This study includes a thorough systematic analysis of the ichnological record in the Late Triassic siliciclastic Nayband Formation of the Tabas Block, Central Iran. A total of 48 ichnospecies representing 28 ichnogenera are identified and their preservation aspects, paleoecological aspects, producers and behavioral aspects are discussed. The ichnofauna includes Arenicolites, Asterosoma, Bergaue...

Four supergiant and numerous giant gasfields have been discovered in the Southwest Iran which produce from Permian-Triassic carbonates belong to the upper member of Dalan Formation and Kangan Formation. In this research a detailed biostratigraphic, microfacies and sequence stratigraphic study of the late Middle Permian to Triassic successions was undertaken from 850 thin sections prepared from ...

Flying fishes are extraordinary aquatic vertebrates capable of gliding great distances over water by exploiting their enlarged pectoral fins and asymmetrical caudal fin. Some 50 species of extant flying fishes are classified in the Exocoetidae (Neopterygii: Teleostei), which have a fossil record no older than the Eocene. The Thoracopteridae is the only pre-Cenozoic group of non-teleosts that sh...

Abstract Ammonoids suffered a diversity bottleneck during the Permian-Triassic mass extinction (PTME) and experienced rapid diversification in Early Triassic. However, kinds of ammonoids that were more likely to survive PTME fueled subsequent are still poorly known. We compiled comprehensive morphological data set used nonmetric multidimensional scaling method reveal impact on selectivity ammon...

A new, extraordinary palaeontinid Hallakkungis amisanus Nam, Wang &Szwedo, gen. et sp. nov., from the Upper Triassic of the Amisan Formation in Boryeong City, Korea is described. It is the first Palaeontinidae from Korea. The newly described taxon displays a mosaic of characters present in presumed ancestors of this insect family and some highly advanced features.

Unspecified DOI: 10.1111/j.1751-8369.1990.tb00382.x Posted at the Zurich Open Repository and Archive, University of Zurich ZORA URL: http://doi.org/10.5167/uzh-112675 Originally published at: Mørk, Atle; Vigran, Jorunn Os; Hochuli, Peter A (1990). Geology and palynology of the Triassic succession of Bjørnøya. Polar Research, 8(2):141-163. DOI: 10.1111/j.1751-8369.1990.tb00382.x Geology and paly...