Famennian tabulate corals were very rare worldwide, and their biodiversity was relatively low. Here we report a unique tabulate fauna from the mid- and late Famennian of the western part of the Holy Cross Mountains (Kowala and Ostrówka), Poland. We describe eight species (four of them new, namely ?Michelinia vinni sp. nov., Thamnoptychia mistiaeni sp. nov., Syringopora kowalensis sp. nov. and S...

frasnian - famennian boundary in the kal-e-sardar section (east of tabas, central iran) is investigated on the basis of conodonts. distribution of thirty-three species and subspecies in the stratigraphic column enables us to recognize a barren interval and five biozones; upper rhenana, upper part of upper rhenana - linguiformis, lower to middle triangularis, upper triangularis, lower crepida. b...

Seed plants underwent first major evolutionary radiation in the Late Devonian (Famennian), as evidenced by the numerous ovules described to date. However, the early pollen organs are underrepresented, so that their structure and evolution remain poorly known. Here we report a new taxon of pollen organ Placotheca minuta from the Late Devonian. The synangium consists of many basally and more or l...

The Devonian–Carboniferous transition was marked by a series of perturbations in the geological and biological evolution. palaeontological data from Transcaucasia allowed bryozoan diversity dynamics on northern Gondwanan margin (southern periphery Palaeo-Tethys Ocean) to be documented at this transition. Taxonomic ranges 43 species, 26 genera, 19 families, 4 orders were analysed reveal changes ...

Large-scale magnetic susceptibility (MS) variations in ancient sediments are usually interpreted as related to sea-level and climate changes affecting the erosional regime amount of detrital input. To constrain such environmental during Famennian, we compared MS records representative sections pelagic limestones (1) Avalonian margin Laurussia [Sessacker (SES) Beringhauser Tunnel (BHT), Rhenish ...

Pollen organ Telangiopsis sp., associated with but not attached to vegetative fronds, has been collected from the Upper Devonian (Famennian) Wutong Formation, Dongzhi County, Anhui Province, China. Fertile axes with terminal pollen organs are dichotomous for 2-4 times and may be proximally attached by fragmentary pinnules. Pollen organs are synangiate and borne on the top of a short stalk. Syna...

This contribution contains the 3D models of set Famennian conodont elements belonging to species Polygnathus glaber and communis analyzed in following publication: Renaud et al. 2021: Patterns bilateral asymmetry allometry Late Devonian Polygnathus. Palaeontology,

The earliest known ovules in the Late Devonian (Famennian) are borne terminally on fertile branches and are typically enclosed in a cupule. Among these ovules are some that have terete integumentary lobes with little or no fusion. Here, we report a new taxon, Latisemenia longshania, from the Famennian of South China, which bears cupulate ovules that are terminal as well as opposite on the ferti...