Palynology of the circum-mediterranean triassic: Phytogeographical and palaeoclimatological implications

Visscher, Henk; Zwan, C.J. van der

doi:10.1007/bf01822140

Cited by 112 publications

(43 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is not possible using light microscopy (LM) alone, and monosulcate pollen are often considered as a whole, therefore implying that they were produced by plants with uniform ecological preferences (e.g. Visscher & Van der Zwan, 1981), which may be an oversimplification. If electron microscopy [scanning electron microscopy (SEM) and transmission electron microscopy (TEM)] is involved and sufficient comparative data on in situ pollen are available, there is hope that such differentiation is feasible, although the method is time-consuming.…”

mentioning

confidence: 99%

The ultrastructure of fossil dispersed monosulcate pollen from the Early Cretaceous of Transbaikalia, Russia

Zavialova

Маркевич

Бугдаева

et al. 2011

Grana

View full text Add to dashboard Cite

mentioning

confidence: 99%

The ultrastructure of fossil dispersed monosulcate pollen from the Early Cretaceous of Transbaikalia, Russia

Zavialova

Маркевич

Бугдаева

et al. 2011

Grana

View full text Add to dashboard Cite

“…In ma jor ity of sam ples, 100 sporomorphs have been counted for quan ti ta tive anal y ses. The palaeoclimatic in ter preta tion of palynomorph as sem blages was done with the slightly mod i fied palaeoclimatological model of Visscher and Van Der Zwan (1981) (I pro posed the term "palyno-palaeoclimatic model" -PPC model). In this model, sporomorphs are di vided into the fol low ing 18 morphogroups: A -alete and monolete spores, B -trilete laevigate and api cu late spores, C -trilete verrucate, re tic u late and murornate spores, D -trilete zon ate and cingulate spores (ex clud ing Densoisporites spec i mens), E -Aratrisporites spp., and F -Porcellispora spp., which rep resent hygrophytic el e ments; H -monosulcate pol len, I -Illinites spp., Parillinites spp., and J -asaccate pol len (ex clud ing circumpollen), which are in ter me di ate el e ments; K -Ovalipollis spp., L -alete bisaccate pol len, M -taeniate bisaccate pol len, N -Triadispora spp., O -trilete bisaccate pol len, P -vesicate pol len, R -monosaccate pol len, and S -circumpollen, which rep re sent xe ro phyt ic el e ments.…”

Section: Methodsmentioning

confidence: 99%

“…De spite ef fects of ex ter nal fac tors, such as trans por ta tion or depositional en vi ron ment, the palynomorphs as sem blages re flect the com posi tion of plant com mu ni ties and, in di rectly, the en vi ron men tal changes caused by cli ma tic fluc tu a tions. Based on the anal y sis of as sem blages from Carnian evaporites and coals, Visscher and Van der Zwan (1981) pre sented a palaeoclimatological model based on hygrophytic and xe ro phyt ic el e ments (spores and pol len), char ac ter is tic for hu mid and arid cli mates. Pre dom inant xe ro phyt ic el e ments in di cate an arid cli mate, pre vail ing hygrophytic ones -a hu mid cli mate.…”

Section: Introductionmentioning

confidence: 99%

“…The xe ro phyt ic or hygrophytic char ac ter of miospores is de ter mined by their bo tan ical af fin ity (Ta ble 1) and palaeo ec ol ogy of the par ent plants. Advanced stud ies on both teshe is sues en abled to de velop the model of Visscher and Van der Zwan (1981) (see Jelen and Kušej, 1982;Heunisch, 1990;Kustatscher et al, 2010). Since 1994, I have used this method in palynological stud ies of Tri as sic de pos its from Po land ( Fig.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A record of climatic changes in the Triassic palynological spectra from Poland

Fijałkowska-Mader

2015

View full text Add to dashboard Cite

Fija³kowska-Mader, A., 2015. A re cord of cli ma tic changes in the Tri as sic palynological spec tra from Po land. Geo log i cal Quar terly, 59 (4): 615-653, doi: 10.7306/gq.1239 Based on quan ti ta tive and qual i ta tive anal y ses of Tri as sic miospore as sem blages from dif fer ent re gions of Po land, cli ma tic changes have been doc u mented. The ma te rial came from pub lished and ar chi val works of Or³owska-Zwoliñska and of the pres ent au thor. It com prises ten palynological zones dis tin guished in the Tri as sic of Po land. Two dif fer ent palynological meth ods were ap plied in this study -palyno-palaeoclimatic (PPC) model and sporomorph ecogroup (SEG) model -to ob tain palaeoclimatic and palaeoenvironmetal data.The PPC model is based on the per cent ra tio of xe ro phyt ic and hygrophytic el ements in miospore as sem blages. Dom i nance of xe ro phyt ic el e ments (spores and pol len grains of xe ro phyt ic plants) in dicates dry cli mate con di tions, and a higher ra tio of hygrophytic forms (spores and pol len grains of hygrohytic plants) re flects hu mid phases. A sig nif i cant dom i nance of xe ro phyt ic el e ments in ma jor ity of the ana lysed as sem blages sug gests a dry climate dur ing most of the Tri as sic. An in crease of the num ber of hygrophytic el e ments is ob served in the as sem blages found in the Mid dle Buntsandstein, Up per Muschelkalk, Lower Keuper (Sulechów Beds), Schilfsandstein, Jarkowo Beds and Wielichowo Beds. It marks cli mate humidification in the Olenekian, Ladinian, Mid dle Carnian, Late Norian and Rhaetian, respec tively. The SEG model, con nect ing dis persed spores and pol len with the floristic palaeocommunites that oc cu pied deter mined eco log i cal niches, was ap plied for palaeoenvironmetal in ter pre ta tion. Four SEGs were re cog nized in the Tri as sic spore-pol len as sem blages: Up land, Low land and River, Coastal, and not at trib uted. The Uppland SEG dom i nates in these as sem blages with ex cep tion of the spec tra found in the Lower and Mid dle Buntsandstein, Up per Muschelkalk, Lower Keuper, Schilfsandstein, Jarkowo Beds and Wielichowo Beds, where the Low land and River SEG oc cur more nu mer ously.

show abstract

“…Spicer and Hill 1979;Knobloch and Mai 1986;Herman and Spicer 1997;Rees et al 2000;McElwain et al 2007;Barbacka 2011;Barbacka et al 2014;Kostina and Herman 2013) and on palynomorphs (e.g. Visscher and Van der Zwan 1981;El Beialy et al 2002;Abbink 1998;Abbink et al 2004;Jasper et al 2010) for palaeoenvironmental interpretations. Moreover, qualitative and quantitative analyses on macroremains were also used to distinguish phytoprovinces (Vakhrameev 1991) and biomes (Rees et al 2000).…”

Section: Introductionmentioning

confidence: 99%

A palaeoenvironmental reconstruction of the Middle Jurassic of Sardinia (Italy) based on integrated palaeobotanical, palynological and lithofacies data assessment

Costamagna

Kustatscher

Scanu

et al. 2017

Palaeobio Palaeoenv

View full text Add to dashboard Cite

During the Jurassic, Sardinia was close to continental Europe. Emerged lands started from a single island forming in time a progressively sinking archipelago. This complex palaeogeographic situation gave origin to a diverse landscape with a variety of habitats. Collectionand literature-based palaeobotanical, palynological and lithofacies studies were carried out on the Genna Selole Formation for palaeoenvironmental interpretations. They evidence a generally warm and humid climate, affected occasionally by drier periods. Several distinct ecosystems can be discerned in this climate, including alluvial fans with braided streams (Laconi-Gadoni lithofacies), paralic swamps and coasts (Nurri-Escalaplano lithofacies), and lagoons and shallow marine environments (UssassaiPerdasdefogu lithofacies). The non-marine environments were covered by extensive lowland and a reduced coastal and tidally influenced environment. Both the river and the upland/hinterland environments are of limited impact for the reconstruction. The difference between the composition of the palynological and palaeobotanical associations evidence the discrepancies obtained using only one of those proxies. The macroremains reflect the local palaeoenvironments better, although subjected to a transport bias (e.g. missing upland elements and delicate organs), whereas the palynomorphs permit to reconstruct the regional palaeoclimate. Considering that the flora of Sardinia is the southernmost of all Middle Jurassic European floras, this multidisciplinary study increases our understanding of the terrestrial environments during that period of time.

show abstract

Palynology of the circum-mediterranean triassic: Phytogeographical and palaeoclimatological implications

Cited by 112 publications

References 3 publications

The ultrastructure of fossil dispersed monosulcate pollen from the Early Cretaceous of Transbaikalia, Russia

The ultrastructure of fossil dispersed monosulcate pollen from the Early Cretaceous of Transbaikalia, Russia

A record of climatic changes in the Triassic palynological spectra from Poland

A palaeoenvironmental reconstruction of the Middle Jurassic of Sardinia (Italy) based on integrated palaeobotanical, palynological and lithofacies data assessment

Contact Info

Product

Resources

About