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Marsland Formation

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Marsland Formation
Stratigraphic range: Neogene
Fossil mammal from the Marsland Formation (Middle Miocene; Nebraska)
TypeGeological 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.

Fossil content

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

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]
M. marslandensis Box Butte County, Nebraska (upper part of the formation).[3] Skulls.[3] Synonymized with M. barbouri.[4]

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.

See also

References

  1. ^ a b Schultz, C. Bertrand (Charles Bertrand); Falkenbach, Charles H. (1941). "Ticholeptinae : a new subfamily of oreodonts". Bulletin of the AMNH. 79 (1): 4–105. hdl:2246/379.
  2. ^ a b c d Tanner, Lloyd (1972-07-01). "A New Species of Menoceras from the Marsland Formation of Nebraska". Bulletin of the University of Nebraska State Museum.
  3. ^ a b c d Tanner, Lloyd (1969-01-01). "A New Rhinoceros from the Nebraska Miocene". Bulletin of the University of Nebraska State Museum.
  4. ^ a b Prothero, Donald R. (2005-03-07). The Evolution of North American Rhinoceroses. Cambridge University Press. p. 62. ISBN 978-0-521-83240-3.
  5. ^ a b Whetstone, Kenneth N. (1978). "Additional Record of the Fossil Snapping Turtle Macroclemys schmidti from the Marsland Formation (Miocene) of Nebraska with Notes on Interspecific Skull Variation within the Genus Macroclemys". Copeia. 1978 (1): 159–162. doi:10.2307/1443841. ISSN 0045-8511. JSTOR 1443841.


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