CRANIAL ONTOGENETIC VARIATION IN EARLY SAURISCHIANS AND THE ROLE OF HETEROCHRONY IN THE DIVERSIFICATION OF PREDATORY DINOSAURS

Cranial ontogenetic variation in early saurischians and the role of heterochrony in the diversification of predatory dinosaurs

Non-avian saurischian skulls underwent at least 165 million years of evolution and shapes varied from elongated skulls, such as in the theropod Coelophysis, to short and box-shaped skulls, such as in the sauropod Camarasaurus.A number of factors have long been considered to drive skull shape, including phylogeny, dietary preferences and functional

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Exploratory analysis of PM2.5 variation trend of Tehran, Iran, in various time series and its relation with cardiovascular mortality rate using R software

Among the numerous air pollutants, the strongest proof for adverse health effects has been reported for particulate matter (PM).The aim of this study was the exploration of short-term associations of air pollution with mortalities due to cardiovascular diseases (CVD) in Tehran, Iran, based on hospital and census data from 2007 to 2013.This descript

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