 clam
 Carditida - Crassatellidae
Bathytormus flexurus Conrad 1854 clam
 Cardiida - Veneridae
Callista annexa Conrad 1865 venus clam
Pitar securiformis Conrad 1865 venus clam
 Pholadida - Teredinidae
Teredo mississippiensis Conrad 1854 clam
 Pholadida - Corbulidae
Scaphopoda
 Gadilida - Gadilidae
Cadulus margarita Harris and Palmer 1947 tusk shell
 Dentaliida - Dentaliidae
Dentalium jacksonense tusk shell
Dentalium mississippiense jacksonense
Gastropoda
 Neotaenioglossa - Calyptraeidae
"Calyptraea aperta" = Calyptraea (Trochita) aperta
"Calyptraea aperta" = Calyptraea (Trochita) aperta Solander 1766 slipper shell
 Sorbeoconcha - Rostellariidae
 Neogastropoda - Volutidae
Lapparia dumosa Conrad 1854 volute
Caricella polita Conrad 1854 volute
Athleta symmetricus Conrad 1854 volute
 Neogastropoda - Olivellidae
Agaronia mississippiensis Conrad 1848 snail
 Neogastropoda - Conidae
"Conus tortilis" = Conus sauridens
"Conus tortilis" = Conus sauridens Conrad 1833 cone shell
 Neogastropoda - Borsoniidae
Pseudotoma heilprini Aldrich 1885 snail
 Neogastropoda - Turridae
Pleurofusia fluctuosa Harris 1937 turrid
Turricula (Pleurofusia) subservata n. sp.3 Harris and Palmer 1947 turrid
 Neogastropoda - Fasciolariidae
 Neogastropoda - Mitridae
 Sorbeoconcha - Cypraeidae
Cypraeorbis ventripotens Cossmann 1903 cowry
 Sorbeoconcha - Pediculariidae
"Cypraea ludoviciana n. sp." = Jenneria (Projenneria) ludoviciana1
"Cypraea ludoviciana n. sp." = Jenneria (Projenneria) ludoviciana1 Johnson 1899 snail
 Sorbeoconcha - Naticidae
Natica permunda Conrad 1854 moon snail
 Sorbeoconcha - Capulidae
Capulus americanus Conrad 1854 snail
 Cerithioidea - Turritellidae
Turritella creola Harris and Palmer 1947 turret shell
unclassified
  -
Vertebrata indet. Lamarck 1801
shark teeth
Osteichthyes
 Acipenseriformes -
Cylindracanthus rectus4 Agassiz 1843 ray-finned fish
Aves
 Neornithes -
Reptilia
 Squamata - Palaeophiidae
Pterosphenus schucherti4 Lucas 1898 snake
Actinopteri
 Acanthopteri - Sphyraenidae
Sphyraena major4 Leidy 1855 barracuda
 Anguilliformes - Muraenidae
"Conger brevior" = Congeris brevior2
"Conger brevior" = Congeris brevior2 Koken 1888 eel
 Anguilliformes - Congridae
Conger dissimilis2 Frizzell and Lamber 1962 conger eel
Ariosoma nonsector5 Nolf and Stringer 2003 conger eel
 Albuliformes - Albulidae
Albula sp.5 Gronow 1763 bonefish
 Perciformes - Lactariidae
Lactarius sp.5 Cuvier and Valenciennes 1833 perch-like fish
 Acanthuriformes - Sciaenidae
 Scombriformes - Trichiuridae
Chondrichthyes
 Carcharhiniformes - Triakidae
Galeorhinus huberensis4 Case 1981 school shark
 Carcharhiniformes - Hemigaleidae
Hemipristis wyattdurhami4 White 1956 ground shark
 Carcharhiniformes - Galeocerdidae
Galeocerdo alabamensis4 Leriche 1942 tiger shark
 Carcharhiniformes - Carcharhinidae
"Negaprion gibbesi" = Carcharhinus gibbesii4
"Negaprion gibbesi" = Carcharhinus gibbesii4 Woodward 1889 requiem shark
 Orectolobiformes - Ginglymostomatidae
"Ginglymostoma serra" = Nebrius serra4
"Ginglymostoma serra" = Nebrius serra4 Leidy 1877 nurse shark
 Lamniformes - Lamnidae
Isurus praecursor4 Thurmond and Jones 1981 mackerel shark
Lamna lerichi4 mackerel shark
 Lamniformes - Carchariidae
"Odontaspis hopei" = Carcharias hopei4
"Odontaspis hopei" = Carcharias hopei4 Agassiz 1843 sand shark
 Rhinopristiformes - Pristidae
Pristis lathami4 Galeotti 1837 sawfish
 Myliobatiformes - Myliobatidae
Myliobatis sp.4 Cuvier 1816 eagle ray
 Myliobatiformes - Aetobatidae
"Aetobatis sp." = Aetobatus4
"Aetobatis sp." = Aetobatus4 Blainville 1816 stingray
Echinoidea
 Spatangoida - Schizasteridae
"Schizaster armiger" = Paraster armiger
"Schizaster armiger" = Paraster armiger Clark and Twitchell 1915 heart urchin
originally entered as "Scizaster armiger"