Kings Bluff, Weehawken (Triassic of the United States)

Also known as Yale Quarry

Where: Hudson County, New Jersey (40.8° N, 74.0° W: paleocoordinates 15.4° N, 19.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Nursey Member (Lockatong Formation), Norian (228.0 - 208.5 Ma)

• "the Lockatong Formation is composed entirely of repetitive sedimentary cycles caused by the rise and fall of lakes controlled by climate changes...". The Weehawken quarry is in cycles w-5 and W-6 of the Nursery Member of the Lockatong. Reported as upper Carnian/late Tuvalian. "Conewagian" LVF.

•- Two cycles (5 and 6), each with fossiliferous beds.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; black, calcareous siltstone

• "Deep (+ 80m) very large (+ 7000 square metres) perenially stratified lakes"
• "Division 2 is a thinly bedded, laminated to microlaminated (laminae < 1 mm) red, green or gray to black, sometimes organic-carbon-rich, siltstone, claystone, or carbonate showing few or no signs of desiccation. In its best-developed form, division 2 is black and microlaminated and contains abundant and well-preserved fossil fish, arthropods, and small reptiles"

Size classes: macrofossils, mesofossils, microfossils

Preservation: adpression

Collected by K. Thomson, P. Olsen & McCune in 1978; reposited in the AMNH, YPM

Collection methods: quarrying, hydrochloric,

Primary reference: P. E. Olsen. 1980. Fossil great lakes of the Newark Supergroup of New Jersey. In W. Manspeizer (ed.), Field Studies in New Jersey Geology and Guide to Field Trips. 52nd Annual Meeting, New York State Geological Association 352-398 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 91743: authorized by Richard Butler, entered by Richard Butler on 19.10.2009, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

 Conchostraca -
Conchostraca indet.1 Sars 1867 clam shrimp
Ostracoda indet.1 Latreille 1802 ostracod
 Palaeonisciformes - Palaeoniscidae
Turseodus sp. Leidy 1857
 Palaeonisciformes - Redfieldiidae
Cionichthys sp. Schaeffer 1967
Synorichthys cf. stewarti2 Schaeffer 1967
 Semionotiformes - Semionotidae
 Coelacanthiformes - Mawsoniidae
Diplurus sp. Newberry 1878 coelacanth
 Coelacanthini -
Osteopleurus newarki1 Bryant 1919 lobe-finned fish
 Eosuchia - Tanystropheidae
Tanytrachelos ahynis Olsen 1979 archosauromorph
 Diapsida -
Hypuronector limnaios1 Colbert and Olsen 2001 diapsid
"About 300 isolated specimens"; includes YPM 8641, 56385-56393