Marsland Formation is a geologic formation in Nebraska preserving fossils dating back to the Neogene period.

Fossil content

Color key Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon MorphotaxonNotes Uncertain or tentative taxa are in small text; crossed out taxa are discredited.
TaxonReclassified taxonTaxon falsely reported as presentDubious taxon or junior synonymIchnotaxonOotaxonMorphotaxon

Mammals

Ungulates

Ungulates reported from the Marsland Formation
GenusSpeciesPresenceMaterialNotesImages
MediochoerusM. johnsoniDawes County, Nebraska (upper part of the formation).A skullA merycoidodontid.
MenocerasM. barbouriMorrill & Box Butte counties, Nebraska.Skulls.A rhinoceros.
M. falkenbachiMorrill County, Nebraska (lower part of the formation).Skulls.Synonymized with M. barbouri.
M. marslandensisBox Butte County, Nebraska (upper part of the formation).Skulls.Synonymized with M. barbouri.

Reptiles

Testudines

Testudines reported from the Marsland Formation
GenusSpeciesPresenceMaterialNotesImages
MacroclemysM. schmidtiBox Butte County, Nebraska.A fragmentary juvenile skull & an adult skull.A snapping turtle.

See also

  • Various Contributors to the Paleobiology Database. . Archived from on 25 March 2022.