A New Early Jurassic Rhynchonellid Brachiopod From the Western Tethys and Implications for Systematics of Rhynchonellids From the Triassic–jurassic Boundary

Early Jurassic brachiopods from diverse localities of northern Anatolia (Turkey)

“…Order Rhynchonellida Kuhn, 1949Superfamily Pugnacoidea Rzhonsnitskaia, 1956 Family Basiliolidae Cooper, 1959Subfamily Pamirorhynchiinae Ovcharenko, 1983 Genus Jakubirhynchia Tomašových, 2006 Jakubirhynchia? cf.…”

“…Subsequently, many authors regarded the two species as synonymous, with plicatissima as senior synonym. Recently, following the detailed revisions by Tomašových (2006) and considering the data given by Dulai (1992Dulai ( , 2003, Vörös (2009) restored Böckh's species name hungarica for the forms which do not have planareas, but show fi ne riblets on their fl at or gently convex lateral parts. Th e species hungarica is placed here to Calcirhynchia on the basis of serial sections of "Calcirhynchia plicatissima", published by Dulai (1992Dulai ( , 2003 Remarks -Our specimen has laterally expanded subquadrangular outline, weak defl ections on its lateral commissures and biplicate anterior margin with two, sharp, equidimensional (i.e.…”

First evidence of brachiopod diversification after the end-Triassic extinction from the pre-Pliensbachian Internal Subbetic platform (South-Iberian Paleomargin)

“…On the other hand, C. subcostellata shares several features with the earliest Jurassic stock of multicostate and bifurcate forms mainly represented by the genus Jakubirhynchia (Tomašových, 2006), but despite the fact that the internal structure of C. subcostellata remains unknown, this taxon has stronger and wider ribbing pattern than any species attributed to Jakubirhynchia so far (e.g., J. latifrons, J. fascicostata, J. laevicosta).…”

“…Identical equivalence has been documented and updated in the Transdanubian Ranges and the Northern Calcareous Alps (Vörös, 2009;Mandl et al, 2010). The dorsal outline, the folding pattern and essentially the absence of planareas make the specimens found in the Venta Quesada section attributable to C. hungarica (Böckh) instead of C. plicatissima (see Tomašových, 2006, andVörös 2009, for a wider discussion in this sense). Lacking a thorough revision of the profuse attributions to C. plicatissima in the Western Tethys as a whole, the synonymy list provided herein agrees with the detailed analysis carried out by Vörös (2009) on this species, and subsequent attributions to C. hungarica.…”

“…The critical end-Triassic extinction event triggered substantial changes in the benthic communities, particularly in brachiopod assemblages (Sandy, 1995;Hallam, 1996Hallam, , 2002Dulai, 2001Dulai, , 2003Tomašových and Siblík, 2007;Vörös et al, 2016). Diverse brachiopod clades were severely affected by the end-Triassic mass extinction and subsequent brachiopod records are very scarce in the lowermost Jurassic sediments (Dulai, 2001;Tomašových, 2006). In the last decades, new results suggested that post-extinction recovery of the background conditions for the establishment of diversified brachiopod communities occurred in the Western Tethys earlier in the Jurassic than originally expected.…”