Bryozoan Diversity Dynamics at the Devonian–Carboniferous Transition: Evidence from Transcaucasia
The Devonian–Carboniferous transition was marked by a series of perturbations in the geological and biological evolution. The palaeontological data from Transcaucasia allowed the bryozoan diversity dynamics on the northern Gondwanan margin (southern periphery of the Palaeo-Tethys Ocean) to be docume...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/10/7/959 |
| _version_ | 1797405994168352768 |
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| author | Zoya A. Tolokonnikova Dmitry A. Ruban |
| author_facet | Zoya A. Tolokonnikova Dmitry A. Ruban |
| author_sort | Zoya A. Tolokonnikova |
| collection | DOAJ |
| description | The Devonian–Carboniferous transition was marked by a series of perturbations in the geological and biological evolution. The palaeontological data from Transcaucasia allowed the bryozoan diversity dynamics on the northern Gondwanan margin (southern periphery of the Palaeo-Tethys Ocean) to be documented at this transition. Taxonomic ranges of 43 species, 26 genera, 19 families, and 4 orders were analysed to reveal changes in the total diversity, the number of appearances, the number of disappearances, and the turnover rates per substages. It is established that the bryozoan diversity was rather high in the beginning and the end of the Famennian, as well as in the Late Tournaisian. It declined significantly in the Middle–Late Famennian and the Early Tournaisian due to the combination of the high number of disappearances and the low number of appearances. The turnovers remained strong, and they peaked in the mid-Famennian. These regionally documented diversity changes match the patterns recorded globally and in Southern Siberia. Hypothetically, the Middle–Late Famennian and Early Tournaisian crises established in Transcaucasia were related to the global events (anoxia and mass extinctions), a series of which weakened the bryozoans’ resistivity to negative external influences. |
| first_indexed | 2024-03-09T03:18:20Z |
| format | Article |
| id | doaj.art-d5b8c61be44346c9bc70002062624f5f |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-09T03:18:20Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-d5b8c61be44346c9bc70002062624f5f2023-12-03T15:15:06ZengMDPI AGJournal of Marine Science and Engineering2077-13122022-07-0110795910.3390/jmse10070959Bryozoan Diversity Dynamics at the Devonian–Carboniferous Transition: Evidence from TranscaucasiaZoya A. Tolokonnikova0Dmitry A. Ruban1Kuban State University, Stavropolskaja Street 149, 350040 Krasnodar, RussiaK.G. Razumovsky Moscow State University of Technologies and Management (the First Cossack University), Zemlyanoy Val Street 73, 109004 Moscow, RussiaThe Devonian–Carboniferous transition was marked by a series of perturbations in the geological and biological evolution. The palaeontological data from Transcaucasia allowed the bryozoan diversity dynamics on the northern Gondwanan margin (southern periphery of the Palaeo-Tethys Ocean) to be documented at this transition. Taxonomic ranges of 43 species, 26 genera, 19 families, and 4 orders were analysed to reveal changes in the total diversity, the number of appearances, the number of disappearances, and the turnover rates per substages. It is established that the bryozoan diversity was rather high in the beginning and the end of the Famennian, as well as in the Late Tournaisian. It declined significantly in the Middle–Late Famennian and the Early Tournaisian due to the combination of the high number of disappearances and the low number of appearances. The turnovers remained strong, and they peaked in the mid-Famennian. These regionally documented diversity changes match the patterns recorded globally and in Southern Siberia. Hypothetically, the Middle–Late Famennian and Early Tournaisian crises established in Transcaucasia were related to the global events (anoxia and mass extinctions), a series of which weakened the bryozoans’ resistivity to negative external influences.https://www.mdpi.com/2077-1312/10/7/959biotic crisisGondwanamarine macroinvertebratesmiddle PalaeozoicPalaeo-Tethys Oceantaxonomic diversity |
| spellingShingle | Zoya A. Tolokonnikova Dmitry A. Ruban Bryozoan Diversity Dynamics at the Devonian–Carboniferous Transition: Evidence from Transcaucasia Journal of Marine Science and Engineering biotic crisis Gondwana marine macroinvertebrates middle Palaeozoic Palaeo-Tethys Ocean taxonomic diversity |
| title | Bryozoan Diversity Dynamics at the Devonian–Carboniferous Transition: Evidence from Transcaucasia |
| title_full | Bryozoan Diversity Dynamics at the Devonian–Carboniferous Transition: Evidence from Transcaucasia |
| title_fullStr | Bryozoan Diversity Dynamics at the Devonian–Carboniferous Transition: Evidence from Transcaucasia |
| title_full_unstemmed | Bryozoan Diversity Dynamics at the Devonian–Carboniferous Transition: Evidence from Transcaucasia |
| title_short | Bryozoan Diversity Dynamics at the Devonian–Carboniferous Transition: Evidence from Transcaucasia |
| title_sort | bryozoan diversity dynamics at the devonian carboniferous transition evidence from transcaucasia |
| topic | biotic crisis Gondwana marine macroinvertebrates middle Palaeozoic Palaeo-Tethys Ocean taxonomic diversity |
| url | https://www.mdpi.com/2077-1312/10/7/959 |
| work_keys_str_mv | AT zoyaatolokonnikova bryozoandiversitydynamicsatthedevoniancarboniferoustransitionevidencefromtranscaucasia AT dmitryaruban bryozoandiversitydynamicsatthedevoniancarboniferoustransitionevidencefromtranscaucasia |