Journal ArticleDOI
Squamastrobus gen. N., A fertile podocarp from the early cretaceous of Patagonia, Argentina
TLDR
Squamastrobus tigrensis nov. gen. has been found in early Cretaceous strata (Baquero Formation), Santa Cruz Province, Argentina as discussed by the authors.About:
This article is published in Review of Palaeobotany and Palynology.The article was published on 1989-06-21. It has received 45 citations till now. The article focuses on the topics: Microcachrys & Podocarpaceae.read more
Citations
More filters
Journal ArticleDOI
Hemisphere-scale differences in conifer evolutionary dynamics
Andrew B. Leslie,Jeremy M. Beaulieu,Hardeep S. Rai,Peter R. Crane,Michael J. Donoghue,Sarah Mathews +5 more
TL;DR: The abundance of recent divergences in northern clades may reflect complex patterns of migration and range shifts during climatic cycles over the later Neogene leading to elevated rates of speciation and extinction, whereas the scattered persistence of mild, wetter habitats in the Southern Hemisphere may have favored the survival of older lineages.
Journal ArticleDOI
Splendid and Seldom Isolated: The Paleobiogeography of Patagonia
TL;DR: The idea that South America was an island continent over most of the Cenozoic, during which its unusual mammalian faunas evolved in isolation, is outstandingly influential in biogeography as discussed by the authors.
Journal ArticleDOI
An overview of extant conifer evolution from the perspective of the fossil record.
Andrew B. Leslie,Jeremy M. Beaulieu,Garth Holman,Christopher S. Campbell,Wenbin Mei,Linda R. Raubeson,Sarah Mathews +6 more
TL;DR: A new time-calibrated molecular tree that samples ~90% of extant species diversity and phylogenetic relationships and estimated divergence ages in this new phylogeny with the paleobotanical record are presented, focusing on clades that are species-rich and well known from fossils.
Journal ArticleDOI
Statistical Comparison of Trait-Dependent Biogeographical Models Indicates That Podocarpaceae Dispersal Is Influenced by Both Seed Cone Traits and Geographical Distance.
TL;DR: The importance of traits and distance suggests that long-distance dispersal over macroevolutionary timespans should not be thought of as a highly unpredictable chance event, but instead, long- distance dispersal can be modelled, allowing statistical model comparison to quantify support for different hypotheses.
References
More filters
Journal ArticleDOI
Pollen morphology of the New Zealand species of Dacrydium Selander, Podocarpus L'Heritier, and Dacrycarpus Endlicher (Podocarpaceae)
TL;DR: A zone of exine differentiation termed “region of weakness” is identified in Dacrydium colensoi, D.laxifolium, Podocarpus spicatus, and P.ferrugineus, the only modern trisaccate type in New Zealand.
Journal ArticleDOI
Ferugliocladaceae, a new conifer family from the Permian of Gondwana
Sergio Archangelsky,Rubén Cúneo +1 more
TL;DR: A new family, the Ferugliocladaceae is proposed, based on cones described from the early Permian of the La Rioja and Chubut provinces of Argentina, which suggests that their ancestors may have had either a simple bract and ovule organization or that the ovule-bearing organ is strongly reduced, with the ovuliferous scales and ovules fused together so strongly to form an ovULiferous complex as to be indistinguishable.
Journal ArticleDOI
Current status of paleozoic and mesozoic conifers
TL;DR: Florin's hypothesis that modern conifer families except the Taxaceae evolved from the Lebachiaceae through the Voltziaceae is examined using two numerical analyses, which show a divergence among the VoltZIaceae the genera into two distinct groups.
Estudio de la Formación Baqueró. Cretácico Inferior de Santa Cruz, Argentina
TL;DR: The presente trabajo consiste en la puesta al dia de nuestros conocimientos sobre the Formacion Baquero, unidad geologica queaflora en una extensa zona ubicada al sur del Rio Deseado in la Provincia de Santa Cruz as mentioned in this paper.