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. Galfetti J. Guex 2009 Good genes and good luck: ammonoid diversity and the end-Permian mass extinction Science 325

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The diversity of the brachiopods in the Northern Caucasus significantly fluctuated throughout the Paleozoic-Mesozoic. Weak diversifications occurred in the Middle Cambrian, Late Silurian - Early Devonian, and Late Devonian - Early Carboniferous. Since the Late Permian brachiopod assemblages became quite diverse. The maximum number of species was reached in the Rhaetian. The Permian/ Triassic mass extinction and enigmatic Ladinian crisis, on the other hand, led to regional brachiopod demises. In the Jurassic - Early Cretaceous interval the diversity of brachiopods generally decreased. The strongest drops of species numbers occurred in the Toarcian and Berriasian following the Pliensbachian-Toarcian and end-Jurassic global mass extinctions, and in the Kimmeridgian due to the regional salinity crisis. It is evident that some of the regional brachiopod diversifications coincided with the development of rimmed shelves.

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Central European Geology
Authors: Ádám Bede, Roderick B. Salisbury, András István Csathó, Péter Czukor, Dávid Gergely Páll, Gábor Szilágyi, and Pál Sümegi

, M.B. , J. Traba Diaz (Eds): Steppe Ecosystems. Biological Diversity, Management and Restoration . Nova Science Publishers , New York , pp. 165 – 193 . Szilágyi , G. , P

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diversity gradients. — Palaeogeography, Palaeoclimatology, Palaeoecology, 239 , pp. 374 – 395 . Brayard , A. , G. Escarguel , H. Bucher , C. Monnet , T. Brühwiler , N. Goudemand , T. Galfetti

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.A. Ruban 2004 Diversity dynamics of Early-Middle Jurassic brachiopods of Caucasus, and the Pliensbachian-Toarcian mass extinction Acta Palaeontologica Polonica 49

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) were performed for deeper understanding of the microstructural diversity of the eggshell morphotypes. The significance level of the tests was set at α = 0.05. Benjamini–Hochberg p -value correction was applied after multiple pairwise comparisons

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Jura Kavkaza Nauka Sankt-Peterburg [Jurassic of the Caucasus]. D.A. Ruban 2006 Taxonomic diversity dynamics of the

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diversity dynamics of Paleozoic marine animals Paleobiology 32 345 366 . R. Guiraud

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311 325 . D.A. Ruban 2006 Taxonomic diversity dynamics of the Jurassic bivalves in the Caucasus: Regional trends and recognition of global

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. Tišljar I. Velić I. Vlahović 1994 Facies diversity of the Malmian platform carbonates in Western Croatia as a

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