Chesapeake Beach, south of, Zone 4-9: Burdigalian, Maryland
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
|
|||||||
Delphinus sp.
Linnaeus 1758
|
Uhen 2007 | 1 specimen | |||||
= Odontoceti indet.
|
Uhen 2500 | ||||||
Bivalvia
- Pectinida
- Pectinidae
|
|||||||
Pecten humphreysii
Conrad 1842
|
Ward 1992 | ||||||
Chesapecten coccymelus
(Dall 1898)
|
Ward 1992 | ||||||
Bivalvia
- Ostreida
- Gryphaeidae
|
|||||||
Pycnodonte percrassa
(Conrad 1840)
|
Ward 1992 | ||||||
Bivalvia
- Lucinida
- Lucinidae
|
|||||||
Lucinoma contracta
(Say 1824)
|
Ward 1992 | ||||||
Bivalvia
- Pholadida
- Corbulidae
|
|||||||
Corbula elevata
Conrad 1838
|
|||||||
recombined as Varicorbula elevata | |||||||
Varicorbula elevata
(Conrad 1838)
|
Ward 1992 | ||||||
Chondrichthyes
- Odontaspidida
- Isuridae
|
|||||||
Oxyrhina elegans
|
Uhen 2007 | 3 elements | |||||
Chondrichthyes
- Carcharhiniformes
- Carcharhinidae
|
|||||||
Galeocerdo contortus
Gibbes 1847
|
Uhen 2007 | 2 elements | |||||
recombined as Physogaleus contortus | |||||||
Chondrichthyes
- Lamniformes
- Lamnidae
|
|||||||
Oxyrhina sillimani
Gibbes 1847
|
Uhen 2007 | 1 element | |||||
recombined as Isurus sillimanii | |||||||
Mammalia
- Cetacea
- Platanistidae
|
|||||||
Araeodelphis natator n. gen., n. sp.
Kellogg 1957
|
Kellogg 1957 | 2 specimens | |||||
Mammalia
- Cetacea
- Physeteridae
|
|||||||
Orycterocetus crocodilinus
Cope 1867
|
Uhen 2007 | 1 specimen | |||||
Mammalia
- Cetacea
- Eurhinodelphinidae
|
|||||||
Schizodelphis barnesi
(Myrick 1979)
|
Godfrey and Lambert 2023 | ||||||
Mammalia
- Cetacea
- Kentriodontidae
|
|||||||
Kentriodon sp.
Kellogg 1927
|
Uhen 2007 | 1 specimen | |||||
Mammalia
- Cetacea
|
|||||||
Rhabdosteus latiradix
Cope 1867
|
Uhen 2007 | 1 specimen | |||||
nomen dubium belonging to Odontoceti | |||||||
Priscodelphinus sp.
Leidy 1851
|
Uhen 2007 | 1 specimen | |||||
nomen dubium belonging to Odontoceti | |||||||
Reptilia
- Testudines
|
|||||||
Chelonia indet.
(Latreille 1800)
|
Uhen 2007 | 1 specimen | |||||
synonym of Testudines | |||||||
see common names |
Geography
Country: | United States | State/province: | Maryland | County: | Calvert |
Coordinates: | 38.7° North, 76.5° West (view map) | ||||
Paleocoordinates: | 38.9° North, 72.6° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | outcrop |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Burdigalian | 10 m.y. bin: | Cenozoic 5 |
Key time interval: | Burdigalian | ||
Age range of interval: | 20.44000 - 15.97000 m.y. ago |
Stratigraphy
Geological group: | Chesapeake | Formation: | Calvert | Member: | Plum Point |
Regional section: | Shattuck | Regional bed: | 4-9 | ||
Regional order: | bottom to top | ||||
Stratigraphic resolution: | bed |
Lithology and environment
Primary lithology: | sandy claystone |
Includes fossils? | Y |
Lithology description: no lithological description given | |
Environment: | offshore |
Geology comments: Biologically active, open marine environment |
Taphonomy
Modes of preservation: | body,original phosphate |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | good |
Articulated whole bodies: | all |
Collection methods and comments
Collection methods: | surface (float),field collection |
Collection size: | 1 specimens |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | USNM |
Collection method comments: collected from a block of sediment apparently fallen from the cliff from Zone 10 |
Metadata
Also known as: | Randle Cliff Beach, north | ||
Database number: | 70593 | ||
Authorizer: | M. Uhen, M. Nelson | Enterer: | M. Uhen, M. Nelson |
Modifier: | G. Varnham | Research group: | marine invertebrate,vertebrate |
Created: | 2007-03-29 14:25:56 | Last modified: | 2022-03-03 04:17:37 |
Access level: | the public | Released: | 2007-03-29 14:25:56 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
23697. | G. B. Shattuck. 1904. Geological and paleontological relations, with a review of earlier investigations. Maryland Geological Survey Miocene Text xxxiii-clv [M. Uhen/M. Uhen] |
Secondary references:
33233 | R. N. Benson. 1998. Radiolarians and Diatoms from the Pollack Farm Site, Delaware: Marine-Terrestrial Correlation of Miocene Vertebrate Assemblages of the Middle Atlantic Coastal Plain. Delaware Geological Survey Special Publication (21)5-19 [M. Uhen/Z. Tieman] | |
62154 | S. J. Godfrey, L. G. Barnes, and O. Lambert. 2017. The Early Miocene odontocete Araeodelphis natator Kellogg, 1957 (Cetacea; Platanistidae), from the Calvert Formation of Maryland, U.S.A. Journal of Vertebrate Paleontology e1278607 [M. Uhen/M. Uhen] | |
85660 | S. J. Godfrey and O. Lambert. 2023. Miocene Toothed Whales (Odontoceti) from Calvert Cliffs, Atlantic Coastal Plain, USA. Smithsonian Contributions to Paleobiology 107:29-186 [M. Uhen/M. Uhen] | |
11926 | R. Kellogg. 1957. Two additional Miocene porpoises from the Calvert Cliffs Maryland. Proceedings of the United States National Museum 107(3387):279-337 [M. Uhen/M. Uhen/M. Uhen] | |
24251 | M. D. Uhen. 2007. USNM Chesapeake Group Cetacean Collection Data. [M. Uhen/M. Uhen] | |
16985 | L. W. Ward. 1992. Molluscan biostratigraphy of the Miocene Middle Atlantic Coastal Plain of North America. Virginia Museum of Natural History 2 [A. Miller/A. Hendy] |