Lewisville Dam (Pleistocene of the United States)

Where: Denton County, Texas (33.1° N, 97.0° W: paleocoordinates 33.1° N, 97.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• the pit "removed some 20 feet of earth from the local [Upper Shuler subformation of the] Pemberton Hill-Lewisville (T-2) terrace surface" (thought to be Peorian = mid-Wisconsinan in age) and hearths were recovered from layers 1, 2, 3, and 5 in the local sequence of seven layers, each capped by "a minor uncomformity and caliche formation"; there are radiocarbon dates on "charred, fibrous, vegetable material" and "remains of 4 small logs" of "more than 37,000 years B.P." from two distinct hearth sites in layer 2

• group of beds-level stratigraphic resolution

Environment/lithology: "floodplain"; yellow, sandy claystone

• "yellow sandy clay"

Size class: macrofossils

• "more than 21 hearths of an ancient campsite" were found and "much of" the fauna was "actually burned within the hearths themselves, and the remainder closely associated as camp refuse, along with certain distinctive artifacts" including a "Clovis point"

Preservation: anthropogenic

Collected by T. E. White, G. L. Evans, E. B. Jelks, W. W. Crook, R. K. Harris in 1949 - 1957

Collection methods: salvage,

• borrow pit was excavated by the U.S. Corps of Engineers from 1949 to 1951 and by the Dallas Archeological Society from 1952 to 1957

Primary reference: W. W. Crook, Jr. and R. K. Harris. 1958. A Pleistocene campsite near Lewisville, Texas. American Antiquity 23(3):233-246 [J. Alroy/J. Alroy]more details

Purpose of describing collection: archaeological analysis

PaleoDB collection 93527: authorized by John Alroy, entered by John Alroy on 20.01.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• molluscs were "present in quantity only as burned material within the hearths themselves"
unclassified
  -
Aves
  -
Aves indet. Linnaeus 1758 bird
Reptilia
 Squamata - Colubridae
Colubridae indet. Oppel 1811 colubrid snake
"group A" and "group B"
 Testudines - Emydidae
"Terrapene canaliculata" = Terrapene putnami
"Terrapene canaliculata" = Terrapene putnami Hay 1906 box turtle
 Testudines - Testudinidae
Gopherus sp. Rafinesque 1832 gopher tortoise
a 'large" form and a "'Gopherus' type turtle"
Mammalia
 Cingulata - Glyptodontidae
Glyptotherium sp. Osborn 1903 glyptodon
"scutes"
 Proboscidea -
Proboscidea indet. Illiger 1811 proboscidean
 Carnivora - Ursidae
"Euarctos sp." = Ursus
"Euarctos sp." = Ursus Linnaeus 1758 bear
 Carnivora - Procyonidae
Procyon lotor Linnaeus 1758 raccoon
 Carnivora - Mephitidae
Mephitis mephitis Schreber 1776 striped skunk
 Carnivora - Canidae
Canis sp. Linnaeus 1758 canine
large and small sized forms
 Perissodactyla - Equidae
Equus sp. Linnaeus 1758 horse
large and medium sized forms
 Artiodactyla - Tayassuidae
"Platygonus ? alemanii" = Platygonus compressus
"Platygonus ? alemanii" = Platygonus compressus Leconte 1848 peccary
 Artiodactyla - Camelidae
Camelops sp. Leidy 1854 camel
 Artiodactyla - Cervidae
Odocoileus sp. Rafinesque 1832 New World deer
large and small sized forms
 Artiodactyla - Bovidae
? Bison sp. Hamilton-Smith 1827 bison
includes a skull that "probably" belongs "to the Bison antiquus taylori group"
 Theriamorpha - Talpidae
Scalopus aquaticus Linnaeus 1758 eastern mole
 Lagomorpha - Leporidae
Lepus sp. Linnaeus 1758 hare
"possibly extinct" possible new species
Sylvilagus floridanus Allen 1890 eastern cottontail
 Rodentia - Cricetidae
Peromyscus sp. Gloger 1841 deer mouse
"leucopus or maniculatus"
Peromyscus gossypinus Le Conte 1853 cotton mouse
Neotoma sp. Say and Ord 1825 pack rat
Microtus sp. Schrank 1798 vole
 Rodentia - Sciuridae
Sciurus niger Linnaeus 1758 fox squirrel
"Citellus sp." = Spermophilus Cuvier 1825 ground squirrel
Cynomys ludovicianus Ord 1815 black-tailed prairie dog
Pisces
  -
"Pisces indet." = Osteichthyes
"Pisces indet." = Osteichthyes Huxley 1880 bony fish
Gastropoda
 Stylommatophora - Polygyridae
Bivalvia
 Unionida - Unionidae
Amblema plicata freshwater mussel
Quadrula frustulosa freshwater mussel
Angiospermae
 Rosales - Ulmaceae
Celtis sp. Linnaeus 1753 hackberry