caa a22 4500 388017244 CHVBK 20180307124914.0 cr unu---uuuuu 161130e199803 xx s 000 0 eng 10.1017/S0022336000036362 doi S0022336000036362 pii (NATIONALLICENCE)cambridge-10.1017/S0022336000036362 The Miocene macroflora of the northern Ogallala Group, northern Nebraska and southern South Dakota [Elektronische Daten] [Mark L. Gabel, Douglas C. Backlund, Jacob Haffner] The results of the first comprehensive paleobotanical survey of the northern portion of the late Miocene Ogallala Group are discussed. Several species of fossilized fruiting structures from vascular plants (Berriochloa, Celtis, Cryptantha, Biorbia, Lithospermum, Eleofimbris, Carex, and Cyperocarpus) in the mid- to late-Miocene are reported. Fewer taxa (12 genera) were found in the South Dakota-northern Nebraska area than have been reported previously (20 genera) from southern Nebraska-Kansas strata in the same formations and approximately the same area of exposures. Sites of Barstovian age near the Kilgore Flora site indicate that grasses were commonly found in the region. The results presented here support the hypothesis that grassland savanna vegetation was widely distributed in the northern Great Plains by the Clarendonian age. Copyright © The Paleontological Society Gabel Mark L. Department of Biology, Black Hills State University, Spearfish, SD 57799 aut Backlund Douglas C. Department of Game, Fish, and Parks, Pierre, SD 57501 aut Haffner Jacob Department of Biology, Black Hills State University, Spearfish, SD 57799 aut Journal of Paleontology Cambridge University Press 72/2(1998-03), 388-397 0022-3360 72:2<388 1998 72 JPA https://doi.org/10.1017/S0022336000036362 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022336000036362 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gabel Mark L. Department of Biology, Black Hills State University, Spearfish, SD 57799 aut NATIONALLICENCE 700 1- Backlund Douglas C. Department of Game, Fish, and Parks, Pierre, SD 57501 aut NATIONALLICENCE 700 1- Haffner Jacob Department of Biology, Black Hills State University, Spearfish, SD 57799 aut NATIONALLICENCE 773 0- Journal of Paleontology Cambridge University Press 72/2(1998-03), 388-397 0022-3360 72:2<388 1998 72 JPA CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge