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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Proc+Natl+Acad+Sci+U+S+A 2015 ; 112 (26): 7909-13 Nephropedia Template TP
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Extreme ecosystem instability suppressed tropical dinosaur dominance for 30 million years #MMPMID26080428
Whiteside JH; Lindström S; Irmis RB; Glasspool IJ; Schaller MF; Dunlavey M; Nesbitt SJ; Smith ND; Turner AH
Proc Natl Acad Sci U S A 2015[Jun]; 112 (26): 7909-13 PMID26080428show ga
This is, to our knowledge, the first multiproxy study of climate and associated faunal change for an early Mesozoic terrestrial ecosystem containing an extensive vertebrate fossil record, including early dinosaurs. Our detailed and coupled high-resolution records allow us to sensitively examine the interplay between climate change and ecosystem evolution at low paleolatitudes during this critical interval of Earth's history when modern terrestrial ecosystems first evolved against a backdrop of high CO2 in a hothouse world. We demonstrate that these terrestrial ecosystems evolved within a generally arid but strongly fluctuating paleoclimate that was subject to pervasive wildfires, and that these environmental conditions in the early Mesozoic prevented large active warm-blooded herbivorous dinosaurs from becoming established in subtropical low latitudes until later in the Mesozoic.