Also known as Barnesboro
Where: Gloucester County, New Jersey (39.8° N, 75.2° W: paleocoordinates 40.2° N, 50.3° W)
• coordinate estimated from map
When: Navesink Formation (Monmouth Group), Maastrichtian (72.1 - 66.0 Ma)
• At this locality, the most likely source of the specimen is the Maastrichtian Navesink Formation (thanks to Neil Landman for helping with this assessment). (Gaffney et al. 2006, p. 80)
•...examination of the type skull of Bothremys cooki, AMNH 2521, has shown glauconite grains and glauconitic clay remaining as matrix, consistent with either Hornerstown or Navesink Formations. However, the bone of the specimen is dark brown, not the greenish-gray of typical Hornerstown bone. Furthermore, Gallagher (1993) suggested that the bone-producing horizon at Barnsboro was in the Navesink. At present, it seems likely that the type of Bothremys cooki is Maastrichtian rather than Paleocene (Gaffney et al. 2006, p. 83)
• bed-level stratigraphic resolution
Environment/lithology: marginal marine; glauconitic sandstone
Size class: macrofossils
Collected by J. C. Voorhees in 1865
Collection methods: quarrying, surface (in situ),
Primary reference: J. Leidy. 1865. Cretaceous reptiles of the United States. Smithsonian Contributions to Knowledge 192:1-135 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 81999: authorized by Mark Uhen, entered by Mark Uhen on 20.07.2008, edited by Matthew Carrano
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
"Bothremys cookii n. sp." = Bothremys cooki
"Bothremys cookii n. sp." = Bothremys cooki Leidy 1865 sideneck turtle AMNH 2521 (originally Rutgers University 1.KV-6 141, 142) the greater portion of a skull, together with the lower jaw. Of the former the occipital region, the auditory passages, the zygomatic arches, and. some other minor parts are lost; of the latter the condyloid. portions are destroyed
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