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@article{Tennant:2016:10.1111/brv.12255,
author = {Tennant, JP and Mannion, PD and Upchurch, P and Sutton, M and Price, G},
doi = {10.1111/brv.12255},
journal = {Biological Reviews},
pages = {776--814},
title = {Biotic and environmental dynamics through the Late Jurassic–Early Cretaceous transition: evidence for protracted faunal and ecological turnover},
url = {http://dx.doi.org/10.1111/brv.12255},
volume = {92},
year = {2016}
}
TY - JOUR
AB - The Late Jurassic to Early Cretaceous interval represents a time of environmental upheaval and cataclysmic events, combined with disruptions to terrestrial and marine ecosystems. Historically, the Jurassic/Cretaceous (J/K) boundary was classified as one of eight mass extinctions. However, more recent research has largely overturned this view, revealing a much more complex pattern of biotic and abiotic dynamics than has previously been appreciated. Here, we present a synthesis of our current knowledge of Late Jurassic–Early Cretaceous events, focusing particularly on events closest to the J/K boundary. We find evidence for a combination of short-term catastrophic events, large-scale tectonic processes and environmental perturbations, and major clade interactions that led to a seemingly dramatic faunal and ecological turnover in both the marine and terrestrial realms. This is coupled with a great reduction in global biodiversity which might in part be explained by poor sampling. Very few groups appear to have been entirely resilient to this J/K boundary ‘event’, which hints at a ‘cascade model’ of ecosystem changes driving faunal dynamics. Within terrestrial ecosystems, larger, more-specialised organisms, such as saurischian dinosaurs, appear to have suffered the most. Medium-sized tetanuran theropods declined, and were replaced by larger-bodied groups, and basal eusauropods were replaced by neosauropod faunas. The ascent of paravian theropods is emphasised by escalated competition with contemporary pterosaur groups, culminating in the explosive radiation of birds, although the timing of this is obfuscated by biases in sampling. Smaller, more ecologically diverse terrestrial non-archosaurs, such as lissamphibians and mammaliaforms, were comparatively resilient to extinctions, instead documenting the origination of many extant groups around the J/K boundary. In the marine realm, extinctions were focused on low-latitude, shallow marine shel
AU - Tennant,JP
AU - Mannion,PD
AU - Upchurch,P
AU - Sutton,M
AU - Price,G
DO - 10.1111/brv.12255
EP - 814
PY - 2016///
SN - 1469-185X
SP - 776
TI - Biotic and environmental dynamics through the Late Jurassic–Early Cretaceous transition: evidence for protracted faunal and ecological turnover
T2 - Biological Reviews
UR - http://dx.doi.org/10.1111/brv.12255
UR - http://hdl.handle.net/10044/1/29027
VL - 92
ER -