Where: Burlington County, New Jersey (39.9° N, 74.7° W: paleocoordinates 39.1° N, 44.5° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: CC22b foram zone, Mount Laurel Member (Marshalltown Formation), Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)

• The Blue Marl is an old term for the Mount Laurel

•The Marshalltown Formation was dated at ca. 75.7–71.2 Ma by Miller et al. (2004). More recently, palynological study of the bedded clays that straddle the main fossiliferous layer of siderite clay pebble-filled sand (Grandstaff et al., 1992) has revealed their age as between 76.4–79.6 Ma (e.g., Denton and Tashjian, 2012), placing the Marshalltown Formation in the middle to late Campanian and it is overlain by early Maastrichtian aged Mount Laurel Formation

• member-level stratigraphic resolution

Environment/lithology: marine; lithified, blue marl

Size classes: macrofossils, mesofossils

Primary reference: L. T. Groves. 1994. Jurassic and Cretaceous cypraeacean biogeography and paleontology, with an annotated list of the species. The Cowry 1(2):25-41 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 180662: authorized by Pete Wagner, entered by Pete Wagner on 26.07.2016

Creative Commons license: CC BY (attribution)