Team Publications

Publications by the members of the Paleosynthesis Team and Scientific Advisory Board

457 to 462 of 504

27JUN 2020
Team Publications
Acknowledging uncertainty in evolutionary reconstructions
“Reconstructing ecological niche evolution can provide insight into the biogeography and diversification of evolving lineages. However, comparative phylogenetic methods may infer the history of ecological niche evolution inaccurately because (a) species’ niches are often poorly characterized; and (b) phylogenetic comparative methods rely on niche summary statistics rather than full estimates of species’ environmental tolerances. Here, […]“Reconstructing ecological niche evolution can provide insight into the biogeography and diversification of evolving lineages. However, comparative phylogenetic methods may infer the history of ecological niche evolution inaccurately because (a) species’ niches are often poorly characterized; and (b) phylogenetic comparative methods rely on niche summary statistics rather than full estimates of species’ environmental tolerances. Here, […]
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26JUN 2020
Team Publications
Age uncertainty leads to inaccurate topology and divergence
“Time calibrated trees are challenging to estimate for many extinct groups of species due to the incompleteness of the rock and fossil records. Additionally, the precise age of a sample is typically not known as it may have occurred at any time during the time interval spanned by the rock layer. Bayesian phylogenetic approaches provide […]
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21JUN 2020
Team Publications
Tetrapods across the Permo-Triassic
“The decline in species richness from the equator to the poles is referred to as the latitudinal diversity gradient (LDG). Higher equatorial diversity has been recognized for over 200 years, but the consistency of this pattern in deep time remains uncertain. Examination of spatial biodiversity patterns in the past across different global climate regimes and […]
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16JUN 2020
Team Publications
Biomechanical properties of the jaws of Clevosaurus
“Clevosaurus (Late Triassic, Early Jurassic), a diapsid reptile belonging to the rhynchocephalians was used to study the dentary morphospace. Interestingly the morphospace differs from other rhynchocephalians. Finite element analysis indicates that the investigated species had bite forces and tooth pressures sufficient to break apart chitin suggesting a diet including tough‐shelled beetles and possibly small vertebrates.”Rhynchocephalians […]“Clevosaurus (Late Triassic, Early Jurassic), a diapsid reptile belonging to the rhynchocephalians was used to study the dentary morphospace. Interestingly the morphospace differs from other rhynchocephalians. Finite element analysis indicates that the investigated species had bite forces and tooth pressures sufficient to break apart chitin suggesting a diet including tough‐shelled beetles and possibly small vertebrates.”Rhynchocephalians […]
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15JUN 2020
Team Publications
Biostratigraphy and strontium isotope stratigraphy
“The San Diego Formation, Pico Formation, Careaga Sandstone, and Foxen Mudstone of southern California are thought to be late Pliocene to early Pleistocene; however, numerical ages have not been determined. Following assessment of diagenetic alteration via multiple methods including scanning electron microscopy (SEM), X–ray diffraction (XRD), and minor elemental concentrations, we attempted to use strontium […]“The San Diego Formation, Pico Formation, Careaga Sandstone, and Foxen Mudstone of southern California are thought to be late Pliocene to early Pleistocene; however, numerical ages have not been determined. Following assessment of diagenetic alteration via multiple methods including scanning electron microscopy (SEM), X–ray diffraction (XRD), and minor elemental concentrations, we attempted to use strontium […]
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09JUN 2020
Team Publications
Past and future decline of tropical pelagic biodiversity
“A major research question concerning global pelagic biodiversity remains unanswered: when did the apparent tropical biodiversity depression (i.e., bimodality of latitudinal diversity gradient [LDG]) begin? The bimodal LDG may be a consequence of recent ocean warming or of deep-time evolutionary speciation and extinction processes. Using rich fossil datasets of planktonic foraminifers, we show here that […]“A major research question concerning global pelagic biodiversity remains unanswered: when did the apparent tropical biodiversity depression (i.e., bimodality of latitudinal diversity gradient [LDG]) begin? The bimodal LDG may be a consequence of recent ocean warming or of deep-time evolutionary speciation and extinction processes. Using rich fossil datasets of planktonic foraminifers, we show here that […]
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