Sequence of Permian Tetrapod Faunas of Eastern Europe and the Permian–Triassic Ecological Crisis

Сенников, А. Г.; Golubev, V. K.

doi:10.1134/s0031030117060077

Cited by 50 publications

(30 citation statements)

References 3 publications

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“…Second, additional terrestrial ecosystems roughly coeval to the Karoo Basin must be considered. For example, our analyses could be applied to other areas that preserve late Permian and Early-Middle Triassic paleocommunities, such as Russia and northwestern China (Benton et al, 2004;Ivakhnenko et al, 1997;Liu and Abdala, 2017;Lucas, 2001;Metcalfe et al, 2009;Sennikov, 1996;Sennikov and Golubev, 2017). Third, the hypothesis must be tested in the marine realm, where the geological persistence of paleocommunities and ecosystems is well established.…”

Section: Future Directionsmentioning

confidence: 99%

Ecological persistence, incumbency and reorganization in the Karoo Basin during the Permian-Triassic transition

Roopnarine¹,

Angielczyk²,

AllenWeik³

et al. 2018

Preprint

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The geological persistence of biotic assemblages and their reorganization or destruction by mass extinctions are key features of long-term macroevolutionary and macroecological patterns in the fossil record. These events affected biotic history disproportionately and left permanent imprints on global biodiversity. Here we hypothesize that the geological persistence and incumbency of paleocommunities and taxa aremaintained by patterns of biotic interactions that favour the ecological persistence and stable coexistence of interacting species. Equally complex communities produced by alternative macroevolutionary histories, and hence of different functional structure, may support less stable species coexistence, and are therefore less persistent. However, alternative communities with the same functional structure as a persistent paleocommunity, but variable clade richnesses, tend to be as or more stable than observed palecommunities, thus demonstrating that geological persistence is not the result of constrained patterns, or ecological locking. Numerically modeled food webs for seven tetrapod-dominated paleocommunities spanning thetraditionally-recognized Permian-Triassic boundary in the Karoo Basin of South Africa, show that incumbency before the Permian-Triassic mass extinction was maintained by a dynamically stable, community-level system of biotic interactions, thereby supporting the hypothesis. The system’s structure was lostthrough successive extinction pulses, and replaced initially by a rich but geologically ephemeral Early Triassic fauna, which itself was replaced by a novel Middle Triassic community with renewed incumbency.The loss of persistence and incumbency, therefore, did not result simply from the extinction of species; instead the largest declines were accompanied by the addition of new species to the system in the earliest aftermath of the event. We therefore further hypothesize that ecological reorganization and evolutionary innovation in the wake of mass extinctions play key roles in the destruction of highly stable, preexisting systems of biotic interaction. In the case of the Karoo Basin paleocommunities, we estimate that a return tostable interactions, and thus incumbency, was achieved in approximately 4-17 Ma.

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Section: Future Directionsmentioning

confidence: 99%

Ecological persistence, incumbency and reorganization in the Karoo Basin during the Permian-Triassic transition

Roopnarine¹,

Angielczyk²,

AllenWeik³

et al. 2018

Preprint

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“…Thus, the hiatus between the Inta and Mezen/Isheevo Russian faunal assemblages 54 corresponded to the early Kazanian transgression. “Efremov’s gap” 54 covers the interval from the “Garlstorf” transgression to the occurrence of the Sundyr Fauna and is probably where the last dinocephalians existed before their permanent extinction 55 . The onset of the South African Pristerognathus zone coincides with the dinocephalian extinction in South Africa, which corresponds to the Russian Deltavjatia vjatkensis zone that characterises the Kotelnich Subassemblage 56 .…”

Section: Methodsmentioning

confidence: 99%

“…The ages of fauna from the Russian Platform were reconsidered based on the most recent biostratigraphic charts 54,55 . In the absence of radioisotopic dates, the index faunal zones were initially aligned stage by stage onto the reference timescale and the time between the end of the Severodvinian and the end of the Capitanian was taken into consideration.…”

Section: Synthesis Of Clado-stratigraphic Patternsmentioning

confidence: 99%

An early Pangaean vicariance model for synapsid evolution

Brikiatis¹

2020

Sci Rep

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Genetic isolation due to geographic separation (vicariance) is the best understood cause of vertebrate speciation. nevertheless, it has never been demonstrated in the fossil record across a wide range of taxa. Here, by reviewing in-depth the available data of the Late Palaeozoic (~ 350-250 million years ago), i reconstructed an early pangaean junction-disjunction palaeogeographic model and showed that it coincides strongly with time-calibrated cladograms of the Late palaeozoic synapsids (the primitive ancestors of modern mammals). the temporal development of the vicariant topology seems to fit closely with the emergence rhythm of the recovered synapsid taxa, suggesting vicariance due to pangaean separation as the cause of early amniote evolution. the inferred vicariant topology also accounts for the observed pattern in the north American marine biostratigraphic units. Accordingly, the model demonstrates the link between the evolution of life on earth and palaeogeographic evolution and strongly supports allopatric speciation through vicariance as the prominent mode of amniote evolution. furthermore, correlations between state-of-the-art biochronostratigraphic charts and this palaeogeographic model suggest that the arido-eustasy model can explain the mid-permian biotic extinction event and depositional cycles, such as the pre-Zechstein of the central european Basin. Vicariance is the geographical separation of previously sympatric populations due to the development of geographical and/or ecological barriers to gene flow 1. Through vicariance, conspecific populations become genetically isolated and subsequently accumulate different mutations that render them reproductively incompatible resulting in the creation of new species 2. One common way for temporally heterogeneous geographic barriers to form is via eustatic sea-level changes that produce seaways on low profile intercontinental land bridges 3. Accordingly, transgressive stages, which occur when sea-levels are high, are expected to coincide with vicariance of the terrestrial biota, whereas regressive stages, which occur when sea-levels are low, are expected to coincide with geodispersals, and the opposite pattern is expected for marine biota 4. To verify a vicariance pattern, a junction-disjunction palaeogeographic model must correlate with phylogenetic topologies of multiple taxa 5. Although vicariance is the best understood mode of speciation 1,2 , due to the absence of detailed scenarios of palaeogeographic changes and sufficiently resolved and representative phylogenetic trees, allopatric speciation has not been confirmed for a wide range of taxa in the vertebrate fossil record. Based on the most apparent episodes of sea-level change that affected the southern connections between the Uralian Seaway (URS) and the Palaeotethys, an early Pangaean junction-disjunction palaeogeographic model was reconstructed and compared to time-calibrated consensus cladograms ("clado-stratigraphic patterns") of Late Palaeozoic vertebrates to determine whether a vicariance pat...

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“…To better understand the processes in continental environments associated with the end-Permian mass extinction, which is known from the marine realm as the severest of the “Big Five” mass extinctions in Earth’s history (e.g., Benton, 1995, 2003), the late Permian–Early Triassic transition in continental sections is currently studied in several regions. These include key sections in the Karoo Basin of South Africa (e.g., Smith and Botha-Brink, 2014; Gastaldo et al, 2015, 2017; Neveling et al, 2016), the Junggar Basin in Northwest China (e.g., Cao et al, 2008; Thomas et al, 2011; Wan et al, 2017), the Yangtze Platform in South China (e.g., Peng and Shi, 2009; Shen et al, 2011; Chu et al, 2016; Zhang et al, 2016), the Central European Basin in the Netherlands, Poland, and Germany (e.g., Szurlies et al, 2012; Becker and Nawrocki, 2014; Scholze et al, 2016, 2017a), several basins in Siberia (e.g., Reichow et al, 2009; Sadovnikov, 2015; Stordal et al, 2017), and the East European Platform in the European part of Russia (e.g., Taylor et al, 2009; Newell et al, 2012; Sennikov and Golubev, 2012, 2017; Aref’ev et al, 2015). Among these, the key sections of the late Permian–Early Triassic continental deposits of the Moscow Syneclise near the towns of Vyazniki and Gorokhovets (Vladimir Region, European Russia) (Fig.…”

Section: Introductionmentioning

confidence: 99%

Late Permian conchostracans (Crustacea, Branchiopoda) from continental deposits in the Moscow Syneclise, Russia

et al. 2018

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The Moscow Syneclise on the East European Platform is an important area for the study of the continental biota of late Permian to Early Triassic age in continuous sections. This study attempts a taxonomic description of the late Permian conchostracan fauna of this area. The rich, new material was collected, bed by bed, during geological and paleontological excavations of lacustrine and fluvial deposits of the Obnora Formation and Vokhma Formation of the late Permian Zhukovian Regional Stage near the towns of Vyazniki and Gorokhovets. The conchostracan fauna of the Zhukovian Regional Stage consists predominantly ofPseudestheriaand less frequently ofPalaeolimnadiopsis. In the earliest Triassic Vokhmian Regional Stage, a more diverse fauna includingEuestheria,Magniestheria,Cornia,Palaeolimnadiopsis, andRossolimnadiopsiswas already recorded. The preliminary taxonomic determination of the pseudestheriids from the Zhukovian Regional Stage is intended to serve as a prerequisite for future studies of late Permian conchostracan biostratigraphy on the regional to interregional scale.

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Sequence of Permian Tetrapod Faunas of Eastern Europe and the Permian–Triassic Ecological Crisis

Cited by 50 publications

References 3 publications

Ecological persistence, incumbency and reorganization in the Karoo Basin during the Permian-Triassic transition

Ecological persistence, incumbency and reorganization in the Karoo Basin during the Permian-Triassic transition

An early Pangaean vicariance model for synapsid evolution

Late Permian conchostracans (Crustacea, Branchiopoda) from continental deposits in the Moscow Syneclise, Russia

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