Quick Links : Mindat手册 The Rock H. Currier Digital Library Mindat Newsletter [Free Download]

主页关于 Mindat Mindat手册 Mindat的历史版权 Who We Are 联系我们于 Mindat.org刊登广告

捐赠给 Mindat Corporate Sponsorship 赞助板页已赞助的板页在 Mindat刊登广告的广告商于 Mindat.org刊登广告

Learning Center What is a mineral?The most common minerals on earth Information for Educators Mindat Articles The Elements The Rock H. Currier Digital Library Geologic Time

搜索矿物的性质搜索矿物的化学 Advanced Locality Search 随意显示任何一种矿物 Random Locality 使用minID搜索邻近产地 Search Articles 搜索词汇表更多搜索选项

Mindat手册添加新照片 Rate Photos 产区编辑报告 Coordinate Completion Report 添加词汇表项目

Mining Companies 统计会员列表 Mineral Museums Clubs & Organizations 矿物展及活动 The Mindat目录表设备设置 The Mineral Quiz

照片搜索 Photo Galleries Search by Color 今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集 Photography

BETA TEST - Fossil data and pages are very much experimental and under development. Please report any problems

Bighorn Dolomite - Horseshoe Mountain, Wyoming, USA

Formation	Bighorn Dolomite
Member	Horseshoe Mountain
Age:	450 - 444 Ma Paleozoic
Interval	Maysvillian
Tectonic Setting	Cratonic basin
Lithology	limestone, dolomite/"limestone", wackestone
Number of Collections	6
Number of Occurrences	50

Recorded Sample Locations

Location	Region	Stratigraphic Name
Bighorn Formation Crinoids	Sheridan County, Wyoming, USA	Bighorn Dolomite - Horseshoe Mountain
Hunt Mountain	Sheridan County, Wyoming, USA	Bighorn Dolomite - Horseshoe Mountain
Sawmill Flats - Bighorn Dolomite	Sheridan County, Wyoming, USA	Bighorn Dolomite - Horseshoe Mountain
Dry Fork Ridge - Bighorn Dolomite	Sheridan County, Wyoming, USA	Bighorn Dolomite - Horseshoe Mountain
D1	Johnson County, Wyoming, USA	Bighorn Dolomite - Horseshoe Mountain
Hunt Mountain	Big Horn County, Wyoming, USA	Bighorn Dolomite - Horseshoe Mountain

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Dimorphosiphon sp. genus	6	Dimorphosiphonaceae : *Dimorphosiphon*	449.5 - 443.7 Ma Paleozoic
Zygospira sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Atrypida : Anazygidae : *Zygospira*	449.5 - 443.7 Ma Paleozoic
Cyclospira sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Atrypida : Cyclospiridae : *Cyclospira*	449.5 - 443.7 Ma Paleozoic
Hesperorthis pyramidalis species	7	Animalia : Brachiopoda : Rhynchonellata : Orthida : Hesperorthidae : Hesperorthis : *Hesperorthis pyramidalis*	449.5 - 443.7 Ma Paleozoic
Dinorthis occidentalis species	7	Animalia : Brachiopoda : Rhynchonellata : Orthida : Plaesiomyidae : Dinorthis : *Dinorthis occidentalis*	449.5 - 443.7 Ma Paleozoic
Plaesiomys rockymontana species	7	Animalia : Brachiopoda : Rhynchonellata : Orthida : Plaesiomyidae : Plaesiomys : *Plaesiomys rockymontana*	449.5 - 443.7 Ma Paleozoic
Diceromyonia storeya species	7	Animalia : Brachiopoda : Rhynchonellata : Orthida : Platyorthidae : Diceromyonia : *Diceromyonia storeya*	449.5 - 443.7 Ma Paleozoic
Gnamptorhynchos prayi species	7	Animalia : Brachiopoda : Rhynchonellata : Orthida : Platystrophiidae : Gnamptorhynchos : *Gnamptorhynchos prayi*	449.5 - 443.7 Ma Paleozoic
Platystrophia sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Platystrophiidae : *Platystrophia*	449.5 - 443.7 Ma Paleozoic
Hiscobeccus gigas species	7	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Rhynchotrematidae : Hiscobeccus : *Hiscobeccus gigas*	449.5 - 443.7 Ma Paleozoic
Hypsiptycha anticostiensis species	7	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Rhynchotrematidae : Hypsiptycha : *Hypsiptycha anticostiensis*	449.5 - 443.7 Ma Paleozoic
Hypsiptycha neenah species	7	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Rhynchotrematidae : Hypsiptycha : *Hypsiptycha neenah*	449.5 - 443.7 Ma Paleozoic
Rhynchotrema iowense species	7	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Rhynchotrematidae : Rhynchotrema : *Rhynchotrema iowense*	449.5 - 443.7 Ma Paleozoic
Megamyonia nitens species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Rafinesquinidae : Megamyonia : *Megamyonia nitens*	449.5 - 443.7 Ma Paleozoic
Eochonetes maearum species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Sowerbyellidae : Eochonetes : *Eochonetes maearum*	449.5 - 443.7 Ma Paleozoic
Nasutimena fluctuosa species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophomenidae : Nasutimena : *Nasutimena fluctuosa*	449.5 - 443.7 Ma Paleozoic
Oepikina pergibbosa species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophomenidae : Oepikina : *Oepikina pergibbosa*	449.5 - 443.7 Ma Paleozoic
Rugomena planocorrugata species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophomenidae : Rugomena : *Rugomena planocorrugata*	449.5 - 443.7 Ma Paleozoic
Sceptropora facula species	7	Animalia : Bryozoa : Stenolaemata : Cryptostomida : Arthrostylidae : Sceptropora : *Sceptropora facula*	449.5 - 443.7 Ma Paleozoic
Batostoma sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Trematoporidae : *Batostoma*	449.5 - 443.7 Ma Paleozoic
Astraspis desiderata species	7	Animalia : Chordata : Astraspididae : Astraspis : *Astraspis desiderata*	449.5 - 443.7 Ma Paleozoic
Eriptychius americanus species	7	Animalia : Chordata : Pteraspidomorpha : Astraspidiformes : Eriptychius : *Eriptychius americanus*	449.5 - 443.7 Ma Paleozoic
Favosites sp. genus	6	Animalia : Cnidaria : Anthozoa : Favositidae : *Favosites*	449.5 - 443.7 Ma Paleozoic
Paleofavosites prayi species	7	Animalia : Cnidaria : Anthozoa : Favositidae : Paleofavosites : *Paleofavosites prayi*	449.5 - 443.7 Ma Paleozoic
Halysites robustus species	7	Animalia : Cnidaria : Anthozoa : Halysitidae : Catenipora : *Halysites robustus*	449.5 - 443.7 Ma Paleozoic
Calapoecia coxi species	7	Animalia : Cnidaria : Anthozoa : Favositidae : Calapoecia : *Calapoecia coxi*	449.5 - 443.7 Ma Paleozoic
Holophragma sp. genus	6	Animalia : Cnidaria : Anthozoa : Lykophyllidae : *Holophragma*	449.5 - 443.7 Ma Paleozoic
Palaeophyllum gracile species	7	Animalia : Cnidaria : Anthozoa : Streptelasmatidae : Palaeophyllum : *Palaeophyllum gracile*	449.5 - 443.7 Ma Paleozoic
Palaeophyllum humei species	7	Animalia : Cnidaria : Anthozoa : Streptelasmatidae : Palaeophyllum : *Palaeophyllum humei*	449.5 - 443.7 Ma Paleozoic
Streptelasma sp. genus	6	Animalia : Cnidaria : Anthozoa : Streptelasmatidae : *Streptelasma*	449.5 - 443.7 Ma Paleozoic
Dendrocrinus sp. genus	6	Animalia : Echinodermata : Crinoidea : Dendrocrinidae : *Dendrocrinus*	452 - 449.5 Ma Late/Upper Ordovician
Ectenocrinus sp. genus	6	Animalia : Echinodermata : Crinoidea : Homocrinidae : *Ectenocrinus*	452 - 449.5 Ma Late/Upper Ordovician
Macrostylocrinus wyomingensis species	7	Animalia : Echinodermata : Crinoidea : Patelliocrinidae : Macrostylocrinus : *Macrostylocrinus wyomingensis*	452 - 449.5 Ma Late/Upper Ordovician
Cupulocrinus latibrachiatus species	7	Animalia : Echinodermata : Crinoidea : Cupulocrinidae : Cupulocrinus : *Cupulocrinus latibrachiatus*	452 - 449.5 Ma Late/Upper Ordovician

References

Ross R. J. (1957) Ordovician fossils from wells in the Williston Basin eastern Montana, United States Geological Survey Bulletin 1021 M, 439-507

Macomber R. W. (1970) Articulate Brachiopods from the Upper Bighorn Formation (Late Ordovician) of Wyoming, Journal of Paleontology 44 3, 416-450

Kolata D. R. (1976) Crinoids from the Upper Ordovician Bighorn Formation of Wyoming, Journal of Paleontology 50 3, 444-453

Gierlowski T.C., Langenheim, Jr. R. L. (1985) Corals from the Late Ordovician Horseshoe Mountain Member, Bighorn Dolomite, Bighorn Mountains, Sheridan County, Wyoming, Wyoming Geological Association Earth Science Bulletin 18, 1-21

Boyd D. W. (2007) Morphology and Diagenesis of Dimorphosiphon talbotorum n. sp., an Ordovician Skeleton-Building Alga (Chlorophyta: Dimorphosiphonaceae), Journal of Paleontology 81 1

Bauer J. E., Stigall A. L. (2016) A combined morphometric and phylogenetic revision of the Late Ordovician brachiopod genera Eochonetes and Thaerodonta, Journal of Paleontology 90 5, 888-909 doi:10.1017/jpa.2016.56

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

Quick NavTop Recorded Sample Locations Recorded Fossils References

Go to top of page