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Cindy V. Looy
University of California, Berkeley
GeologyPaleontologyEcologyPermianBiology
74Publications
24H-index
2,403Citations
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Publications 76
Newest
#1Jon Richey (UC Davis: University of California, Davis)H-Index: 1
#2Isabel P. Montañez (UC Davis: University of California, Davis)H-Index: 39
Last. William A. DiMichele (National Museum of Natural History)H-Index: 46
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Abstract. Earth's penultimate icehouse, the Late Paleozoic Ice Age (LPIA), was a time of dynamic glaciation and repeated ecosystem perturbation, under conditions of substantial variability in atmospheric pCO2 and O2. Improved constraints on the evolution of atmospheric pCO2 and O2 : CO2 during the LPIA and its subsequent demise to permanent greenhouse conditions is crucial for better understanding the nature of linkages between atmospheric composition, climate, and ecosystem perturbation during ...
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#1Robert A. Gastaldo (Colby College)H-Index: 31
#2L KamoSandra (U of T: University of Toronto)H-Index: 34
Last. Anna M. Martini (Amherst College)H-Index: 26
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The current model for the end-Permian terrestrial ecosystem crisis holds that systematic loss exhibited by an abrupt turnover from the Daptocephalus to the Lystrosaurus Assemblage Zone (AZ; Karoo Basin, South Africa) is time equivalent with the marine Permian–Triassic boundary (PTB). The marine event began at 251.941 ± 0.037 Ma, with the PTB placed at 251.902 ± 0.024 Ma (2σ). Radio-isotopic dates over this interval in the Karoo Basin were limited to one high resolution ash-fall deposit in the up...
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Premise of research. The earliest occurrences of several characteristic late Permian and early Mesozoic plant groups have been described from Euramerican floras of Pennsylvanian and early Permian age. The basinal deposits in which such early representatives occur are generally associated with short-lived drier conditions or with a gradual shift toward a drier climate. In this article, we provide formal descriptions of voltzian conifer fossils (voltzian Voltziales) from a middle Permian flora bas...
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#1Robert A. Gastaldo (Colby College)H-Index: 31
#2Johann NevelingH-Index: 10
Last. Cindy V. Looy (University of California, Berkeley)H-Index: 24
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1 CitationsSource
#1William A. DiMichele (Smithsonian Institution)H-Index: 46
#2Carol L. Hotton (Smithsonian Institution)H-Index: 13
Last. Robert W. Hook (University of Texas at Austin)H-Index: 6
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Fossil floras have been recovered from a unique deposit of early Permian age in North-Central Texas. The site, Kola Switch, preserves three distinct floras in different lithofacies, in a succession from a single outcrop. The sedimentary environment appears to be a floodplain channel fill of primarily siltstones and claystones. The lowermost flora, preserved in a kaolinitic siltstone, indicates active water flow. It is dominated by plants typical of well-drained substrates, dominated by Sphenopte...
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Last. Cindy V. LooyH-Index: 24
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#1Cindy V. LooyH-Index: 24
#3Jeffrey P. BencaH-Index: 3
Last. Ivo A.P. DuijnsteeH-Index: 3
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#1Victoria E. McCoyH-Index: 8
#3Susan L. TremblayH-Index: 1
Last. Conrad C. LabandeiraH-Index: 44
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#1Jeffrey P. Benca (University of California, Berkeley)H-Index: 3
#2Ivo A.P. Duijnstee (University of California, Berkeley)H-Index: 3
Last. Cindy V. Looy (University of California, Berkeley)H-Index: 24
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Although Siberian Trap volcanism is considered a primary driver of the largest extinction in Earth history, the end-Permian crisis, the relationship between these events remains unclear. However, malformations in fossilized gymnosperm pollen from the extinction interval suggest biological stress coinciding with pulsed forest decline. These grains are hypothesized to have been caused by enhanced ultraviolet-B (UV-B) irradiation from volcanism-induced ozone shield deterioration. We tested this pro...
9 CitationsSource
#1Evelyn KustatscherH-Index: 15
Last. Henk VisscherH-Index: 35
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1 Citations
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