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Recovery of brachiopod and ammonoid faunas following the End-Permian crisis: Additional

Recommendation: Biotic recovery after the End-Permian mass extinction is a hot topic in international geological society.
Significant progresses were achieved in the past decades though study on postextinction bitotic records on Early Triassic
successions. However, the knowledge of important invertebrate groups hardly ever accumulated by now. This article focus on the
taxonomic diversity patterns of Early Triassic articulated brachiopods and ammonoids from Induan and Olenekian sections of South
Primorye in former USSR. An amazing discovery in this study is that Ammonoids exceeded the pre-crisis taxonomic diversity and abundance
by the late Induan, whereas brachiopods failed during Triassic or later. The differential recovery patterns of brachiopods and ammonoids
probably, in part, resulted from physiological and behavioural varieties as shown in their contrasting life modes and distribution in
ecospace, and in other part from brachiopods’ vulnerability associated with their larval stage not like ammonoids that juveniles may have
been dispersed widely into favorable habitats.

Source: Vol. 25, No. 1, p. 1–44, February 2014

Authors: Yuri D Zakharov*, Alexander M Popov

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U469.72
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