Placunopsis Bioherms: The First Metazoan Buildups Following the End-Permian Mass Extinction

Pruss, Sara B.; Payne, Jonathan L.; Bottjer, David J.

doi:10.2110/palo.2005.p05-050r

Cited by 45 publications

(18 citation statements)

References 21 publications

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“…Although the Virgin Formation (or Virgin Limestone Member in most other studies) and related strata of the western USA have been studied in various aspects (e.g., Poborski 1954;Schubert and Bottjer 1995;Boyer et al 2004;Pruss and Bottjer 2004;Pruss et al 2007;McGowan et al 2009;Pruss and Payne 2009;Mata and Bottjer 2011), very little palaeo− ecological community data were presented. The hitherto most comprehensive study of the Virgin palaeoecology is that of Schubert and Bottjer (1995), which, however, focused on broad patterns throughout the entire Early Triassic of the west− ern USA and was based on genus identification only.…”

Section: Introductionmentioning

confidence: 99%

Early Triassic Microbial Spheroids in the Virgin Limestone Member of the Moenkopi Formation, Nevada, Usa

Pruss

Payne

2009

PALAIOS

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Section: Introductionmentioning

confidence: 99%

Early Triassic Microbial Spheroids in the Virgin Limestone Member of the Moenkopi Formation, Nevada, Usa

Pruss

Payne

2009

PALAIOS

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“…The two latter species are also not asociated with M. valvatus in the same deposits, indicating that they were intolerant of normal marine environments. There is a growing evidence (Fraiser 2011;He et al 2012), that microconchids were the only encrusters inhabiting the harsh, post-extinction hard and firm substrate environments during the earliest Triassic and, along with the bivalve Placunopsis (see Pruss et al 2007), were dominant hard substrate organisms later on in the Spathian (Zatoń et al 2013). Even in the Middle Triassic, when environments and biotas had fully recovered to pre-extintion conditions, microconchids, along with Placunopsis bivalves, were still important encrusters, as demonstrated here.…”

Section: Discussionmentioning

confidence: 99%

Microconchids of the species Microconchus valvatus (Münster in Goldfuss, 1831) from the Upper Muschelkalk (Middle Triassic) of Germany

Zatoń

Hagdorn²,

Borszcz

2013

Palaeobio Palaeoenv

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In the present paper, the commonly mentioned but poorly recognised microconchid species Microconchus valvatus (Münster in Goldfuss, 1831) is redescribed on the basis of material from the Upper Muschelkalk of Germany. ESEM studies of the microconchid tubes with clear morphological and microstructural characters were compared to the existing known Triassic species. Microconchus valvatus is characterised by fine growth lines and transverse riblets. ESEM analysis shows that tubes which appear smooth under the binocular microscope are in fact abraded. Thus, taphonomy must be taken into account and scanning microscopy must be used during studies of microconchid tubes. Quantitative ecology shows that particular microconchid populations developed various size ranges punctuated by some gaps, have non-normal distributions as expected in time-averaged assemblages, and suggests that differences among populations may reflect distinct hydrologic settings. This study provides a multidimensional investigation of microconchids and offers compelling evidence that microconchids were an important faunal group during the post-recovery Middle Triassic interval.

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“…The ecological crisis of reefs is well documented (Weidlich et al 2003) and until recently no metazoan reefs were reported from the entire Early Triassic (Pruss et al 2007). In terms of the decline in reef abundance the Early Triassic drop is just too well matched by a similar drop in sampling to suspect biologically meaningful patterns from the abundance data alone.…”

Section: Discussion Of a Sampling-standardized Reef Curvementioning

confidence: 99%

Sampling-standardized expansion and collapse of reef building in the Phanerozoic

Kiessling

2008

Foss. Rec.

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Tracing the variability of reef production over long temporal scales is important to approach natural processes favoring or suppressing reef growth. Raw compilations of reef abundance per unit of time do not necessarily depict biologically meaningful patterns, because the waxing and waning of reefs might just follow the quality of the fossil record, that is, the amount of paleontological information that is available in general. Here I standardize the published record of Phanerozoic reefs, as stored in the PaleoReefs database, to the published record of marine invertebrate fossils as stored in the Paleobiology Database. The sampling-standardized peaks in reef growth are essentially identical to those of previous studies, but significant peaks are rare. Times when unusual changes in ecological conditions are likely to control changes in metazoan reef proliferation were identified in the Late Devonian, Late Triassic, Late Jurassic and Neogene. <br><br> doi:<a href="http://dx.doi.org/10.1002/mmng.200700008" target="_blank">10.1002/mmng.200700008</a>

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Placunopsis Bioherms: The First Metazoan Buildups Following the End-Permian Mass Extinction

Cited by 45 publications

References 21 publications

Early Triassic Microbial Spheroids in the Virgin Limestone Member of the Moenkopi Formation, Nevada, Usa

Early Triassic Microbial Spheroids in the Virgin Limestone Member of the Moenkopi Formation, Nevada, Usa

Microconchids of the species Microconchus valvatus (Münster in Goldfuss, 1831) from the Upper Muschelkalk (Middle Triassic) of Germany

Sampling-standardized expansion and collapse of reef building in the Phanerozoic

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