Also known as Mt. Laurel
Where: Burlington County, New Jersey (40.0° N, 74.9° W: paleocoordinates 39.1° N, 44.1° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Englishtown Formation (Matawan Group), Campanian (83.6 - 72.1 Ma)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; fine-grained, glauconitic, micaceous, quartzose, white, yellow, silty sandstone and carbonaceous claystone
•"a conspicuous bed of white or yellow quartz sand that is slightly micaceous and glauconitic. Some beds are locally cemented by iron oxide to form rather massive deposits of sandstone. There are a few lenses of clay or clayey sand, especially in the upper part of the formation, but these are probably not continuous. Cross-bedding is characteristic of some phases".
•"1) in the thicker northern part of its outcrop, the formation is composed largely of cross-bedded sand; 2) in the central part of the outcrop belt, the Englishtown is intercalated sand and dark carbonacous clay; 3) to the southwest along strike the formation thins and becomes a massive dark-colored silty fine sand. The bulk of the formation is composed of moderately- to well-sorted quartz sand with subsidiary mica, feldspar, and weathered grains of glauconite; clays and silts contain abundant mica and lignite particles".
•"a white or tan, slightly glauconitic, micacous and lignitic, well-sorted, horizontally-bedded, fine-grained silty quartz sand, which in some places contains laminae of clay".
Size class: mesofossils
Collected by Donald Clements
Collection methods: surface (in situ),
Primary reference: W. B. Gallagher. 1993. The Cretaceous/Tertiary mass extinction event in the North Atlantic coastal plain. The Mosasaur 5:75-154 [M. Carrano/M. Carrano]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 167668: authorized by Matthew Carrano, entered by Matthew Carrano on 27.03.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
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