Shark River (Eocene of the United States)

Where: Monmouth County, New Jersey (40.3° N, 74.3° W: paleocoordinates 40.0° N, 61.7° W)

• coordinate based on political unit

When: Shark River Formation, Lutetian (47.8 - 41.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Reposited in the YPM

Primary reference: C. L. Gazin. 1953. The Tillodontia: an early Tertiary order of mammals. Smithsonian Miscellaneous Collections 121(10):1-110 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 16411: authorized by John Alroy, entered by John Alroy on 15.05.2002, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Myliobatiformes - Dasyatidae
Myliobatis fastigiatus2 Leidy 1876 eagle ray
stated to be from an upper marl bed or Eocene green sand, Monmouth County
Aetobatis irregularis2 Agassiz 1843 eagle ray
stated to be from greensand, Monmouth County
 Orectolobiformes - Orectolobidae
Ginglymostoma obliquum2 Leidy 1877 nurse shark
Monmouth County
Reptilia
 Squamata - Palaeophiidae
"Dinophis grandis n. sp." = Palaeophis grandis3
"Dinophis grandis n. sp." = Palaeophis grandis3 Marsh 1869 snake
YPM 2762
Mammalia
 Trogontia - Esthonychidae
Trogosinae indet.1 Gazin 1953 tillodont