Comment on "Lethally Hot Temperatures During the Early Triassic Greenhouse"

Goudemand, Nicolas; Romano, Carlo; Brayard, Arnaud; Hochuli, Peter A.; Bucher, Hugo

doi:10.1126/science.1232924

Cited by 24 publications

(12 citation statements)

References 8 publications

(7 reference statements)

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“…(1) The possible early Triassic hyperthermal (Sun et al, 2012; consider the critical remarks by Goudemand et al, 2013; see also Benton and Newell, 2014) and the relevant thermal expansion of seawater.…”

Section: Discussionmentioning

confidence: 99%

Mesozoic long-term eustatic cycles and their uncertain hierarchy

Ruban

2015

Geoscience Frontiers

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a b s t r a c tGlobal sea-level has changed in a cyclic manner through geologic history, but the regularities of these changes are yet to be fully understood. Despite certain (and sometimes significant) differences, the available Mesozoic eustatic curves permit the outlining of long-term eustatic cycles, which are provisionally defined as cycles recognizable at the stage level and higher. Interpretation of the Triassic eustatic curves indicates two orders of long-term cycles and a 1st-order sea-level rise throughout the entire period. The Jurassic eustatic curves imply cyclicity of one or two orders, and a 1st-order eustatic rise during the entire period is also evident. Most challenges are interpretations for the Cretaceous; two to four orders of long-term eustatic cycles can be established for this period. Generally, the hierarchy of the long-term eustatic cycles might have changed through the Mesozoic. If so, and if one considers differences of cycles of the same order between the periods of this era, it is difficult to apply "standard" hierarchical classifications to the documented cycles. The hypothetical uncertainty of the hierarchy of the Mesozoic long-term eustatic cycles is an important challenge for modern researchers.

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Section: Discussionmentioning

confidence: 99%

Mesozoic long-term eustatic cycles and their uncertain hierarchy

Ruban

2015

Geoscience Frontiers

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“…For unknown reasons, Goudemand et al (1) choose not to replot all of our data, and other data points have had their age assignment inexplicably changed. For example, having revised the Changhsingian conodont zonations and assumed equal durations, for no specified reason, they replotted only 19 of our 47 data points in this interval.…”

mentioning

confidence: 99%

“…Haishui Jiang, 1 Lina Wang, 1 Xulong Lai 1 Goudemand et al replot a subset of our well-constrained data using a new Early Triassic biostratigraphic scheme based on a lower-resolution ammonoid zonation scheme and hypothetical ammonoid-conodont correlation to produce a less distinct seawater temperature history. We dispute their unsubstantiated correlation and, consequently, their allegations.…”

mentioning

confidence: 99%

“…This reevaluation is highly flawed. Goudemand et al (1) plot the lowest and highest data points within a biozone at the base and top of the respective zone and thus create a purely artificial clustering of data. In fact, our data were located precisely within sections and zones, a precision lost by Goudemand et al (1).…”

mentioning

confidence: 99%

“…Goudemand et al (1) plot the lowest and highest data points within a biozone at the base and top of the respective zone and thus create a purely artificial clustering of data. In fact, our data were located precisely within sections and zones, a precision lost by Goudemand et al (1). It should be noted that our biostratigraphic dating is based on many more sample points than the isotope data points because not all samples yielded enough conodont material for oxygen isotope analysis.…”

mentioning

confidence: 99%

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