Chandler Bridge Creek (Ashley Fm.): Rupelian, South Carolina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Angiospermae - Vitales - Vitaceae
Vitis sp. Linnaeus 1753
Sanders 1980
Anthozoa - Scleractinia - Dendrophylliidae
Balanophyllia sp. Wood 1844
Sanders 1980
Chondrichthyes
Chondrichthyes indet. Huxley 1880
Sanders 1980
Mammalia - Cetacea
Odontoceti indet. Flower 1867
Sanders 1980
genera X, Y, Z
Mammalia - Cetacea - Xenorophidae
Xenorophus sp. Kellogg 1923
Sanders 1980
Mammalia - Cetacea
Squalodon sp. Grateloup 1840
Sanders 1980
    = Squalodontoidea indet. Simpson 1945
Sanders and Barnes 2002
Mammalia - Cetacea - Eomysticetidae
Micromysticetus rothauseni n. gen., n. sp. Sanders and Barnes 2002
1 specimen
Mammalia - Sirenia - Dugongidae
Sirenia indet. Illiger 1811
Sanders 1980
    = Dugongidae indet. Gray 1821
Sanders and Barnes 2002
Halitherium sp. Kaup 1838
Sanders 1980
nomen dubium belonging to Dugongidae
cf. Metaxytherium sp. de Christol 1840
Sanders 1980
    = Crenatosiren olseni Reinhart 1976
Domning 1997
Reptilia - Testudines - Cheloniidae
Procolpochelys sp. Hay 1908
Sanders 1980
Syllomus sp. Cope 1896
Sanders 1980
Reptilia - Testudines - Dermochelyidae
Psephophorus sp. von Meyer 1847
Sanders 1980
Reptilia
Gavialosuchus sp. Toula and Kail 1885
Sanders 1980
Aves indet. Linnaeus 1758
Sanders 1980
Reptilia - Odontopterygiformes - Pelagornithidae
Pseudodontornithidae indet. Lambrecht 1933
synonym of Pelagornithidae
see common names

Geography
Country:United States State/province:South Carolina County:Dorchester
Coordinates: 33.0° North, 80.2° West (view map)
Paleocoordinates:32.9° North, 73.6° West
Basis of coordinate:estimated from map
Time
Period:Paleogene Epoch:Oligocene
Stage:Rupelian 10 m.y. bin:Cenozoic 4
Key time interval:Rupelian
Age range of interval:33.90000 - 28.10000 m.y. ago
Age estimate:29.6 to 28.1 Ma (other)
Stratigraphy
Geological group:Cooper Formation:Ashley
Stratigraphic resolution:member
Stratigraphy comments: early Chattian, NP 24, 30 cm below contact with the overlying Chandler Bridge Formation; Ashley Formation is identified as Rupelian rather than its conventional assignment as Chattian by Weems et al. 2004

The Ashley Formation falls within calcareous nannoplankton zone NP24 [103], ranging from 29.6–26.8 Ma [12, 20]. The presence of the dinoflagellate Chiropteridium lobospinosum indicates a minimum age of 28.1 Ma [103, 104]. Together, these constraints imply a late Rupelian age (29.6–28.1 Ma) for the Ashley Formation, which is further supported by a strontium date of 29.1 Ma [105]. (Marx & Fordyce, 2015)
Lithology and environment
Primary lithology: not reported
Environment:lagoonal/restricted shallow subtidal
Geology comments: littoral-sublittoral, lagoonal and backbay
Taphonomy
Modes of preservation:body,original phosphate
Size of fossils:macrofossils
Collection methods and comments
Collection methods:selective quarrying,surface (in situ)
Reason for describing collection:taxonomic analysis
Metadata
Database number:45777
Authorizer:M. Uhen Enterer:M. Uhen
Modifier:B. Shipps Research group:vertebrate
Created:2004-12-01 07:51:21 Last modified:2017-02-26 14:41:48
Access level:the public Released:2004-12-01 07:51:21
Creative Commons license:CC BY
Reference information

Primary reference:

12126. A. E. Sanders and L. G. Barnes. 2002. Paleontology of the Late Oligocene Ashley and Chandler Bridge Formations of South Carolina, 2: Micromysticetus rothauseni, a primitive cetotheriid mysticete (Mammalia: Cetacea). Smithsonian Contributions to Paleobiology 93:271-293 [M. Uhen/M. Uhen/M. Uhen]

Secondary references:

55050 F. G. Marx and R. E. Fordyce. 2015. Baleen boom and bust: a synthesis of mysticete phylogeny, diversity and disparity. Royal Society Open Science 2:140434 [M. Uhen/M. Uhen]
15424 A. E. Sanders. 1980. Excavation of Oligocene marine fossil beds near Charleston, South Carolina. National Geographic Society Research Reports 12:601-621 [M. Uhen/M. Uhen]
12128 A. E. Sanders and L. G. Barnes. 2002. Paleontology of the Late Oligocene Ashley and Chandler Bridge Formations of South Carolina, 3: Eomysticetidae, a new family of primitive mysticetes (Mammalia: Cetacea). Smithsonian Contributions to Paleobiology 93:313-356 [M. Uhen/M. Uhen/M. Uhen]
18945 R. E. Weems, J. M. Self-Trail, and L. E. Edwards. 2004. Supergroup stratigraphy of the Atlantic and Gulf Coastal Plains (Middle? Jurassic through Holocene, Eastern North America). Southeastern Geology 42(4):191-216 [M. Uhen/M. Uhen]