Ten Bits Ranch, north of Study Butte (Cretaceous to of the United States)

Also known as Chupacabrachelys complexus type, TMM 45606

Where: Brewster County, Texas (29.4° N, 103.5° W: paleocoordinates 35.9° N, 77.0° W)

• coordinate based on nearby landmark

When: Upper Shale Member (Aguja Formation), Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)

• base of the upper shale member, about 1 m above the top of the Terlingua Creek sandstone

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; carbonaceous sandstone

• coastal environment - brackish water habitat
• Very fine-grained cross-laminated sandstone bed with thin discontinuous

•layers of carbonaceous clay

Size class: macrofossils

Collected in 2005; reposited in the TMM

Primary reference: T. M. Lehman and S. L. Wick. 2010. Chupacabrachelys complexus, n. gen. n. sp. (Testudines: Bothremydidae), from the Aguja Formation (Campanian) of West Texas. Journal of Vertebrate Paleontology 30(6):1709-1725 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 115413: authorized by Philip Mannion, entered by Philip Mannion on 02.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Theropoda - Caenagnathidae
Caenagnathidae indet. Sternberg 1940 maniraptoran
TxVP 45908-6
 Testudines - Bothremydidae
Chupacabrachelys complexus n. gen. n. sp. Lehman and Wick 2010 sideneck turtle
TMM 45606–1 - holotype - skull, lower jaw, a nearly complete shell (missing anterior end of nuchal and first through third peripherals on the right side), atlas and parts of three cervical vertebrae, first through fifth thoracic vertebrae, 10 caudal vertebrae, both scapulae and coracoids, right humerus, both ulnae, right radius, three metacarpals, both innominates, six metatarsals, right astragalus, seven phalanges (limb and position uncertain), and eight ungual phalanges