Palaeoecology Of A Late Devonian Back Reef: Canning Basin, Western Australia

Wood, Rachel

doi:10.1111/1475-4983.00145

Cited by 67 publications

(80 citation statements)

References 25 publications

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“…In the back-reef strata, beds alter-333 nate between stromatoporoid framestones, peloi-334 dal grainstones, and fenestral wackestones in 2^4-335 m shallowing upward intervals. These strata are 336 similar to those described at Windjana Gorge by 337 Wood (2000) and in the Pillara Range by Read 338 (1973). The middle of the Dingo Gap back-reef 339 section is interrupted by reef margin facies, which 340 consists of massively bedded stromatoporoid fra-341 mestones.…”

supporting

confidence: 76%

Late Devonian carbon isotope stratigraphy and sea level fluctuations, Canning Basin, Western Australia

Stephens

Sumner

2003

Palaeogeography, Palaeoclimatology, Palaeoecology

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supporting

confidence: 76%

Late Devonian carbon isotope stratigraphy and sea level fluctuations, Canning Basin, Western Australia

Stephens

Sumner

2003

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…This view is sure to be controversial, in part because not all reefs are found on carbonate platforms, and there may be great practical difficulty in distinguishing between the emergence of carbonate platforms and reef ecosystems. The FrasnianFammenian mass extinction and recovery does provide an example of this phenomenon, with diverse reefs reappearing quickly in Canning Basin, Australia but a reef gap is present in North America and Europe (40). This study, and a recent analysis of corals across the K͞T event (72), have raised questions about the existence of the widely discussed postmass extinction ''reef gaps.''…”

Section: Postextinction Recoveries: General Resultsmentioning

confidence: 86%

“…A lengthy reef gap evident in North America and western Europe (33) is missing in Asia and Australia, where Famennian reefs were initially dominated by microbes rather than coral or sponges (38). In the Canning Basin of Australia, Wood has described a diverse early Famennian reef composed of surviving calcimicrobes, bryozoans, brachiopods, and an array of sponges (40), casting further doubt on the existence of a reef gap in the aftermath of this extinction. An exquisitely preserved echinoderm fauna from the Fammennian Hongegulung Formation of northwestern China demonstrates the rapid, extensive innovation among blastoids and crinoids (39).…”

Section: Postextinction Recoveries: Case Studiesmentioning

confidence: 99%

Lessons from the past: Biotic recoveries from mass extinctions

Erwin

2001

Proc. Natl. Acad. Sci. U.S.A.

288

167

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Although mass extinctions probably account for the disappearance of less than 5% of all extinct species, the evolutionary opportunities they have created have had a disproportionate effect on the history of life. Theoretical considerations and simulations have suggested that the empty niches created by a mass extinction should refill rapidly after extinction ameliorates. Under logistic models, this biotic rebound should be exponential, slowing as the environmental carrying capacity is approached. Empirical studies reveal a more complex dynamic, including positive feedback and an exponential growth phase during recoveries. Far from a model of refilling ecospace, mass extinctions appear to cause a collapse of ecospace, which must be rebuilt during recovery. Other generalities include the absence of a clear correlation between the magnitude of extinction and the pace of recovery or the resulting ecological and evolutionary disruption the presence of a survival interval, with few originations, immediately after an extinction and preceding the recovery phase, and the presence of many lineages that persist through an extinction event only to disappear during the subsequent recovery. Several recoveries include numerous missing lineages, groups that are found before the extinction, then latter in the recovery, but are missing during the initial survival-recovery phase. The limited biogeographic studies of recoveries suggest considerable variability between regions.H owever much one may mourn the passing of trilobites, conodonts, ammonoids, richtofenid brachiopods, and even dinosaurs, there is no denying the profound evolutionary impetus mass extinctions have provided to the history of life. Mass extinctions create new evolutionary opportunities and redirect the course of evolution. During the past two decades, paleontologists have focused great effort on the patterns, rates, and causes of various mass extinctions. Our understanding of these events has improved greatly, but postextinction rebounds have received far less attention. This lack of attention is unfortunate, for the available detailed empirical studies of recoveries have revealed great complexity to postextinction rebounds, raising questions about the applicability of many models of evolutionary dynamics. Analysis of these extensive biotic disturbances provides detailed information about how ecosystems respond to perturbations and the processes underlying diversification, and insights into what we might plausibly expect from our current biodiversity crisis. In this paper, I will place recovery studies within the context of models of biodiversity dynamics, review the results of both modeling work and empirical studies of specific postextinction recoveries, consider the general patterns that can be derived from a comparative study of recoveries, and close with a discussion of the evolutionary significance of biotic recoveries. Recoveries and Biodiversity DynamicsPaleontological discussions of postextinction recoveries have been heavily influenced by models of ev...

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“…2). Only one other distinctive composite is known, an inferred foliaceous shape (WooD, 2000). This has a restricted Upper Devonian occurrence in Paleozoic sequences (see below).…”

Section: Recognizing Stromatoporoid Shapes General Relationshipsmentioning

confidence: 99%