Marsland Formation | |
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Stratigraphic range: Neogene | |
Type | Geological formation |
Location | |
Region | Nebraska |
Country | United States |
The Marsland Formation is a geologic formation in Nebraska. It preserves fossils dating back to the Neogene period.
Color key
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Notes Uncertain or tentative taxa are in small text; |
Ungulates reported from the Marsland Formation | |||||
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Genus | Species | Presence | Material | Notes | Images |
Mediochoerus | M. johnsoni | Dawes County, Nebraska (upper part of the formation).[1] | A skull[1] | A merycoidodontid. | |
Menoceras | M. barbouri | Morrill & Box Butte counties, Nebraska.[2][3] | Skulls.[2][3] | A rhinoceros. | |
M. falkenbachi | Morrill County, Nebraska (lower part of the formation).[2] | Skulls.[2] | Synonymized with M. barbouri.[4] | ||
M. marslandensis | Box Butte County, Nebraska (upper part of the formation).[3] | Skulls.[3] | Synonymized with M. barbouri.[4] |
Testudines reported from the Marsland Formation | |||||
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Genus | Species | Presence | Material | Notes | Images |
Macroclemys | M. schmidti | Box Butte County, Nebraska.[5] | A fragmentary juvenile skull & an adult skull.[5] | A snapping turtle. |