Parker Creek, north, Zone 12: Langhian, Maryland
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Cardiida
- Veneridae
|
||||||||||
Cytherea staminea
Conrad 1838
|
||||||||||
recombined as Melosia staminea | ||||||||||
Venus mercenaria
Linnaeus 1758
|
||||||||||
recombined as Mercenaria mercenaria | ||||||||||
Gastropoda
- Neogastropoda
- Muricidae
|
||||||||||
Ecphora quadricostata
(Conrad 1830)
|
||||||||||
var. umbilicata | ||||||||||
Reptilia
- Charadriiformes
- Alcidae
|
||||||||||
Miocepphus mcclungi
Wetmore 1940
|
Wetmore 1943 | |||||||||
Mammalia
- Carnivora
- Phocidae
|
||||||||||
? Leptophoca sp.
True 1906
|
Uhen 2007 | 1 specimen | ||||||||
Leptophoca amphiatlantica n. sp.
Koretsky et al. 2012
|
Koretsky et al. 2012 | 1 specimen | ||||||||
= Leptophoca cf. proxima
Van Beneden 1876
|
Dewaele et al. 2017 | |||||||||
Leptophoca lenis
True 1906
|
Koretsky 2001 | |||||||||
synonym of Leptophoca proxima | ||||||||||
Mammalia
- Cetacea
- Platanistidae
|
||||||||||
Pomatodelphis sp.
Allen 1921
|
Godfrey and Lambert 2023 | |||||||||
Schizodelphis crassangulum
(Case 1904)
|
Uhen 2007 | 1 specimen | ||||||||
recombined as Zarhachis crassangulum | ||||||||||
Mammalia
- Cetacea
- Eurhinodelphinidae
|
||||||||||
Eurhinodelphis sp.
Van Beneden and Gervais 1880
|
Uhen 2007 | 1 specimen | ||||||||
Schizodelphis morckhoviensis
(Du Bus 1872)
|
Godfrey and Lambert 2023 | |||||||||
Mammalia
- Cetacea
|
||||||||||
Parietobalaena palmeri
Kellogg 1924
|
Uhen 2007 | 1 specimen | ||||||||
Chondrichthyes
- Carcharhiniformes
- Hemigaleidae
|
||||||||||
Hemipristis serra
Agassiz 1835
|
Uhen 2007 | 1 specimen | ||||||||
Chondrichthyes
- Lamniformes
- Alopiidae
|
||||||||||
Alopias palatasi n. sp.
Kent 2018
|
Kent 2018 | |||||||||
see common names |
Geography
Country: | United States | State/province: | Maryland | County: | Calvert |
Coordinates: | 38.5° North, 76.5° West (view map) | ||||
Paleocoordinates: | 38.7° North, 73.2° West | ||||
Basis of coordinate: | estimated from map |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Langhian | 10 m.y. bin: | Cenozoic 5 |
Key time interval: | Langhian | ||
Age range of interval: | 15.97000 - 13.82000 m.y. ago |
Stratigraphy
Geological group: | Chesapeake | Formation: | Calvert | Member: | Plum Point |
Regional section: | Shattuck | Regional bed: | 12 | ||
Regional order: | bottom to top | ||||
Stratigraphic resolution: | bed |
Lithology and environment
Primary lithology: | brown sandy claystone |
Includes fossils? | Y |
Lithology description: brownish sandy clay | |
Environment: | estuary/bay |
Geology comments: sparse molluscs, low in diversity; subtropical environment in embayment and dry onshore; area not far from shore, bay, short-term eustatic transgression events, long-term regression trend
|
Taphonomy
Modes of preservation: | body,original phosphate |
Size of fossils: | macrofossils |
Associated major elements: | all |
Collection methods and comments
Collection methods: | surface (in situ),field collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | USNM |
Metadata
Also known as: | south of Dares Wharf | ||
Database number: | 70823 | ||
Authorizer: | M. Uhen, M. Nelson | Enterer: | M. Uhen, M. Nelson |
Modifier: | B. Shipps | Research group: | marine invertebrate,vertebrate |
Created: | 2007-04-09 13:50:23 | Last modified: | 2017-02-26 14:56:22 |
Access level: | the public | Released: | 2007-04-09 13:50:23 |
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:
61790 | L. Dewaele, O. Lambert, and S. Louwye. 2017. On Prophoca and Leptophoca (Pinnipedia, Phocidae) from the Miocene of the North Atlantic realm: redescription, phylogenetic affinities and paleobiogeographic implications. PeerJ 5:e3024 [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] | |
23873 | B. W. Kent. 2018. The Cartilaginous Fishes (Chimaeras, Sharks, and Rays) of Calvert Cliffs, Maryland, USA. In S. J. Godfrey (ed.), Smithsonian Contributions to Paleobiology 100:45-160 [J. Alroy/J. Alroy/M. Uhen] | |
17253 | I. Koretsky. 2001. Morphology and systematics of Miocene Phocinae (Mammalia: Carnivora) from Paratethys and the North Atlantic region. Geologica Hungarica Series Palaeontologica 54:1-109 [M. Uhen/M. Uhen] | |
39675 | I. A. Koretsky, C. E. Ray, and N. Peters. 2012. A new species of Leptophoca (Carnivora, Phocidae, Phocinae) from both sides of the North Atlantic Ocean (Miocene seals of the Netherlands, part I). Deinsea 15:1-12 [M. Uhen/M. Uhen] | |
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] | |
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] | |
32709 | L. W. Ward and G. W. Andrews. 2008. Stratigraphy of the Calvert, Choptank, and St. Marys Formations (Miocene) in the Chesapeake Bay Area, Maryland and Virginia. Virginia Museum of Natural History Memoir 1-169 [M. Uhen/M. Uhen] | |
32711 | A. Wetmore. 1943. A second specimen of the fossil guillemot, Miocepphus. The Auk 60(4):604 [M. Uhen/M. Uhen] | |
29991 | E. Wijnker and S. L. Olson. 2009. A revision of the fossil genus Miocepphus and other Miocene Alcidae (Aves: Charadriiformes) of the western North Atlantic Ocean. Journal of Systematic Palaeontology 7(4):471-487 [M. Uhen/M. Uhen/M. Uhen] |