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Inyan Kara - Lakota, South Dakota, USA

GroupInyan Kara
FormationLakota
Member(s)Chilson
Fuson
Age:145 - 125 Ma
Early/Lower Cretaceous
IntervalLate Berriasian - Early Barremian
Lithologysandstone
Number of Collections1
Number of Occurrences2

Recorded Sample Locations

LocationRegionStratigraphic Name
Near the mouth of Hell CanyonFall River County, South Dakota, USAInyan Kara - Lakota - Chilson
Roadcut along Stagebarn Canyon RoadMeade County, South Dakota, USAInyan Kara - Lakota - Fuson
Van der Voort locality Meade County, South Dakota, USAInyan Kara - Lakota
Hell CanyonFall River County, South Dakota, USAInyan Kara - Lakota - Chilson

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Inyan Kara - Lakota - Chilson145 - 133 Ma
Early/Lower Cretaceous
mudstone/sandstone, conglomerate/sandstone7
Inyan Kara - Lakota - Fuson140 - 125 Ma
Early/Lower Cretaceous
sandstone5

Recorded Fossils

Accepted NameHierarchyAge
Lepidotes sp.
genus
6Animalia : Chordata : Actinopterygii : Lepisosteiformes : Lepidotes145 - 125.45 Ma
Early/Lower Cretaceous
Tribosphenida
subclass
3.3Animalia : Chordata : Mammalia : Tribosphenida140.2 - 125.45 Ma
Early/Lower Cretaceous
Triconodontidae
family
5Animalia : Chordata : Mammalia : Triconodontidae140.2 - 125.45 Ma
Early/Lower Cretaceous
Passumys angelli
species
7Animalia : Chordata : Mammalia : Passumys : Passumys angelli145 - 136.4 Ma
Early/Lower Cretaceous
Bolodon hydei
species
7Animalia : Chordata : Mammalia : Bolodontidae : Bolodon : Bolodon hydei145 - 136.4 Ma
Early/Lower Cretaceous
Lakotalestes luoi
species
7Animalia : Chordata : Mammalia : Dryolestidae : Lakotalestes : Lakotalestes luoi145 - 136.4 Ma
Early/Lower Cretaceous
Zatheria
unranked clade
99Animalia : Chordata : Mammalia : Zatheria140.2 - 125.45 Ma
Early/Lower Cretaceous
Infernolestes rougieri
species
7Animalia : Chordata : Mammalia : Spalacotheriidae : Infernolestes : Infernolestes rougieri145 - 136.4 Ma
Early/Lower Cretaceous
Albanerpetontidae
family
5Animalia : Chordata : Amphibia : Gymnophiona : Albanerpetontidae145 - 136.4 Ma
Early/Lower Cretaceous
Testudinata
unranked clade
99Animalia : Chordata : Reptilia : Protochelys : Testudinata145 - 125.45 Ma
Early/Lower Cretaceous
Neosauropoda
unranked clade
99Animalia : Chordata : Saurischia : Bothriospondylus : Neosauropoda145 - 132.9 Ma
Early/Lower Cretaceous

References

Martin J. E., Rich F. J. (1987) Additional fossil vertebrates from the Early Cretaceous Lakota Formation in the Black Hills, South Dakota, Proceedings of the North Dakota Academy of Science; 79th annual meeting, Moorhead, MN 41, 66
Gardner J. D., DeMar D. E. (2013) Mesozoic and Palaeocene lissamphibian assemblages of North America: a comprehensive review, Palaeobiodiversity and Palaeoenvironments 93, 459-515
Cifelli R. L., Davis B. M., et al (2014) Earliest Cretaceous mammals from the western United States, Acta Palaeontologica Polonica 59 1, 31-52 doi:10.4202/app.2012.0089
D'Emic M. D., Foster J. R. (2016) The oldest Cretaceous North American sauropod dinosaur, Historical Biology 28 4, 470-478 doi:10.1080/08912963.2014.976817
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!
 
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