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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F14%3A10286652%21RIV15-MSM-11310___
rdf:type
n14:Vysledek skos:Concept
dcterms:description
New compression leaf material of Ceratozamia (Zamiaceae) has been recognised in the European Cenozoic. A leaflet of Ceratozamia floersheimensis (Engelhardt) Kvaček was recovered among unidentified material from the Oligocene of Trbovlje, former Trifail, Slovenia, housed in old collections of the Austrian Geological Survey, Vienna. It is similar in morphology and epidermal anatomy to other specimens previously studied from the lower Oligocene of Flörsheim, Germany and Budapest, Hungary. A fragmentary leaflet assigned to C. hofmannii Ettingsh. was recovered in the uppermost part of the Most Formation (Most Basin in North Bohemia, Czech Republic) and dated by magnetostratigraphy and cyclostratigraphy to CHRON C5Cn.3n, that is, the latest early Miocene. It yielded excellently preserved epidermal structures, permitting confirmation of the generic affinity and a more precise comparison with this lower Miocene species previously known from Austria (Münzenberg, Leoben Basin) and re-investigated earlier. Both the Oligocene and Miocene populations of Ceratozamia are based on isolated disarticulated leaflets matching some living representatives in the size and slender form of the leaflets. Such ceratozamias thrive today in extratropical areas near the present limits of distribution of the genus along the Sierra Madre Orientale in north-eastern Mexico, in particular C. microstrobila Vovides & J.D. Rees and others of the C. latifolia complex, as well as C. hildae G.P. Landry & M.C. Wilson (%22bamboo cycad%22). The occurrence of Ceratozamia suggests subtropical to warm-temperate, almost frostless climate and a high amount of precipitation. The accompanied fossil vegetation of both species corresponds well with the temperature regime. While the Oligocene species in Hungary probably thrived under sub-humid conditions, the remaining occurrences of fossil Ceratozamia were connected with humid evergreen to mixed-mesophytic forests. New compression leaf material of Ceratozamia (Zamiaceae) has been recognised in the European Cenozoic. A leaflet of Ceratozamia floersheimensis (Engelhardt) Kvaček was recovered among unidentified material from the Oligocene of Trbovlje, former Trifail, Slovenia, housed in old collections of the Austrian Geological Survey, Vienna. It is similar in morphology and epidermal anatomy to other specimens previously studied from the lower Oligocene of Flörsheim, Germany and Budapest, Hungary. A fragmentary leaflet assigned to C. hofmannii Ettingsh. was recovered in the uppermost part of the Most Formation (Most Basin in North Bohemia, Czech Republic) and dated by magnetostratigraphy and cyclostratigraphy to CHRON C5Cn.3n, that is, the latest early Miocene. It yielded excellently preserved epidermal structures, permitting confirmation of the generic affinity and a more precise comparison with this lower Miocene species previously known from Austria (Münzenberg, Leoben Basin) and re-investigated earlier. Both the Oligocene and Miocene populations of Ceratozamia are based on isolated disarticulated leaflets matching some living representatives in the size and slender form of the leaflets. Such ceratozamias thrive today in extratropical areas near the present limits of distribution of the genus along the Sierra Madre Orientale in north-eastern Mexico, in particular C. microstrobila Vovides & J.D. Rees and others of the C. latifolia complex, as well as C. hildae G.P. Landry & M.C. Wilson (%22bamboo cycad%22). The occurrence of Ceratozamia suggests subtropical to warm-temperate, almost frostless climate and a high amount of precipitation. The accompanied fossil vegetation of both species corresponds well with the temperature regime. While the Oligocene species in Hungary probably thrived under sub-humid conditions, the remaining occurrences of fossil Ceratozamia were connected with humid evergreen to mixed-mesophytic forests.
dcterms:title
New fossil records of Ceratozamia (Zamiaceae, Cycadales) from the European Oligocene and lower Miocene New fossil records of Ceratozamia (Zamiaceae, Cycadales) from the European Oligocene and lower Miocene
skos:prefLabel
New fossil records of Ceratozamia (Zamiaceae, Cycadales) from the European Oligocene and lower Miocene New fossil records of Ceratozamia (Zamiaceae, Cycadales) from the European Oligocene and lower Miocene
skos:notation
RIV/00216208:11310/14:10286652!RIV15-MSM-11310___
n3:aktivita
n5:P n5:I
n3:aktivity
I, P(GA14-23108S)
n3:cisloPeriodika
2
n3:dodaniDat
n12:2015
n3:domaciTvurceVysledku
n9:9483020
n3:druhVysledku
n19:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
32390
n3:idVysledku
RIV/00216208:11310/14:10286652
n3:jazykVysledku
n10:eng
n3:klicovaSlova
Austria; Czech Republic; lower Miocene; Slovenia; Hungary; Germany; lower Oligocene; Ceratozamia; cycads
n3:klicoveSlovo
n6:Germany n6:lower%20Miocene n6:Ceratozamia n6:Austria n6:Czech%20Republic n6:cycads n6:Hungary n6:lower%20Oligocene n6:Slovenia
n3:kodStatuVydavatele
PL - Polská republika
n3:kontrolniKodProRIV
[7D6ACE85D991]
n3:nazevZdroje
Acta Palaeobotanica
n3:obor
n15:DB
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:projekt
n8:GA14-23108S
n3:rokUplatneniVysledku
n12:2014
n3:svazekPeriodika
54
n3:tvurceVysledku
Kvaček, Zlatko
s:issn
0001-6594
s:numberOfPages
17
n18:doi
10.2478/acpa-2014-0012
n17:organizacniJednotka
11310