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North Stillwater Mining District, Stillwater County, Montana, USAi
Regional Level Types
North Stillwater Mining DistrictMining District
Stillwater CountyCounty
MontanaState
USACountry

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List of minerals for each chemical element

Fossils

There are 3 fossil localities from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences62
Youngest Fossil Listed70.6 Ma (Late/Upper Cretaceous)
Oldest Fossil Listed83.5 Ma (Late/Upper Cretaceous)
Stratigraphic Units
UnitNo. OccurrencesAge
Montana - Bearpaw Shale1172.1 - 66 Ma (Late/Upper Cretaceous)
Montana - Judith River5183.5 - 70.6 Ma (Late/Upper Cretaceous)
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Ammonoidea
order
Animalia : Mollusca : Cephalopoda : Ammonoidea83.5 - 70.6 Ma
Late/Upper Cretaceous
Scaphites
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Scaphitidae : Scaphites83.5 - 70.6 Ma
Late/Upper Cretaceous
Bivalvia
class
Animalia : Mollusca : Bivalvia83.5 - 70.6 Ma
Late/Upper Cretaceous
Hybodus
genus
Animalia : Chordata : Chondrichthyes : Hybodontiformes : Hybodontidae : Hybodus83.5 - 70.6 Ma
Late/Upper Cretaceous
Odontaspis
genus
Animalia : Chordata : Elasmobranchii : Lamniformes : Odontaspididae : Odontaspis83.5 - 70.6 Ma
Late/Upper Cretaceous
Ischyrhiza
genus
Animalia : Chordata : Chondrichthyes : Sclerorhynchiformes : Sclerorhynchidae : Ischyrhiza83.5 - 70.6 Ma
Late/Upper Cretaceous
Protoplatyrhina
genus
Animalia : Chordata : Chondrichthyes : Rajiformes : Protoplatyrhina83.5 - 70.6 Ma
Late/Upper Cretaceous
Myledaphus
genus
Animalia : Chordata : Elasmobranchii : Rhinopristiformes : Rhinobatidae : Myledaphus83.5 - 70.6 Ma
Late/Upper Cretaceous
Acipenser
genus
Animalia : Chordata : Actinopteri : Acipenseriformes : Acipenseridae : Acipenser83.5 - 70.6 Ma
Late/Upper Cretaceous
Lepisosteus
genus
Animalia : Chordata : Actinopterygii : Lepisosteiformes : Lepisosteidae : Lepisosteus83.5 - 70.6 Ma
Late/Upper Cretaceous
Belonostomus
genus
Animalia : Chordata : Actinopteri : Aspidorhynchidae : Belonostomus83.5 - 70.6 Ma
Late/Upper Cretaceous
Paralbula
genus
Animalia : Chordata : Actinopteri : Elopiformes : Phyllodontidae : Paralbula83.5 - 70.6 Ma
Late/Upper Cretaceous
Crocodylia
unranked clade
Animalia : Chordata : Reptilia : Crocodylia83.5 - 70.6 Ma
Late/Upper Cretaceous
Opisthotriton
genus
Animalia : Chordata : Osteichthyes : Proteida : Batrachosauroididae : Opisthotriton83.5 - 70.6 Ma
Late/Upper Cretaceous
Scapherpeton
genus
Animalia : Chordata : Osteichthyes : Caudata : Scapherpetontidae : Scapherpeton83.5 - 70.6 Ma
Late/Upper Cretaceous
Boremys
genus
Animalia : Chordata : Reptilia : Testudines : Baenidae : Boremys83.5 - 70.6 Ma
Late/Upper Cretaceous
Champsosaurus
genus
Animalia : Chordata : Reptilia : Champsosauridae : Champsosaurus83.5 - 70.6 Ma
Late/Upper Cretaceous
Mosasauridae
family
Animalia : Chordata : Reptilia : Squamata : Mosasauridae83.5 - 70.6 Ma
Late/Upper Cretaceous
Theropoda
unranked clade
Animalia : Chordata : Saurischia : Theropoda83.5 - 70.6 Ma
Late/Upper Cretaceous
Hadrosauridae
family
Animalia : Chordata : Reptilia : Dinosauria : Hadrosauridae83.5 - 70.6 Ma
Late/Upper Cretaceous
Panoplosaurus
genus
Animalia : Chordata : Reptilia : Dinosauria : Nodosauridae : Panoplosaurus83.5 - 70.6 Ma
Late/Upper Cretaceous
Ankylosauridae
family
Animalia : Chordata : Reptilia : Dinosauria : Ankylosauridae83.5 - 70.6 Ma
Late/Upper Cretaceous
Centrosaurus
genus
Animalia : Chordata : Reptilia : Dinosauria : Ceratopsidae : Centrosaurus83.5 - 70.6 Ma
Late/Upper Cretaceous
Cimexomys
genus
Animalia : Chordata : Mammalia : Taeniolabidae : Cimexomys83.5 - 70.6 Ma
Late/Upper Cretaceous
Mesodma
genus
Animalia : Chordata : Mammalia : Ptilodontidae : Mesodma83.5 - 70.6 Ma
Late/Upper Cretaceous
Meniscoessus
genus
Animalia : Chordata : Mammalia : Taeniolabididae : Meniscoessus83.5 - 70.6 Ma
Late/Upper Cretaceous
Cimolomys
genus
Animalia : Chordata : Mammalia : Cimolomyidae : Cimolomys83.5 - 70.6 Ma
Late/Upper Cretaceous
Alphadon
genus
Animalia : Chordata : Mammalia : Didelphimorphia : Didelphidae : Alphadon83.5 - 70.6 Ma
Late/Upper Cretaceous
Gypsonictops
genus
Animalia : Chordata : Mammalia : Pilosa : Gypsonictopidae : Gypsonictops83.5 - 70.6 Ma
Late/Upper Cretaceous
Gryposaurus
genus
Animalia : Chordata : Reptilia : Dinosauria : Hadrosauridae : Gryposaurus83.5 - 70.6 Ma
Late/Upper Cretaceous
Lambeosaurinae
subfamily
Animalia : Chordata : Ornithischia : Hadrosauridae : Lambeosaurinae83.5 - 70.6 Ma
Late/Upper Cretaceous
Dromaeosaurus albertensis
species
Animalia : Chordata : Reptilia : Dinosauria : Dromaeosauridae : Dromaeosaurus : Dromaeosaurus albertensis83.5 - 70.6 Ma
Late/Upper Cretaceous
Saurornitholestes langstoni
species
Animalia : Chordata : Saurischia : Avetheropoda : Dromaeosauridae : Saurornitholestes : Saurornitholestes langstoni83.5 - 70.6 Ma
Late/Upper Cretaceous
Troodon formosus
species
Animalia : Chordata : Saurischia : Avetheropoda : Troodontidae : Troodon : Troodon formosus83.5 - 70.6 Ma
Late/Upper Cretaceous
Sequoia
genus
Plantae : Tracheophyta : Pinopsida : Pinales : Cupressaceae : Sequoia83.5 - 70.6 Ma
Late/Upper Cretaceous
Trionychinae
unranked clade
Animalia : Chordata : Reptilia : Testudines : Trionychidae : Trionychinae83.5 - 70.6 Ma
Late/Upper Cretaceous
Anguioidea
superfamily
Animalia : Chordata : Reptilia : Squamata : Anguioidea83.5 - 70.6 Ma
Late/Upper Cretaceous
Richardoestesia gilmorei
species
Animalia : Chordata : Reptilia : Dinosauria : Dromaeosauridae : Richardoestesia : Richardoestesia gilmorei83.5 - 70.6 Ma
Late/Upper Cretaceous
Teleostei
unranked clade
Animalia : Chordata : Actinopteri : Teleostei83.5 - 70.6 Ma
Late/Upper Cretaceous
Eucrossorhinus
genus
Animalia : Chordata : Chondrichthyes : Orectolobiformes : Orectolobidae : Eucrossorhinus83.5 - 70.6 Ma
Late/Upper Cretaceous
Cyclurus
genus
Animalia : Chordata : Actinopteri : Amiiformes : Amiidae : Cyclurus83.5 - 70.6 Ma
Late/Upper Cretaceous
Squalicorax pristodontus
species
Animalia : Chordata : Chondrichthyes : Lamniformes : Anacoracidae : Squalicorax : Squalicorax pristodontus83.5 - 70.6 Ma
Late/Upper Cretaceous
Baculites compressus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Baculitidae : Baculites : Baculites compressus83.5 - 70.6 Ma
Late/Upper Cretaceous
Metatheria
subclass
Animalia : Chordata : Mammalia : Metatheria83.5 - 70.6 Ma
Late/Upper Cretaceous
Labrodioctes montanensis
species
Animalia : Chordata : Reptilia : Squamata : Necrosauridae : Labrodioctes : Labrodioctes montanensis83.5 - 70.6 Ma
Late/Upper Cretaceous
Pediomyidae
unranked clade
Animalia : Chordata : Mammalia : Pediomyidae83.5 - 70.6 Ma
Late/Upper Cretaceous
Axestemys splendidus
species
Animalia : Chordata : Reptilia : Testudines : Trionychidae : Axestemys : Axestemys splendidus83.5 - 70.6 Ma
Late/Upper Cretaceous
Fossil LocalitiesClick to show 3 fossil localities

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