West Jersey Marl Company's Pit, Barnsboro (Cretaceous of the United States)

Also known as Dryptosaurus & Laelaps type site, Barnesboro, Gloucester, Mantua

Where: Gloucestershire County, New Jersey (39.7° N, 75.2° W: paleocoordinates 40.2° N, 50.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: New Egypt Formation (Monmouth Group), Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• upper part of formation, from the top of the "chocolate" bed in the marl pits, about 20 ft below the surface

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; green sandstone and brown marl

• specimen is from "the top of the "chocolate" bed, which immediately underlies the green stratum which is of such value as manure."

Size class: macrofossils

Collected by J. C. Voorhees in 1866–1872

Collection methods: mechanical,

• Found by J. C. Voorhees, Superintendent of the West Jersey Marl Company's Pits

Primary reference: E. D. Cope. 1866. [On the remains of a gigantic extinct dinosaur, from the Cretaceous Green Sand of New Jersey]. Proceedings of the Academy of Natural Sciences of Philadelphia 18:275-279 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 48570: authorized by Matthew Carrano, entered by Matthew Carrano on 23.03.2005, edited by Phillip Elliott, Philip Mannion and Roger Benson

Creative Commons license: CC BY (attribution)

Taxonomic list

 Arcida - Cucullaeidae
 Ammonitida - Baculitidae
Baculites ovatus1 Say 1820 ammonite
 Chimaeriformes - Chimaeridae
Leptomylus forfex2 Cope 1875 chimaera
mandible, maxilla
 Chimaeriformes - Callorhynchidae
Edaphadon mirificus5 Leidy 1856 plownose chimaera
 Testudines -
"Lytoloma angusta" = Catapleura repanda7
"Lytoloma angusta" = Catapleura repanda7 Cope 1868 sea turtle
YPM 625
 Testudines - Kinosternoidea
"Agomphus masculinus n. sp." = Agomphus pectoralis8
"Agomphus masculinus n. sp." = Agomphus pectoralis8 Cope 1870 mud turtle
YPM 671, partial shell
 Testudines - Bothremydidae
"Taphrosphys sulcatus" = Taphrosphys sulcatus3, "Taphrosphys molops n. sp." = Taphrosphys sulcatus1
"Taphrosphys sulcatus" = Taphrosphys sulcatus3 Leidy 1856 sideneck turtle
AMNH 1470 (Hay, 1908, p. 119, fig. 119), neural bones, nuchal, carapace fragments; AMNH 1477 (Hay, 1908, fig. 120), shell fragments; AMNH 1468 (Cope, 1870, p. 166, fig. 45; Hay, 1908, figs. 99, 100), shell fragments; AMNH 1469, shell fragments; AMNH 2524 (Cope, 1870, p. 165, fig. 45), nuchal bone,
"Taphrosphys molops n. sp." = Taphrosphys sulcatus1 Leidy 1856 sideneck turtle
AMNH 1472 (type of Taphrosphys molops Cope, figured in Cope, 1870, pl. 7, fig. 16; text figs. 43, 44; Hay, 1908, figs. 112-116), shell fragments;
 Avetheropoda -
"Laelaps aquilunguis n. gen. n. sp." = Dryptosaurus aquilunguis
"Laelaps aquilunguis n. gen. n. sp." = Dryptosaurus aquilunguis Cope 1866 coelurosaur
ANSP 9995, AMNH 2348
 Neornithischia - Hadrosauridae
? Hadrosauridae indet.4 Cope 1869 hadrosaurid
left coracoid; YPM 7898
? Lambeosaurinae indet.4 Parks 1923 lambeosaurine
radius, ulna; YPM 3216
"Hadrosaurus" minor4 Cope 1869 hadrosaurid
partial limbs; YPM 7896, 645
Hadrosaurus minor4 Cope 1869 hadrosaurid
R femur; ANSP 10007
 Loricata - Dyrosauridae
"Hyposaurus natator" = Hyposaurus rogersii6
"Hyposaurus natator" = Hyposaurus rogersii6 Owen 1849 crocodilian
Hyposaurus natator oweni n. subsp. - YPM 753 - type (part of the mandible, several dorso-lumbar vertebrae, a complete right pelvis, a few caudals, and some limb elements). Also included in the type material is an anterior lower jaw fragment of a second individual (Norell and Storrs 2003)
 Squamata - Mosasauridae
Mosasaurus dekayi1, "Mosasaurus oarthrus n. sp." = Mosasaurus hoffmanni1
Mosasaurus dekayi1 Bronn 1838 mosasaur
"Mosasaurus oarthrus n. sp." = Mosasaurus hoffmanni1 Mantell 1829 mosasaur
AMNH 1392