Marsland Formation
Geologic formation in Nebraska, United States
From Wikipedia, the free encyclopedia
Marsland Formation is a geologic formation in Nebraska preserving fossils dating back to the Neogene period.
_(Marsland_Formation,_Middle_Miocene;_near_Agate,_Nebraska,_USA)_2_(32708793602).jpg)
| Marsland Formation | |
|---|---|
| Stratigraphic range: Neogene | |
| |
| Type | Geological formation |
| Location | |
| Region | Nebraska |
| Country | United States |
Fossil content
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Mammals
Ungulates
| Ungulates reported from the Marsland Formation | |||||
|---|---|---|---|---|---|
| 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] | _(Marsland_Formation,_Middle_Miocene;_Bridgeport_Quarries,_near_Bridgeport,_Nebraska,_USA)_1_(32849205355).jpg) | |
| M. marslandensis | Box Butte County, Nebraska (upper part of the formation).[3] | Skulls.[3] | Synonymized with M. barbouri.[4] | _(Marsland_Formation,_Middle_Miocene;_Bridgeport_Quarries,_near_Bridgeport,_Nebraska,_USA)_5_(32808353546).jpg) | |
Reptiles
Testudines
| Testudines reported from the Marsland Formation | |||||
|---|---|---|---|---|---|
| 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. | |
