Cedar Mountain

209 occ. 91 taxa (19 genera) 1 countries

Description

The Cedar Mountain Formation is the name given to a distinctive sedimentary geologic formation in eastern Utah, spanning most of the early and mid-Cretaceous. The formation was named for Cedar Mountain in northern Emery County, Utah, where William Lee Stokes first studied the exposures in 1944.

Genera

19 genera

Tenontosaurus

Dinosaurs

Valid 4 occ. · 121 Ma

Paronychodon

Dinosaurs

Valid 3 occ. · 155 Ma

Richardoestesia

Dinosaurs

Valid 3 occ. · 155 Ma

Deinonychus

Dinosaurs

Valid 2 occ. · 143 Ma

Sauropelta

Dinosaurs

Valid 2 occ. · 121 Ma

Brontopodus

Dinosaurs

Valid Ichnogenus 2 occ. · 201 Ma

Macroelongatoolithus

Dinosaurs

Valid Formal taxon 2 occ. · 113 Ma

Utahraptor

Dinosaurs

Valid 2 occ. · 137 Ma

Caririchnium

Dinosaurs

Valid Ichnogenus Formal taxon 1 occ. · 101 Ma

Carmelopodus

Dinosaurs

Valid Ichnogenus Formal taxon 1 occ. · 201 Ma

Hoplitosaurus

Dinosaurs

Valid 1 occ. · 126 Ma

Falcarius

Dinosaurs

Valid 1 occ. · 143 Ma

Acrocanthosaurus

Dinosaurs

Valid 1 occ. · 121 Ma

Tetrapodosaurus

Dinosaurs

Valid Ichnogenus Formal taxon 1 occ. · 171 Ma

Dromaeosauripus

Dinosaurs

Valid Ichnogenus Formal taxon 1 occ. · 126 Ma

Stegosaurus

Dinosaurs

Valid 1 occ. · 162 Ma

Irenesauripus

Dinosaurs

Valid Ichnogenus Formal taxon 1 occ. · 149 Ma

Yurgovuchia

Dinosaurs

Valid 1 occ. · 139 Ma

Iguanacolossus

Dinosaurs

Valid 1 occ. · 139 Ma

News 1

Peloroplites: Beast of the Week

This week we will be checking out a large tank dinosaur. Enter Peloroplites cedrimontanus!Peloroplites was a plant-eating dinosaur that lived in what is now Utah, USA, during the Cretaceous period, between 98 and 93 million years ago. From snout to tail it would have measured about 20 feet (6m) long. It's genus name translates to "Giant Hoplite" in reference to hoplites, the ancient Greek soldiers who famously carried spears and large shields. The species name translates to "Cedar Mountain"

19/04/2026 prehistoricbeastoftheweek

click to enlarge

Diagram depicting the currently named Dinosauria from the Early Cretaceous Cedar Mountain Formation of Utah. Dinosaur taxa: Cedarosaurus weiskopfae → Grand County locality.[1] Length = 15 meters.[2] Cedrorestes crichtoni → Dave's Camp Site locality.[3] Length = 6 meters.[4] Falcarius utahensis → Crystal Geyser Quarry & Suarez Site/Quarry localities.[5] Length = 5 meters.[5] Gastonia burgei → Gaston Quarry, Dalton Wells, Doelling's Bowl localities.[6] Length = 5 meters.[2] Geminiraptor suarezarum → Suarez Site/Quarry locality.[7] Length = 1.5 meters.[4] Hippodraco scutodens → Andrew's Site locality.[8] Length = 4.5 meters.[8] Iguanacolossus fortis → Don's Ridge & Doelling's Bowl localities.[8][6] Length = 9 meters.[8] Martharaptor greenriverensis → Hayden-Corbett Site.[9] Length = Extrapolated after relatives. Mierasaurus bobyoungi → Doelling’s Bowl locality.[10] Length = ∼9 meters.[10][11] Moabosaurus utahensis → Dalton Wells locality.[12] Length = 9.75 meters.[12] Nedcolbertia justinhofmanni → Dalton Wells & Gaston Quarry localities.[13] Length = ∼3 meters.[13] Utahraptor ostrommaysi → Dalton Wells, Gaston Quarry, Stikes Quarry, Utahraptor Ridge localities.[14][6] Length = 5.5 meters.[2] Yurgovuchia doellingi → Don’s Place - Doelling’s Bowl locality.[15] Length = 2.5 meters.[15] References ↑ (1999). "New sauropod from the Lower Cretaceous of Utah, USA". Oryctos 2: 21–37. ↑ a b c (2016) The Princeton Field Guide to Dinosaurs (2nd ed.), Princeton: Princeton University Press ISBN: 9780691167664. ↑ "A possible new basal hadrosaur from the Lower Cretaceous Cedar Mountain Formation of Eastern Utah" in (2007) Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs, Bloomington and Indianapolis: Indiana University Press, pp. 79–89 DOI: 10.2307/j.ctt1zxz1md.10. ISBN: 0-253-34817-X. ↑ a b (2007) Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages, Random House ISBN: 9780375824197. Genus List for Holtz 2012 Weight Information ↑ a b (2010). "Osteology of Falcarius utahensis (Dinosauria: Theropoda): characterizing the anatomy of basal therizinosaurs". Zoological Journal of the Linnean Society 158 (1): 196–230. DOI:10.1111/j.1096-3642.2009.00464.x. ↑ a b c (2016). "The Lower Cretaceous in East-Central Utah—The Cedar Mountain Formation and its Bounding Strata". Geology of the Intermoutain West 3: 1-130. ↑ (2010). "A New Troodontid Theropod Dinosaur from the Lower Cretaceous of Utah". PLOS ONE 5 (12): e14329. DOI:10.1371/journal.pone.0014329. PMID 21179513. PMC: 3002269. ↑ a b c d (2010). "New Basal Iguanodonts from the Cedar Mountain Formation of Utah and the Evolution of Thumb-Spiked Dinosaurs". PLOS ONE 5 (11): e14075. DOI:10.1371/journal.pone.0014075. PMID 21124919. PMC: 2989904. ↑ (2012). "Martharaptor greenriverensis, a New Theropod Dinosaur from the Lower Cretaceous of Utah". PLOS ONE 7 (8): e43911. DOI:10.1371/journal.pone.0043911. PMID 22952806. PMC: 3430620. ↑ a b (2017). "Descendants of the Jurassic turiasaurs from Iberia found refuge in the Early Cretaceous of western USA". Scientific Reports 7 (1): 14311. DOI:10.1038/s41598-017-14677-2. PMID 29085006. PMC: 5662694. ↑ (2020) Dinosaur Facts and Figures: The Sauropods and Other Sauropodomorphs, Princeton: Princeton University Press ISBN: 9780691202976. ↑ a b (2017). "Moabosaurus Utahensis, N. Gen., N. SP., A New Sauropod From The Early Cretaceous (Aptian) of North America". Contributions from the Museum of Paleontology, University of Michigan 32 (11): 189–243. ↑ a b (1998). "A small coelurosaurian theropod from the Yellow Cat Member of the Cedar Mountain Formation (Lower Cretaceous, Barremian) of eastern Utah". New Mexico Museum of Natural History and Science Bulletin 14: 239–248. ↑ (1993). "A large dromaeosaurid (Theropoda) from the Lower Cretaceous of Eastern Utah". Hunteria 2 (10): 1–16. ↑ a b (2012). "New Dromaeosaurids (Dinosauria: Theropoda) from the Lower Cretaceous of Utah, and the Evolution of the Dromaeosaurid Tail". PLOS ONE 7 (5): e36790. DOI:10.1371/journal.pone.0036790. PMID 22615813. PMC: 3352940. © PaleoNeolitic · CC BY-SA 4.0 · Wikipedia