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Akademický článek

Integrated geochronological and chemostratigraphic study of middle Miocene strata (Ogallala Group) at the eastern margin of the North American Great Plains

Autor: Jon J. Smith, R.M. Joeckel, Holly L. Field, Greg A. Ludvigson, Andreas Möller, Anthony L. Layzell, Shane T. Tucker

Publikováno v: Evolving Earth, Vol 3, Iss , Pp 100050- (2025)

Global and regional shifts in climate and environmental conditions during the Miocene gradually gave rise to the grassland biomes that now dominate the modern North American Great Plains. Strata comprising the Ogallala Group provide critical informat

Externí odkaz: https://doaj.org/article/b2627c56054641ae87daa50c008ff2ec

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Akademický článek

Ungulates of the middle Miocene Monarch Mill Formation, Churchill County, Nevada, USA

Autor: KENT S. SMITH, NICHOLAS J. CZAPLEWSKI, MARGERY C. COOMBS

Publikováno v: Acta Palaeontologica Polonica, Vol 67, Iss 1, Pp 239-256 (2022)

A middle Miocene, early Barstovian land mammal age vertebrate assemblage, the Eastgate local fauna (LF), is known in the basal-most part of the Monarch Mill Formation. This rich assemblage of fossil vertebrates occurs within the Middlegate Basin in C

Externí odkaz: https://doaj.org/article/45eae095918741ac88bdb41f7cb1a221

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Akademický článek

Middle Miocene carnivorans from the Monarch Mill Formation, Nevada

Autor: Kent Smith, Nicholas Czaplewski, Richard Cifelli

Publikováno v: Acta Palaeontologica Polonica, Vol 61, Iss 1, Pp 231-252 (2016)

he lowest part of the Monarch Mill Formation in the Middlegate basin, west-central Nevada, has yielded a middle Miocene (Barstovian Land Mammal Age) vertebrate assemblage, the Eastgate local fauna. Paleobotanical evidence from nearby, nearly contempo

Externí odkaz: https://doaj.org/article/6a6ed6f14dfc4db5aca023a7747c1667

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Akademický článek

The first tetrapod from the mid-Miocene Clarkia lagerstätte (Idaho, USA)

Autor: Jonathan J. M. Calede, John D. Orcutt, Winifred A. Kehl, Bill D. Richards

Publikováno v: PeerJ, Vol 6, p e4880 (2018)

The Clarkia lagerstätte (Latah Formation) of Idaho is well known for its beautifully preserved plant fossils as well as a fauna of insects and fish. Here we present the first known tetrapod fossil from these deposits. This specimen, recovered from t

Externí odkaz: https://doaj.org/article/7be3a93adf2d486ca7da6fb4ac0115d4

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Akademický článek

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Cormohipparion quinni (Mammalia, Equidae, Hipparionini) del Mioceno Medio (Barstoviano Tardío) del Norte de Costa Rica

Autor: Miller, Stephanie, Valerio, Ana L., Sudasassi, Arturo, Laurito, César A.

Publikováno v: Central American Journal of Geology; No. 66 (2022): January-June; 1-8
Revista Geológica de América Central; Núm. 66 (2022): Enero-Junio; 1-8
Portal de Revistas UCR
Universidad de Costa Rica
instacron:UCR

For the first time the species Cormohipparion quinni Woodburne 1996 is recorded for the Late Barstovian of Central America and Costa Rica. This finding constitutes a new clue about the paleobiogeographical pattern of the Middle Miocene terrestrial ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::fdb9cb513cea58d1b501c15be5ef8d5d
https://revistas.ucr.ac.cr/index.php/geologica/article/view/49763