Where: La Salle County, Louisiana (31.8° N, 92.3° W: paleocoordinates 32.5° N, 84.5° W)
• coordinate based on nearby landmark
When: Tullos Member (Yazoo Formation), Priabonian (38.0 - 33.9 Ma)
Environment/lithology: marine; marl
Size classes: macrofossils, mesofossils, microfossils
Primary reference: A. B. McPherson and E. M. Manning. 1986. New records of Eocene sea snakes (Pterosphenus) from Louisiana. Montgomery Landing Site, marine Eocene (Jackson) of central Louisiana. Gulf Coast Association of Geological Societies Symposium Proceedings. 197-207 [J. Head/J. Head]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 55251: authorized by Jason Head, entered by Jason Head on 03.10.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Mammalia | |
Zygorhiza kochii Carus 1847 whale | |
Reptilia | |
Pterosphenus schucherti Lucas 1898 snake | |
Aves | |
Actinopteri | |
Sphyraena major Leidy 1855 barracuda | |
Osteichthyes | |
Cylindracanthus rectus Agassiz 1843 ray-finned fish | |
Chondrichthyes | |
Pristis lathami Galeotti 1837 sawfish | |
Galeorhinus huberensis Case 1981 school shark | |
Galeocerdo alabamensis Leriche 1942 tiger shark | |
Hemipristis wyattdurhami White 1956 ground shark | |
"Negaprion gibbesi" = Carcharhinus gibbesii
"Negaprion gibbesi" = Carcharhinus gibbesii Woodward 1889 requiem shark | |
"Ginglymostoma serra" = Nebrius serra
"Ginglymostoma serra" = Nebrius serra Leidy 1877 nurse shark | |
"Odontaspis hopei" = Carcharias hopei
"Odontaspis hopei" = Carcharias hopei Agassiz 1843 sand shark | |
Isurus praecursor Thurmond and Jones 1981 mackerel shark
Lamna lerichi mackerel shark | |
Myliobatis sp. Cuvier 1816 eagle ray | |
"Aetobatis sp." = Aetobatus
"Aetobatis sp." = Aetobatus Blainville 1816 stingray | |
Holothuroidea | |
Holothuroidea indet. de Blainville 1834 sea cucumber | |
Echinoidea | |
Echinoidea indet. Leske 1778 sea urchin | |
Asterozoa | |
"Stelleroidea indet." = Asterozoa
"Stelleroidea indet." = Asterozoa von Zittel 1895 | |
Scaphopoda | |
Cadulus margarita Harris and Palmer 1947 tusk shell | |
Foraminifera | |
Globigerina ouachitaensis Howe and Wallace 1932 | |
Nodosariata | |
Sigmomorphina semitecta Reuss 1867
Globulina sp. d'Orbigny 1839 | |
Dentalina filiformis, Dentalina "sp. A", Dentalina "sp. B", Dentalina sp., Nodosaria pyrula, Marginulinopsis fragaria
Dentalina "sp. A" d'Orbigny 1826
Dentalina "sp. B" d'Orbigny 1826
Dentalina sp. d'Orbigny 1826
Nodosaria pyrula d'Orbigny 1826 | |
Foraminifera | |
"Globorotalia cerroazulensis" = Turborotalia cerroazulensis, "Globorotalia centralis" = Turborotalia cerroazulensis
"Globorotalia centralis" = Turborotalia cerroazulensis Cole 1928 | |
Fursenkoina punctata d'Orbigny 1839 | |
Tubothalamea | |
Foraminifera | |
"Marginulina sp." = Cristellaria (Marginulina)
"Marginulina sp." = Cristellaria (Marginulina) d'Orbigny 1826 | |
Globothalamea | |
Pseudononion sp. Asano 1936
Nonionella jacksonensis Cushman 1933 | |
Foraminifera | |