After the end-Permian biotic catastrophe and the latest Triassic extinction, the Jurassic Period saw a secondary flourishing episode in the history of the phylum Brachiopoda, with a peak in the late Middle Jurassic (e.g., CURRY & BENTON 2007, Voros 2010, VOROs et al. 2016). This global phenomenon appeared in a somewhat different way in the Mediterranean Province, i.e., in the partly bathyal environments of the microcontinent system within the western Tethys, where the territory of the Transdanubian Range once belonged (VOr6s 1993a). Here the recovery of the brachiopods was surprisingly rapid, as it was demonstrated by DuLat (2001) and BAEzA-CarRATALA etal. (2018) for the early Sinemurian, and the taxonomic diversity remained very high even in the Pliensbachian (Vor6s 2009). The early Toarcian extinction, which was perhaps the most significant in brachiopod history (VOR6s et al. 2016, 2019), put an end to this flourishing period. The post-extinction revival was rapid in the European faunas and Tasted until the Callovian—Oxfordian peak of diversity; on the other hand, the Mediterranean faunas suffered a long-lasting diversity reduction up to the Bajocian (HALLAM 1987, VOr6s 1997). This short Middle Jurassic secondary flourishing of the Mediterranean brachiopods was finished by the commencing of the “age of radiolarites” (CoLAs & Garcia JoraL 2011), which lasted until the Kimmeridgian. The third diversity pulse of the Mediterranean Jurassic brachiopods, hallmarked by the pygopides, culminated in the Tithonian (VOrOs 2022). Considering strictly the Transdanubian Range, the Early Jurassic brachiopod faunas were described in detail and illustrated properly (Sinemurian: DuLat 1992, 2003; Pliensbachian: VOr6s 2009), just as the Late Jurassic (Kimmeridgian and Tithonian: VOrOs 2022). The present author has been engaged with the significant Middle Jurassic brachiopod fauna since the 1980’s but the efforts resulted only in preliminary reports (VOROs 1997, 2001; VOROs & DuLAt 2007). Now, due to the detailed work in the last years, the time has come to compile and publish the present volume. The available material is extremely abundant (nearly 1300 specimens) and diverse. Besides 15 species of the Rhynchonellida, it includes 13 taxa of the Terebratulida. One species and four genera are introduced as new taxa. The whole material encompasses several rich assemblages from the Bajocian and two less diverse from the Bathonian. The present volume is devoted primarily to the taxonomic revision, description, and illustration of the Middle Jurassic brachiopods, collected from the Transdanubian Range in the last decades, and available in the public collections. The rich fossil material gave reason for an attempt to develop some notes on the palaeoenvironmental aspects. In addition, a detailed palaeobiogeographical evaluation of the fauna in relationship to other assemblages of the Western Tethyan domain is presented.

Voros, Attila. The Middle Jurassic brachiopods of the Transdanubian Range, Hungary / A. Voros. – Budapest : Supervisory authority for regulatory affairs, 2024 - (Geologica Hungarica).Ind. of genus a. species names: p. 115-116.