Also known as Tooth Draw West, TDW, Tooth Draw Site B, Becca's Tooth Draw
Where: Butte County, South Dakota (45.0° N, 103.2° W: paleocoordinates 51.1° N, 77.1° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Hell Creek Formation (Montana Group), Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• "it was determined that the Tooth Draw Quarry (TD) is approximately, 58 meters below the suspected K-Pg boundary. This places it somewhere in the lower middle of the Hell Creek Formation, equivalent to the lower “Marmath Member” of Frye, (1969) or at the base of the informally named “JenRex Sandstone”, “East Ried Coulee Unit”, as per the lectostratatype section by Hartman et. al (2014)."
•- Single major bonebed with several subunits (Horizons A through E)
• bed-level stratigraphic resolution
Environment/lithology: channel lag; fine-grained, coarse sandstone and ferruginous, pebbly conglomerate
Size classes: macrofossils, mesofossils
Collected by M. Licking, W, Stein in 1980, 2006, 2009–
Collection methods: bulk, surface (float), surface (in situ), sieve,
• "Field collection by the author and PaleoAdventures field crews continues to the present day. Since this is a private locality, all specimens recovered here were placed into three distinct categories: “common”, “commercial” or “scientifically significant”. "
Primary reference: W. W. Stein. 2019. Taking count: a census of dinosaur fossils recovered from the Hell Creek and Lance formations (Maastrichtian). The Journal of Paleontological Sciences JPS.C.2019:01:1-42 [M. Carrano/M. Carrano]more details
Purpose of describing collection: taphonomic analysis
PaleoDB collection 224484: authorized by Matthew Carrano, entered by Matthew Carrano on 09.03.2022
Creative Commons license: CC BY (attribution)
Taxonomic list
Actinopteri | |
Teleostei indet. Müller 1846 | |
Lepisosteus sp. Agassiz 1843 gar | |
"Kindleia fragosa" = Cyclurus fragosus
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin | |
Osteichthyes | |
Acipenser albertensis Lambe 1902 sturgeon | |
Amphibia | |
Scapherpeton sp. Cope 1876 salamander
Habrosaurus sp. Gilmore 1928 siren | |
Opisthotriton sp. Auffenberg 1961 salamander | |
Mammalia | |
Didelphodon sp. Marsh 1889 metatherian | |
| |
Reptilia | |
? Tullochelys sp. Hutchison 2013 turtle | |
Apalone sp. Rafinesque 1832 softshell turtle
Axestemys infernalis Joyce et al. 2019 softshell turtle | |
Gilmoremys sp. Joyce and Lyson 2011 turtle
Aspideretoides sp. Gardner et al. 1995 turtle | |
Adocus sp. Cope 1868 turtle | |
Basilemys sp. Hay 1902 turtle | |
Saxochelys gilberti Lyson et al. 2019 turtle
Plesiobaena sp. Gaffney 1972 turtle
Peckemys brinkmani turtle
Neurankylus sp. Lambe 1902 turtle | |
Borealosuchus sp. Brochu 1997 crocodilian | |
Brachychampsa sp. Gilmore 1911 crocodilian | |
Thoracosaurus sp. Leidy 1852 crocodilian | |
Ornithocheiridae indet. pterosaur | |
Ornithischia indet. Seeley 1888 ornithischian | |
Leptoceratops sp. Brown 1914 leptoceratopsid | |
Triceratops sp. Marsh 1889 ceratopsid
Torosaurus sp. Marsh 1891 ceratopsid | |
Pachycephalosaurus sp., "Dracorex hogwartsia" = Pachycephalosaurus wyomingensis, Thescelosaurus neglectus
Pachycephalosaurus sp. Brown and Schlaikjer 1943 ornithischian
"Dracorex hogwartsia" = Pachycephalosaurus wyomingensis Gilmore 1931 ornithischian incl. atlas-intercentrum (TD-16-260)
Thescelosaurus neglectus Gilmore 1913 ornithopod | |
Edmontosaurus annectens Marsh 1892 hadrosaurine "not including shed Edmontosaurus teeth and fragments, which were very abundant and rarely counted"
| |
Ankylosaurus magniventris Brown 1908 ankylosaurid | |
"Denversaurus schlessmanni" = Edmontonia
| |
Theropoda indet. Marsh 1881 theropod | |
"Tyrannosaurus rex" = Tyrannosaurus rex, "Nanotyrannus lancensis" = Tyrannosaurus rex
"Tyrannosaurus rex" = Tyrannosaurus rex Osborn 1905 tyrant lizard king over 260 isolated teeth and at least 14 elements
"Nanotyrannus lancensis" = Tyrannosaurus rex Osborn 1905 tyrant lizard king | |
Ornithomimus sp. Marsh 1890 ornithomimid | |
Aves | |
| |
Reptilia | |
Pectinodon bakkeri Carpenter 1982 maniraptoran
cf. Troodon sp. Leidy 1856 maniraptoran | |
Dromaeosauridae indet., cf. Richardoestesia sp., Dakotaraptor steini, cf. Saurornitholestes sp., Acheroraptor temertyorum
cf. Richardoestesia sp. Currie et al. 1990 maniraptoran
Dakotaraptor steini DePalma et al. 2015 maniraptoran
cf. Saurornitholestes sp. Sues 1978 maniraptoran
Acheroraptor temertyorum Evans et al. 2013 maniraptoran | |
Paronychodon sp. Cope 1876 maniraptoran | |
Anzu wyliei Lamanna et al. 2014 chicken from hell | |
cf. Albertonykus sp. Longrich and Currie 2009 Alberta claw unguals, TD-16-149 and KU-156687 (TDW-17-002)
| |
Champsosaurus sp. Cope 1876 choristodere | |
| |
Chondrichthyes | |
Myledaphus pustulosus Cook et al. 2014 guitarfish | |
Lonchidion sp. Estes 1964 elasmobranch |