Most Utah sites are in somewhat isolated high-desert regions, so go prepared to carry plenty of water, appropriate protective clothing, and a shade-providing hat. Specimens vary from a few mm to over 30 cm (12 inches). Trilobites are most commonly found in shale or mud deposits, where they can be revealed by splitting rocks and by close scrutiny of muddy areas. For dedicated trilobite collectors, there are a couple of sites that could be considered the mecca of prolific deposits, especially in Millard County near Delta, near the center of the state. In Utah alone, dozens of sites feature both flora and fauna from dozens of species. 39.1555N,-110.The number of sites and varieties of fossil genre found throughout the western states is mind-boggling. Invertebrates-arthropoda-crustacea-ostracoda mollusks-bivalvia-Eupera,Inoceramus plants-pteridophyta-cycadopsida-Tempskya(silicified) vertebrates-fish(ganoid)(scales)ġ0 km SE s20t19sr9e Near the junction of Cottonwood Creek and the San Rafael River. On Yellowstone Creek 2.3km upstream from Swift Creek campground - 40d36m49sN 110d22m04sWĬastle Dale(CottonwoodCrk+SanRafaelRiver)ġ0 km E s20t19sr9e Near the junction of Cottonwood Creek and the San Rafael River. Original got the State(WY),County(Fremont) and age(Pleistocene) wrong Vertebrates-mammals-artiodactyla-Auxontodon carnivora-Miacis insectivora-Creotarsus,Simidectes rodentia-Pareumys Invertebrates-echinoderms-crinoids-Pentacrinus mollusks-cephalopoda-belemnoideaįarm Creek Canyon is at 40.4147,-110.6730 Vertebrates-mammals-artiodactyla-camelidae-tylopoda Merycoidodon carnivora-canidae-Bassariscops Phlaocyon perissodactyla-chalicotheriidae,rhinocerotidae-Aphelops proboscidea-SerridentinusĬAUTION:Collecting vertebrate material in the US requires landowner or government permissionĪlong Farm Creek in T1nr7w-t1sr7w. Turn off 5 km E,11 km S of US50 toward mounds in cliffs N of RR tracks-Description may not be much help Vertebrates-reptilia-dinosauria-tracks collected from coal mine roofs. It's not quite clear where the 'forks' of East Fork Creek are or which peak in the area is Walcott's Ute Peak The type locality for the Langston Formaiton is in Blacksmith Fork Canyon (above the Brigham Quartzite), but the name refers to exposures on Langston Creek in the Bear River Range, West of Liberty, ID.Į at forks of East Fork on slopes of Ute Peak in 150m of limestone and shale In Langston Creek Valley in 30 meters of limestone below Spence Shale Walcott-Cambrian Geology and Paleontology P7 In Blacksmith Fork Canyon,in 300+ meters of limestone and shale Walcott-Cambrian Geology and Paleontology P8 In Blacksmith Fork Canyon,in 30 meters of limestone below Spence Shale Walcott-Cambrian Geology and Paleontology P8,25 Invertebrates(abundant)-arthropoda-trilobita-bathyuridae-Bathyuriscus Olenus,Oryctocara,Oryctocephalus,Ptychoparia,Zacanthoides brachiopoda-Micromitra Abundant and diverse Middle Cambrian fossils In Blacksmith Fork Canyon,in 10 meters of shale below Ute formation. Walcott-Cambrian Geology and Paleontology P5 Walcott-Cambrian Geology and Paleontology P9 Ichnofossils-tracks-arthropodipedida-Cruziana (worm_tracks) In Blacksmith Fork Canyon in 600+ meters of quartzite below Langston limestones SE1/4S34T11NR2E Site 1a 1.6km N of Blacksmith Fork Canyon in Left Hand Fork Canyon 41.6430 111.7042
Invertebrates-arthropoda-trilobita brachiopoda
Vertebrates-fish-osteostraci-Cephalaspis pteraspidomorphi-Protaspis SE1/4S3T10NR2E Site 1 41.6292 111.7047 in Blacksmith Fork Canyon 1km W of Shenoah Picnic Area Vertebrates-fish-actinolepidae-Simblaspis heterostraci-Cardipeltis About 800m N of the mouth of Charleys Hollow 41.6649 111.6852 Vertebrates-fish-heterostraci-Allocryptaspis pteraspidomorphi-Protaspis Vertebrates-fish-pteraspidomorphi-Protaspis NE1/2S19T13NR3E in Bear River Range In Birch Canyon in Mt Naomi Wilderness Area - 41.8571 111.7610 Invertebrates-arthropoda-trilobita-Albertelloides,Chancia,Kootenia,Nyella,Olenoides,Oryctocephalites,Oryctocephalus?,Pagetia,Paralbertella,Poliella,Ptarmigania,Ptarmiganoides Invertebrates-arthropoda-trilobita-Albertella,Albertellina,Mexicella? Invertebrates-arthropoda-Anomalocaris?,Canadaspis,Leanchoilia,Tuzoia,trilobita brachiopoda,porifera-Vauxia echinoderms worms(vermes)-priapulida plants-algae-Margaretia,Marpolia,MoraniaĮXCEPTIONALLY PRESERVED NONTRILOBITE ARTHROPODS AND ANOMALOCARIS FROM THE MIDDLE CAMBRIAN OF UTAH. US AND CANADIAN FOSSIL SITES US And Canadian Fossil Sites - Data for UTAHĭiverse faunas on W side of Wellsville Mtns in non-calcereous gray shale in middle of Spence fm (Fig.
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