Devonian

Just out | Palynological data from sediments of the Hunsruckschiefer type, Lower Devonian of the SW Hunsruck, Germany @ Bulletin of Geosciences

Just out @ Bulletin of Geosciences Palynological data from sediments of the Hunsruckschiefer type, Lower Devonian of the SW Hunsruck, Germany Author(s) Brocke R, Kneidl V, Wilde V, Riegel W Abstract: The Devonian Hunsruckschiefer is an outstanding Palaeozoic Fossillagerstatte, widely known for the exceptional preservation of a highly diverse fossil assemblage at the classical sites of Gemunden and Bundenbach. However, biostratigraphical marker fossils are rare and tectonic deformation in the

Just out | Famennian (Upper Devonian) conodont zonation: revised global standard @ Bulletin of Geosciences

Just out @ Bulletin of Geosciences Famennian (Upper Devonian) conodont zonation: revised global standard Author(s) Spalletta C, Perri MC, Over DJ, Corradini C Abstract: The revision of the Famennian part of the “Late Devonian Standard Conodont Zonation” is based on the in-equivalence between biozones and time, and the rejection of the presumed single phyletic concept on which the previous zonation was based. It is also intended to simplify the zonation,

Just out | The phacopine trilobite genera Morocops Basse, 2006 and Adrisiops gen. nov. from the Devonian of Morocco @ Bulletin of Geosciences

Just out @ Bulletin of Geosciences The phacopine trilobite genera Morocops Basse, 2006 and Adrisiops gen. nov. from the Devonian of Morocco Author(s) Viersen AP van, Holland D, Koppka J Abstract: Well-preserved specimens of the phacopine trilobites Morocops Basse (= Barrandeops McKellar & Chatterton) and Adrisiops gen. nov. are recorded from upper Emsian strata in Morocco. Morocops is a problematic taxon; the close similarities of its stratigraphically youngest members to

Just out | From body scale ontogeny to species ontogeny: Histological and morphological assessment of the Late Devonian acanthodian Triazeugacanthus affinis from Miguasha, Canada @ PLOS one

Just out @ PLOS one From body scale ontogeny to species ontogeny: Histological and morphological assessment of the Late Devonian acanthodian Triazeugacanthus affinis from Miguasha, Canada Author(s) Marion Chevrinais, Jean-Yves Sire, Richard Cloutier Abstract: Growth series of Palaeozoic fishes are rare because of the fragility of larval and juvenile specimens owing to their weak mineralisation and the scarcity of articulated specimens. This rarity makes it difficult to describe early vertebrate growth patterns

Just out | Strontium Distribution in Upper Devonian Conodont Elements: A Palaeobiological Proxy @ Rivista Italiana di Paleontologia e Stratigrafia

Just out @ Rivista Italiana di Paleontologia e Stratigrafia Strontium Distribution in Upper Devonian Conodont Elements: A Palaeobiological Proxy Author(s) Andrey V. Zhuravlev, Sergey S. Shevchuk Abstract: Conodonts are an extinct group of marine animals possessing debated affinities. The conodont elements are composed of calcium phosphate [apatite (CaF)] and collagen-like proteins. Distribution of Sr in the bioapatite of albid, lamellar and paralamellar tissues of some Upper Devonian conodont element crowns

It's a Bug's World | New Species Reported This Week

It’s a bug’s world and it was definitely a bug’s week. Invertebrates were clearly dominant in new species reported this week, insects and beetles being the most numerous. Arthropodes, echinoderms, mollucs, cycads, conodonts, radiolaria were also described in a week full of new taxonomic descriptions. The new species reported this week come from America (USA and Patagonia), from Africa (Tunisia and Madagascar), Europe (Germany, Austria and Russia), and Asia (Myanmar). Full account of fossil species reported this week: Palaeosiamoglaris leinhardi gen. et sp. nov., P. burmica sp. nov., and P. inexpectata sp. nov., three new Prionoglarididae from Cretaceous Burmese amber,

Just out | Icriodus marieae, a new icriodontid conodont species from the Middle Devonian @ PalZ

Just out @ PalZ Icriodus marieae, a new icriodontid conodont species from the Middle Devonian Author(s) Thomas J. Suttner, Erika Kido, Andreas W. W. Suttner Abstract: A new conodont species, Icriodus marieae, is described from pelagic limestone beds of the Carnic Alps (Austria). Specimens are obtained from the upper part of the Valentin Formation (Central Carnic Alps) and range from the latest Eifelian to middle Givetian. Significantly differing from other icriodontid conodonts is that the icriodontan element of

Just out | Unique diversity of acanthothoracid placoderms (basal jawed vertebrates) in the Early Devonian of the Prague Basin, Czech Republic: A new look at Radotina and Holopetalichthys @ PLOS one

Just out @ PLOS one Unique diversity of acanthothoracid placoderms (basal jawed vertebrates) in the Early Devonian of the Prague Basin, Czech Republic: A new look at Radotina and Holopetalichthys Author(s) Valéria Vaškaninová, Per E. Ahlberg Abstract: The taxonomy of Early Devonian placoderm material from the Lochkovian and Pragian of the Prague basin, previously attributed to the genera Radotina and Holopetalichthys, is revised. The Pragian species Radotina tesselata Gross 1958 shares

Just out | New morphological information on, and species of placoderm fish Africanaspis (Arthrodira, Placodermi) from the Late Devonian of South Africa @ PLOS one

Just out @ PLOS one New morphological information on, and species of placoderm fish Africanaspis (Arthrodira, Placodermi) from the Late Devonian of South Africa Author(s) Robert W. Gess, Kate M. Trinajstic Abstract: Here we present a new species of placoderm fish, Africanaspis edmountaini sp. nov., and redescribe Africanaspis doryssa on the basis of new material collected from the type locality of Africanaspis. The new material includes the first head shields

Just out | A reconstruction of the lophophore of Devonian rhynchonellids (Brachiopoda) by using X-Ray micro-CT @ Paleontological Journal

Just out @ Paleontological Journal A reconstruction of the lophophore of Devonian rhynchonellids (Brachiopoda) by using X-Ray micro-CT Author(s) A. V. Pakhnevich Abstract: The X-ray microtomographic study has revealed contrast inclusions (possibly iron compounds) in several shells of Devonian (Emsian–Famennian) rhynchonellids (Brachiopoda) from Transcaucasia. Judging by the location of inclusions, they may correspond to soft tissues of lophophores. The spire-shaped inclusion in the shell of the holotype of the Late Devonian Sharovaella mirabilis