scispace - formally typeset
Search or ask a question

Showing papers in "Review of Palaeobotany and Palynology in 2000"


Journal ArticleDOI
TL;DR: Morphological variations are examined in the dinoflagellate cysts Spiniferites spp.

127 citations


Journal ArticleDOI
TL;DR: The high taxonomic diversity of archaeological charcoal samples and numerous fragments showing traces of decay before charring suggests that aleatory gathering of dead wood constituted the main source of firewood for fisher-gatherer-hunters populations.

100 citations


Journal ArticleDOI
TL;DR: This contribution presents a summary of the current knowledge of different plants that grew closely associated with Psaronius trunks in the Early Permian petrified forest of Chemnitz (Saxony, Germany), and plant-animal interactions demonstrate the role of Psaronii as an ecosystem unto itself.

89 citations


Journal ArticleDOI
TL;DR: Silicified conifer woods are very common in the mid-Cretaceous Triton Point Member of the Neptune Glacier Formation (Fossil Bluff Group), SE Alexander Island, Antarctica and were classified in terms of five form taxa using a quantitative approach.

88 citations


Journal ArticleDOI
TL;DR: The definition of the term cryptospore is amended to include only spores thought to be produced by embryophytes and to exclude all enigmatic palynomorphs, and cryptospores are included here in the miospore group.

86 citations


Journal ArticleDOI
TL;DR: The composition of modern pollen spectra corresponds well with the distribution of the pollen producers, and most pollen assemblages were generally dominated by Pinus, but those west of the Cascade Range were dominated by Alnus.

85 citations


Journal ArticleDOI
TL;DR: Six acritarch species from the Lükati Formation were studied using a combination of techniques, including transmitted light, scanning electron (SEM) and transmission electron (TEM) microscopy, which revealed a substantial variation in wall ultrastructure among acritarchs.

84 citations


Journal ArticleDOI
TL;DR: The composition of this palynoplankton indicates a fairly good faunal and phytoplankton recovery after the early Hirnantian climatic stress, and a new species of chitinozoan, Spinachitina oulebsiri sp.

82 citations


Journal ArticleDOI
Jiří Kvaček1
TL;DR: The ovuliferous cones of Alvinia differ from similar cones of the Cheirolepidiaceae, Hirmeriella and Tomaxellia, mainly in a high state of unification of the ovULiferous cone scale, reduction of appendages and in a presence of the protostigmatic funnel-like structure.

74 citations


Journal ArticleDOI
TL;DR: Chemical analyses of microfossils from the Lower Cambrian Buen Formation of North Greenland confirmed the presence of the dinoflagellate-related biomarkers at a second Early Cambrian locality, and supported previously made suggestions that acritarchs include microorganisms of different biological affinities.

72 citations


Journal ArticleDOI
TL;DR: The composition of this assemblage and the anatomy of the woods indicate a seasonal and humid warm-temperate to subtropical climate.

Journal ArticleDOI
TL;DR: Four assemblage groups of cyst taxa with similar environmental affinities related to specific water masses/currents can be distinguished and have potential for palaeoenvironmental reconstruction.

Journal ArticleDOI
TL;DR: The pollen content of snow, deposited at the summit of three ice caps and a small glacier in the Canadian Arctic and at one ice cap in the Russian Arctic, was determined for periods ranging from one to 13 years as discussed by the authors.

Journal ArticleDOI
TL;DR: A total of 23 pollen diagrams [stored in the Alpine Palynological Data-Base (ALPADABA), Geobotanical Institute, Bern] cover the last 100 to over 1000 years as mentioned in this paper.

Journal ArticleDOI
TL;DR: Comparison of four pollen records from savanna sites shows that pollen of savanna vegetation is markedly underrepresented in lake sediments when the lake lies within the gallery forest, indicating a significant underrepresentation of the savanna ecosystem in river-transported pollen assemblages.

Journal ArticleDOI
TL;DR: Modern soil and litter samples from southeastern Cameroon, collected along a continuous forest-savanna transect, were analysed for pollen content to define modern pollen-vegetation relationships and defined inside the forest ecosystem more successional vegetation communities than the botanical surveys allowed.

Journal ArticleDOI
TL;DR: Palaeogeographical variation in the distribution of plant microfossils and megafossils is interpreted as reflecting differences between the flora of the lowland floodplain and inland intermontaine basins, although this is to a certain extent overprinted by variation due to localized differences in environmental conditions.

Journal ArticleDOI
TL;DR: A reappraisal of chitinozoan distribution across the Ordovician-Silurian boundary on the Island of Anticosti has led to the recognition of a new zone, the Ancyrochitina ellisbayensis biozone, in the uppermost part of the Ellis Bay Formation, which harmonizes with that based on conodonts and with the known graptolite faunal succession.

Journal ArticleDOI
TL;DR: The comparison between pollen spectra and vegetation shows site-to-site variations in pollen assemblages in relation to the floristic heterogeneity of forests, and it appears that few taxa show a good correlation between plant cover and pollen abundance.

Journal ArticleDOI
TL;DR: The presence of Weinmannioxylon in Late Cretaceous sediments suggests that taxa within or stem taxa to the Cunoniaceae might have been a notable component of the forest vegetation that covered the Antarctic Peninsula during the Late Mesozoic and may represent the earliest record of this family.

Journal ArticleDOI
TL;DR: In this paper, the authors used scanning electron microscopy (SEM) to identify Pinus cembra pollen grains from other Alpine Pinus species with higher reliability, and served to reconstruct the Holocene vegetation history near the site with more accuracy.

Journal ArticleDOI
TL;DR: Quantitative analysis revealed that polychaete assemblages with a very consistent qualitative and quantitative composition were widespread over long distances within the belts of similar facies conditions in the Baltoscandian Palaeobasin, and it appears that species of Ordovician jawed polychaetes were strongly influenced by particular facies, and accordingly well differentiated along the palaeOBasin gradient.

Journal ArticleDOI
TL;DR: A taphonomic analysis in this layer appears to characterise a biocoenosis formed from N. penalveri sp.

Journal ArticleDOI
TL;DR: Wattieza joins Lorophyton Fairon-Demaret et Li, Calamophyton Kräusel et Weyland and Pseudosporochnus as morphologically well-circumscribed Devonian members of the phylogenetically important plant group Cladoxylopsida.

Journal ArticleDOI
TL;DR: A pollen record from Timbio, located at an elevation of 1750m on the high plain of Popayán, forms the basis for reconstructing the vegetation and climate history for the periods from 27000 to 9200 radiocarbon years before the present (14Cyr BP) and 2100 to sub-recent.

Journal ArticleDOI
TL;DR: The results suggest that orbicule characters in the Ixoroideae may be systematically useful on tribal level.

Journal ArticleDOI
TL;DR: The macromorphology and epidermal anatomy of three Late Carboniferous-Early Permian pteridosperm species, conventionally assigned to the form-genus Pseudomariopteris Danzé-Corsin, are described from the Stephanian of the Blanzy-Montceau Basin and Seeds attached to a P. busquetii specimen suggest a callistophytalean relationship for Pseudomeropteris.

Journal ArticleDOI
TL;DR: This study is a critical review of pollen analyses carried out on Holocene sequences from 15 sites in and near the Romanian Plain, suggesting that early Holocene steppe vegetation was gradually replaced by forest or forest-steppe vegetation in the late Holocene.

Journal ArticleDOI
S. Torricelli1
TL;DR: A pelagic sedimentary succession, virtually complete from the Upper Hauterivian to the Upper Aptian and unconformably overlain by the Middle-Upper Albian p.p., was continuously cored in the Belluno Basin as part of the APTICORE Program.

Journal ArticleDOI
TL;DR: In this paper, the lateral distribution of calcareous dinoflagellates was studied in surface sediments of the equatorial and south Atlantic between 13°N and 36°S.