USGS 3611, 4286, 10615 (Castle Hayne rock quarry), New Hanover Co., NC: Bartonian, North Carolina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Ostreida - Gryphaeidae
Ostrea trigonalis Conrad 1854
recombined as Gigantostrea trigonalis
Bivalvia - Pectinida - Pectinidae
Pecten (Chlamys) membranosus
original and current combination Chlamys
Cephalopoda - Nautilida - Nautilidae
Eutrephoceras carolinensis Kellum 1926
Mammalia - Cetacea - Basilosauridae
Basilosauridae indet. Cope 1867
Uhen 2013
see common names

Geography
Country:United States State/province:North Carolina County:New Hanover
Coordinates: 34.4° North, 77.9° West (view map)
Paleocoordinates:34.2° North, 68.8° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Eocene
Stage:Bartonian 10 m.y. bin:Cenozoic 3
Key time interval:Bartonian
Age range of interval:41.30000 - 38.00000 m.y. ago
Stratigraphy
Formation:Castle Hayne
Stratigraphic resolution:group of beds
Stratigraphy comments: The Castle Hayne is described as Jackson (Eocene) in age. Age after Ward et al. 1978.
Lithology and environment
Primary lithology:gray,white lithified marl
Secondary lithology:coarse,pebbly,phosphatic,black,green lithified calcareous conglomerate
Includes fossils?Y
Lithology description: two units are described, from bottom to top: (1) coarse conglomerate of green and black phosphate pebbles with sandstone and quartz pebbles cemented by lime; (2) white and grayish-white marl containing some fossils
Environment:deep subtidal ramp
Geology comments: The Castle Hayne Limestone was deposited in an open, normal salinity environment between 30 m and 100 m in water depth. Comfort Member contains cross-bedded intervals, suggesting some energy, consistent with deep subtidal environment.
Taphonomy
Modes of preservation:body,cast
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:difficult macrofossils
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Museum repositories:USGS
Metadata
Database number:41822
Authorizer:A. Miller, M. Uhen Enterer:K. Layou, M. Uhen
Modifier:M. Clapham Research group:marine invertebrate
Created:2004-07-21 06:56:54 Last modified:2019-07-29 22:47:16
Access level:the public Released:2004-07-21 06:56:54
Creative Commons license:CC BY
Reference information

Primary reference:

11173. L.B. Kellum. 1926. Paleontology and Stratigraphy of the Castle Hayne and Trent Marls in North Carolina. United States Geological Survey Professional Paper (143)1-56 [A. Miller/K. Layou/K. Layou]

Secondary references:

42488 M. D. Uhen. 2013. A review of North American Basilosauridae. Alabama Museum of Natural History Bulletin 31(2):1-45 [M. Uhen/M. Uhen/M. Uhen]
42852 L. W. Ward, D. R. Lawrence, and B. W. Blackwelder. 1978. Stratigraphic revision of the middle Eocene, Oligocene, and lower Miocene-Atlantic Coastal Plain of North Carolina. Geological Survey Bulletin 1457(F):1-23 [M. Uhen/M. Uhen/P. Wagner]