Results 91 to 100 of about 139,127 (283)
Dizhi lixue xuebaoObjective A typical granulite–migmatite–gneiss dome developed in the Foping area of the central Qinling orogenic belt. This area is key to studying the metamorphic deformation of continental crust and the Mesozoic tectonic evolution of Qinling.
YU Kecheng +7 more
doaj +1 more source
A Late Jurassic deep-bodied actinopterygian fish from Antarctica [PDF]
Acta Palaeontologica PolonicaMesozoic deep-bodied actinopterygians are of interest given, among others, the various modes of feeding exhibited by these fishes. Regrettably, most of their fossil record is restricted to a limited number of localities in Europe.
Soledad Gouiric-Cavalli +3 more
doaj +1 more source
Pararhabdodon Isonensis and Tsintaosaurus Spinorhinus: A New Clade of Lambeosaurine Hadrosaurids from Eurasia [PDF]
, 2009 We present new anatomical information showing that Koutalisaurus kohlerorum, from the Maastrichtian of Lleida Province, northeastern Spain, is most probably the junior synonym of Pararhabdodon isonensis from the same region.
Prieto-Marquez, Aalbert +1 more
core +1 more source
Mechanisms of near‐normal sea water dolomitisation: Mesohaline‐reflux or syn‐depositional?
The Depositional Record, EarlyView.This study investigates the dolomitisation of the Eocene Dammam Formation on the Arabian Plate using petrographic, mineralogical, geochemical and isotopic analyses. The findings reveal two distinct dolomite types, formed primarily through normal‐to‐mesohaline sea water dolomitisation, challenging previous models such as sabkha‐meteoric mixing.
Misbahu Abdullahi +3 more
wiley +1 more source
地质科技通报Objective The Mesozoic strata in the Halahatang-Hade area of the Tabei Uplift belt, Tarim Basin, cover an area of more than 30 000 km2. It has a large monoclinic background, with active hydrocarbon displays and great exploration potential, but no ...
Fang SHI +7 more
doaj +1 more source
Coelacanths from the Middle Triassic of Switzerland and the pace of actinistian evolution [PDF]
Research & Knowledge, 2017 Latimeria chalumnae (Actinistia) was regarded as the ‘ancestor of the four-legged vertebrates’ and rapidly became the iconic example of a ‘living fossil’.
Christophe Ferrante +3 more
doaj +1 more source
Improving the Knowledge on Seismogenic Sources in the Lower Tagus Valley for Seismic Hazard Purposes [PDF]
, 2012 The Lower Tagus Valley, that includes the metropolitan area of Lisbon, has been struck by several earthquakes which produced significant material damage and loss of lives. Their exact location remains unknown.
Borges, J. F. +8 more
core +1 more source
Near-Stasis in the Long-Term Diversification of Mesozoic Tetrapods
PLoS Biology, 2016 How did evolution generate the extraordinary diversity of vertebrates on land? Zero species are known prior to ~380 million years ago, and more than 30,000 are present today.
R. Benson +5 more
semanticscholar +1 more source
Sediment‐stressed reefs over the past 420 Myr
The Depositional Record, EarlyView.In order to fully elucidate the relationship between siliciclastic sedimentation and reef development, there needs to be a significant step change in how we record ancient and recent reefs. Only through the collection of constrained quantitative data, we can progress beyond the largely conjectural associations postulated for many ancient reefal systems.
Tanja Unger +4 more
wiley +1 more source
The evolutionary convergence of mid-Mesozoic lacewings and Cenozoic butterflies
Proceedings of the Royal Society B: Biological Sciences, 2016 Mid-Mesozoic kalligrammatid lacewings (Neuroptera) entered the fossil record 165 million years ago (Ma) and disappeared 45 Ma later. Extant papilionoid butterflies (Lepidoptera) probably originated 80–70 Ma, long after kalligrammatids became extinct ...
C. Labandeira +11 more
semanticscholar +1 more source