Williams Fork
Description
Source: Wikipédia
The Williams Fork Formation is a Campanian to Maastrichtian (Edmontonian) geologic formation of the Mesaverde Group in Colorado. Dinosaur remains are among the fossils that have been recovered from the formation, most notably Pentaceratops sternbergii,. Other fossils found in the formation are the ammonite Lewyites, tyrannosaurids, dromaeosaurids, troodontids, nodosaurids, ankylosaurids, hadrosaurids, hybodonts, neosuchian crocodylomorphs, and the mammals Glasbius and Meniscoessus collomensis.
Découvertes
Source: The Paleobiology Database
Site(s) correspondant(s) à cette formation: 6
Rangely South (SDNHM) : Colorado - Rio Blanco 25955 25956 59189 94096 from S of Rangely, NW Colorado- J&M Site, south of Rangely : Colorado - Rio Blanco 54582 82313 94047 94096 J&M Site, MWC locality number L-2012-13, south of Rangely, Rio Blanco County, Colorado
- UCM Locality 99010 : Colorado - Rio Blanco 83915 Piceance Basin, Rio Blanco County of Colorado
- Walter's Bone : Colorado - Rio Blanco County 94038 Walter's Bone, 9 mi. S of Rangely
- ReBecca's Hollow (UFHNH locality SCP 2019-2) : Colorado - Rio Blanco County 94047 ReBecca's Hollow, in badlands on Bureau of Land Management land, S of Rangely
- Richardoestesia
- Tyrannosauridae
- Saurornitholestinae
- Paronychodon
- Theropoda
- Theropoda
- Thescelosauridae
- Hadrosauridae
- Ceratopsidae
- Ornithischia
- Tom's Camp-O-Saur [PROXY] : Colorado - Rio Blanco County 94096 S of Rangely
Publication(s)
La base comprend 9 publication(s).
Source: The Paleobiology Database
- ↑1 2 S. Diem and J. D. Archibald. 2005. Range extension of southern chasmosaurine ceratopsian dinosaurs into northwestern Colorado. Journal of Paleontology 79(2):251-258 (https://doi.org/10.1666/0022-3360(2005)079<0251:reoscc>2.0.co;2)
- ↑1 S. G. Lucas, R. M. Sullivan, and A. P. Hunt. 2006. Re-evaluation of Pentaceratops and Chasmosaurus (Ornithischia: Ceratopsidae) in the Upper Cretaceous of the Western Interior. Late Cretaceous Vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35:367-370
- ↑1 N. R. Longrich. 2014. The horned dinosaurs Pentaceratops and Kosmoceratops from the upper Campanian of Alberta and implications for dinosaur biogeography. Cretaceous Research 51:292-308 (https://doi.org/10.1016/j.cretres.2014.06.011)
- ↑1 2 3 4 R. K. Hunt-Foster, J. R. Foster, and J. J. Eberle, A. B. Heckert, J. H. Hartman, S. D. Sroka. 2023. New paleobiotic elements of the Williams Fork Formation (Campanian-Maastrichtian) of northwestern Colorado and northeastern Utah, USA. 14th Symposium on Mesozoic Terrestrial Ecosystems and Biota. The Anatomical Record 306 (S1)
- ↑1 2 J. R. Foster and R. K. Hunt-Foster. 2015. First report of a giant neosuchian (Crocodyliformes) in the Williams Fork Formation (Upper Cretaceous: Campanian) of Colorado. Cretaceous Research 55:66-73 (https://doi.org/10.1016/j.cretres.2015.02.003)
- ↑1 N. A. Brand, A. B. Heckert, and I. Sanchez, J. R. Foster, R. K. Hunt-Foster, J. J. Eberle. 2022. New Late Cretaceous microvertebrate assemblage from the Campanian–Maastrichtian Williams Fork Formation, northwestern Colorado, USA, and its paleoenvironmental implications. Acta Palaeontologica Polonica 67 (https://doi.org/10.4202/app.00934.2021)
- ↑1 2 3 J. P. B. Crothers. 2025. Fish & Reptiles of the Rebecca’s Hollow Site, Williams Fork Formation, Late Cretaceous (Edmontonian), Colorado & ‘Between The Dinosaurs’ Toes’: Approaches to Exhibiting Microvertebrate Fossils in Museum Displays (With Emphasis on the Cretaceous Period).
- ↑1 2 C.-G. Yun. 2023. A tyrannosaurid pedal ungual from the Williams Fork Formation (Campanian) of Colorado and its implications for the biogeography of Laramidian dinosaurs. Acta Geologica Polonica 73(1):63-72 (https://doi.org/10.24425/agp.2022.140433)
- ↑1 2 E. R. Bender, T. A. Gates, and E. Johnson, L. E. Zanno. 2023. A new kritosaurin hadrosaurid (Dinosauria: Ornithopoda) from the Late Cretaceous of Colorado, USA. 14th Symposium on Mesozoic Terrestrial Ecosystems and Biota. The Anatomical Record 306 (S1)
Galerie d'image
Pas d'image.