ammonites

Marcellus Formation, Group

Geology

Group: Hamilton

Formations: Esopus (2)

Members: unnamed (4), Bakhoven Shale (1), Cardiff (12), Cardiff Shale (1), Cherry Valley (3), Chittenango (5), Solsville (6), Union Springs (10)

Lithologies: "shale" (17), siltstone (6), lime mudstone (4), packstone (2), "limestone" (2)

Paleoenvironments: marine indet. (5), carbonate indet. (6), open shallow subtidal (4), deep subtidal shelf (1), transition zone/lower shoreface (2), offshore (29), basinal (siliciclastic) (1)

Age range: base of the Eifelian to the top of the Givetian or 391.900 to 383.700 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Devonian416.0 - 360.7USA (New Jersey) (9471)
Eifelian391.9 - 388.1USA (New York) (615)
Eifelian391.9 - 388.1USA (Pennsylvania) (74998)
Cazenovia391.9 - 383.7USA (New York) (69460 69461 69462 69463 69464 69465 75231)
Eifelian - Givetian391.9 - 383.7USA (New York) (78909 78910)
Middle Devonian391.9 - 383.7USA (New York) (75140 75143 91091 91215 91216 91217)
Givetian388.1 - 383.7USA (Maryland) (10453)
Givetian388.1 - 383.7USA (New York) (9373 9374 9375 9376 9380 9470 9477 9479 9480 9482 9483 9484 9485 9486 9487 9488 9489 9491 9492 9493 9494 9495 9496 9497 9498 9499 9478 9481 9490 83121)