Porters Landing (Miocene of the United States)

Where: Effingham County, Georgia (32.6° N, 81.4° W: paleocoordinates 32.9° N, 77.6° W)

• coordinate estimated from map

When: Marks Head Formation (Hawthorne Group), Burdigalian (20.4 - 16.0 Ma)

• late early Miocene

Environment/lithology: coastal; pebbly, argillaceous sandstone

• subtropical nearshore marine depositional environment
• interlayered sand, clay, and pebbly argilitic sand

Size classes: macrofossils, mesofossils

Preservation: original phosphate

Collection methods: bulk, sieve,

Primary reference: A. E. Pratt and R. M. Petkewich. 1989. Fossil vertebrates from the Marks Head Formation (Early Miocene) of Southeastern Georgia. Georgia Journal of Science 47(1):20-20 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 55530: authorized by Mark Uhen, entered by Mark Uhen on 31.10.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Gnathostomata
  -
Mammalia
 Insectivora -
Insectivora indet. Bowdich 1821 insectivoran
 Rodentia - Heteromyidae
Heteromyidae indet. Gray 1868 rodent
 Rodentia - Cricetidae
Cricetidae indet. Fischer von Waldheim 1817 mouse
 Cetacea -
Odontoceti indet. Flower 1867 toothed whale
 Artiodactyla - Camelidae
Camelidae indet. Gray 1821 camel
Reptilia
  -
Reptilia indet. Laurenti 1768 reptile
 Testudines -
"Chelonia indet." = Testudines
"Chelonia indet." = Testudines Batsch 1788 turtle
 Loricata -
"Crocodilia indet." = Crocodylia
"Crocodilia indet." = Crocodylia Owen 1842 crocodilian
Gnathostomata
  -
Chondrichthyes indet. Huxley 1880 cartilaginous fish
Angiospermae
 Fagales - Juglandaceae
Carya sp. Nuttall 1818 hickory
 Fagales - Fagaceae
Quercus sp. Linnaeus 1753 oak
 Rosales - Ulmaceae
Ulmus sp. Linnaeus 1753 elm
 Saxifragales - Hamamelidaceae
Liquidambar sp. Linnaeus 1753 sweetgum
 Coniferales - Cupressaceae
Taxodium sp. Richard 1810 cypress