Squankum - Shark River Marl [Nautiloida] (Eocene of the United States)

Where: Monmouth County, New Jersey (40.2° N, 74.2° W: paleocoordinates 39.8° N, 62.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Shark River Marl Formation, Middle Eocene (47.8 - 37.7 Ma)

• STRATIGRAPHIC RELATIONS: From the Shark River Marl. AGE: Eocene, according to Miller (1947; Bartonian-Priabonian, according to more GEOLEX. STRATIGRAPHIC POSITION: From unknown position within section.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified siliciclastic sediments

• ENVIRONMENT: Not stated, but presumably shallow marine siliciclastic environment.
• SPECIFIC LITHOLOGY: Not stated, but presumably siliciclastic. LITHIFICATION: Lithified, on the basis of facies description and specimen preservation.

Size class: macrofossils

Preservation: cast, mold/impression

Collection methods: COLLECTOR: Multiple collectors. REPOSITORY: Walker Museum, University of Chicago; AMNH; Rutgers University.

Primary reference: A. K. Miller. 1947. Tertiary nautiloids of the Americas. Geological Society of America Memoir 23:1-234 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 81778: authorized by Austin Hendy, entered by Austin Hendy on 15.07.2008, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to Nautiloida. NOMENCLATURE: Authoritative publication with relatively recent nomenclature and species-resolution identifications.
Show authors, comments, and common names
Reptilia
 Squamata - Palaeophiidae
Palaeophis halidanus n. sp.1
Palaeophis halidanus n. sp.1 Cope 1868 snake
Osteichthyes
 Acipenseriformes -
Cylindracanthus rectus2
Cylindracanthus rectus2 Agassiz 1843 ray-finned fish
Cephalopoda
 Nautilida - Nautilidae
"Eutrephoceras cookanum" = Nautilus cookana
"Eutrephoceras cookanum" = Nautilus cookana Whitfield 1892 nautiloid
1Cope 1868; 2Leriche 1942