Endobenthic Response through Mass-Extinction Episodes: Predictive Models and Observed Patterns

Morrow, Jared R.; Hasiotis, Stephen T.

doi:10.1016/b978-044452949-7/50162-5

Cited by 11 publications

(9 citation statements)

References 50 publications

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“…Most major mass extinctions during the Phanerozoic resulted in a decrease in burrow diameter (Bottjer and Droser, 1994;Twitchett and Barras, 2004;Morrow and Hasiotis, 2007;Twitchett, 2007). As a proxy for tracemaker body size, burrow diameter provides information on fundamental characteristics such as organism biology and behavior (Twitchett and Barras, 2004;Morrow and Hasiotis, 2007;Twitchett, 2007).…”

Section: Introductionmentioning

confidence: 97%

“…In continental environments, the PETM is marked by a decrease in burrow diameter of soil fauna (Smith et al, 2009). Similarly, in marine settings, such as the Pilot Basin sequences of western Utah, the late Devonian extinction was marked by a reduction in burrow size, as well as ichnodiversity and tier depth during the extinction, survival, and early recovery stages (Morrow and Hasiotis, 2007). A reduction in burrow size was also documented beginning at the Permian-Triassic boundary and extending into the mid-Early Triassic (Twitchett and Wignall, 1996;Twitchett, 1999;Fraiser and Bottjer, 2000;Twitchett et al, 2001Pruss and Bottjer, 2004;Twitchett and Barras, 2004;Pruss et al, 2005).…”

Section: Introductionmentioning

confidence: 98%

“…As a proxy for tracemaker body size, burrow diameter provides information on fundamental characteristics such as organism biology and behavior (Twitchett and Barras, 2004;Morrow and Hasiotis, 2007;Twitchett, 2007). In continental environments, the PETM is marked by a decrease in burrow diameter of soil fauna (Smith et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Trace fossil evidence suggests widespread dwarfism in response to the end-Cretaceous mass extinction: Braggs, Alabama and Brazos River, Texas

Wiest

Buynevich

Grandstaff

et al. 2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Trace fossil evidence suggests widespread dwarfism in response to the end-Cretaceous mass extinction: Braggs, Alabama and Brazos River, Texas

Wiest

Buynevich

Grandstaff

et al. 2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…Consequently, bioturbation structures preserved in Neoproterozoic and lower Cambrian rocks typically are bedding-parallel and minimally disruptive to primary physical sedimentary structures (Ausich and Bottjer, 1982;Bottjer and Ausich, 1986). Shallow infaunal tiers also dominate during extinction-recovery periods (Twitchett, 1999;Twitchett and Barras, 2004;Barras and Twitchett, 2007;Morrow and Hasiotis, 2007) and in restrictive marine settings (Taylor and Goldring, 1993;Wignall, 1993;Taylor et al, 2003). Thus, study of bedding-plane exposures is essential for understanding how benthic communities first evolved, recovered from major extinction events, and adapted to physiologically stressful environmental conditions.…”

Section: Introductionmentioning

confidence: 97%

The Intersection Grid Technique for Quantifying the Extent of Bioturbation on Bedding Planes

Marenco¹,

Bottjer²

2010

PALAIOS

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The character and quantity of bioturbation preserved on bedding-plane exposures reflect a number of interrelated factors, including sediment accumulation rate, oxygen availability, and benthic community composition. In order to effectively document and compare bioturbation data from bedding planes, precise quantitative methods are needed. Here we present the intersection grid method, a quantitative presence/absencebased technique for accurately and efficiently estimating the percentage bioturbation on bedding-plane surfaces. The intersection grid method, which is based on an established method for estimating vegetative cover, is entirely digital and allows grids to be precisely scaled to match the bioturbation being analyzed. In addition, a record of each grid analysis can be saved as an image file for archiving and use in paleocommunity reconstruction. Testing the intersection grid method on hypothetical bedding-plane images demonstrates that accurate results-within 0.5% of the actual bioturbation percentage-can be obtained efficiently by scaling the grid within a recommended range. Intersection grid method data can be analyzed statistically and combined with descriptive ichnological and sedimentological data to reveal spatial, temporal, and paleoenvironmental patterns in bioturbation and make meaningful comparisons at outcrop, locality, and regional scales.

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“…Ekdale & Bromley ; Savrda ; Rodríguez‐Tovar ) events. The Late Devonian mass extinction has escaped to ichnological scrutiny for the most part (see Wang ; and Morrow & Hasiotis , for exceptions). The Upper Devonian–Lower Mississippian Bakken Formation of sub‐surface Saskatchewan and the partially coeval Exshaw Formation of Alberta contain intensely bioturbated shallow‐marine deposits that provide a unique opportunity to examine the impact of the mass extinction and the nature of the post‐extinction aftermath and recovery phases from the perspective of animal–substrate interactions.…”

mentioning

confidence: 99%

Onshore expansion of benthic communities after the Late Devonian mass extinction

Buatois

Angulo

Mángano

2013

LET

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A detailed ichnological analysis of the Upper Devonian–Lower Mississippian Bakken Formation of sub‐surface Saskatchewan and the partially coeval Exshaw Formation of Alberta indicates the presence of an anomalous ichnofacies gradient. The distal Cruziana Ichnofacies, which in rocks of other ages is restricted to lower‐offshore facies, here ranges from this setting to the lower shoreface. No archetypal Cruziana Ichnofacies is present in these deposits. This pattern is interpreted as resulting from the differential effects of the Late Devonian mass extinction in shallow‐water ecosystems. The onshore expansion evidenced by ichnological data is consistent with the pattern displayed by the body‐fossil record, which indicates a re‐invasion of shallow‐water environments by the Palaeozoic evolutionary fauna during the Late Devonian and into the Early Carboniferous. The ichnofauna studied is overwhelmingly dominated by deposit feeders, with suspension feeders being notably absent, further underscoring the importance of trophic type as a selectivity trait during mass extinctions.

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Endobenthic Response through Mass-Extinction Episodes: Predictive Models and Observed Patterns

Cited by 11 publications

References 50 publications

Trace fossil evidence suggests widespread dwarfism in response to the end-Cretaceous mass extinction: Braggs, Alabama and Brazos River, Texas

Trace fossil evidence suggests widespread dwarfism in response to the end-Cretaceous mass extinction: Braggs, Alabama and Brazos River, Texas

The Intersection Grid Technique for Quantifying the Extent of Bioturbation on Bedding Planes

Onshore expansion of benthic communities after the Late Devonian mass extinction

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