نتایج جستجو برای: palaeobiogeography

تعداد نتایج: 119  

Journal: :Cretaceous Research 2021

Eleven boreholes and one outcrop of the Lower Cretaceous in South Dobrogea (south-eastern Romania) were sampled for charophytes. Twenty species are described illustrated two non-marine rock units, Z?voaia Member Gherghina Formation. The contains a charophyte assemblage dominated by Feistiella bijuescensis, aff. Mesochara harrisii, Nodosoclavator bradleyi, Clavator bilateralis, grovesii var. gro...

Journal: :Cretaceous Research 2023

Jeddaherdan aleadonta Apesteguía et al., 2016 is currently known as the first and single Mesozoic iguanian lizard from Africa. The original description age of holotype only specimen (i.e. a dentary fragment bearing five teeth) are revised here. We show that this fragmentary was misinterpreted anatomically, does not come Cretaceous beds but instead Quaternary in age, must be assigned to an indet...

Journal: :geopersia 2015
hossein sabbaghiyan ebrahim ghasemi - nejad mohammadreza aria-nasab

rhaetian strata from the nayband formation of the tabas block, east- central iran, were studied palynologically. the materialexamined contained moderately diverse and well-preserved dinoflagellate cyst assemblages which lead to the identification ofrhaetogonyaulax rhaetica zone. the assigned age of this dinozone (rhaetian) is justified by plant fossils such as equisetitesarenaceus, scytophyllum...

2016
Stephen F. Poropat Philip D. Mannion Paul Upchurch Scott A. Hocknull Benjamin P. Kear Martin Kundrát Travis R. Tischler Trish Sloan George H. K. Sinapius Judy A. Elliott David A. Elliott

Australian dinosaurs have played a rare but controversial role in the debate surrounding the effect of Gondwanan break-up on Cretaceous dinosaur distribution. Major spatiotemporal gaps in the Gondwanan Cretaceous fossil record, coupled with taxon incompleteness, have hindered research on this effect, especially in Australia. Here we report on two new sauropod specimens from the early Late Creta...

2006
Alycia L. Stigall Bruce S. Lieberman

Palaeobiogeography is the study of biogeography in the fossil record and pursues as an overall goal tracing the coevolution of the Earth and its biota (Lieberman, 2005). Reconstructing the biogeographical ranges and examining the distribution of fossil organisms has long been an important area of palaeontological research. For example, the recognition that fossils of Mesosaurus, a freshwater re...

Journal: :Proceedings of the Geologists' Association 2022

A new species, namely Astioberotha coutreti sp. nov., of the thorny lacewing subfamily Paraberothinae, is described and illustrated from a complete individual preserved in mid-Cretaceous amber Tanai, northern Myanmar. nov. preserves nearly all diagnostic characters this subfamily, differs type species genus owing to fore femur with one long basal spine 34 additional smaller spines; protibia bea...

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