Devonian

Just out | Further study of Late Devonian seed plant Cosmosperma polyloba: its reconstruction and evolutionary significance @ BMC Evolutionary Biology

Just out @ BMC Evolutionary Biology Further study of Late Devonian seed plant Cosmosperma polyloba: its reconstruction and evolutionary significance Author(s) Le Liu, Deming Wang, Meicen Meng and Jinzhuang Xue Abstract: Background The earliest seed plants in the Late Devonian (Famennian) are abundant and well known. However, most of them lack information regarding the frond system and reconstruction. Cosmosperma polyloba represents the first Devonian ovule in China and East Asia, and its cupules, isolated synangiate pollen organs and pinnules have been studied

Just out | Restudy of the Early Devonian rugose coral Xystriphylloides from South China @ Palaeoworld

Just out @ Palaeoworld Restudy of the Early Devonian rugose coral Xystriphylloides from South China Author(s) Chang-Min Yu Abstract: Early Devonian rugose coral Xystriphylloides in South China is restudied from the perspective of its taxonomic definition, biostratigraphy, paleoecology, and implication for the Yujiang Event. The diagnostic characters of the genus are clarified and its taxonomic position is also revised. In particular the septa of Xystriphylloides are shown to be fibrous rather than trabeculate. Xystriphylloides distinctus Yu n. sp. is

Just out | Ammonoids from the late Givetian Taouzites Bed of Ouidane Chebbi (eastern Tafilalt, SE Morocco) @ Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen

Just out @ Neues Jahrbuch für Geologie und Paläontologie – Abhandlungen Ammonoids from the late Givetian Taouzites Bed of Ouidane Chebbi (eastern Tafilalt, SE Morocco) Author(s) Bockwinkel, Jürgen; Becker, Ralph Thomas; Aboussalam, Zhor Sarah Abstract: A marly, nodular limestone bed at Ouidane Chebbi in the eastern Tafilalt (eastern ramp of the Tafilalt Platform, SE Morocco) yielded a rich and diverse ammonoid fauna of the late Givetian Taouzites taouzensis Zone (MD III-D), which falls in the higher

Just out | The genus Gonioclymenia (Ammonoidea; Late Devonian) in Central Europe @ Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen

Just out @ Neues Jahrbuch für Geologie und Paläontologie – Abhandlungen The genus Gonioclymenia (Ammonoidea; Late Devonian) in Central Europe Author(s) Korn, Dieter Abstract: The stratigraphically important Late Devonian ammonoid genus Gonioclymenia is revised based on material from the type regions in the Franconian Forest and the Rhenish Mountains. Based on differences in conch shape, suture line and particularly in sculpture, two Franconian species (G. speciosa, G. subcarinata) and five Rhenish species (G. subcarinata, G. praematura,

Just out | A new subdisarticulated machaeridian from the Middle Devonian of China: Insights into taphonomy and taxonomy using X-ray microtomography and 3D-analysis @ Acta Palaeontologica Polonica

Just out @ Acta Palaeontologica Polonica A new subdisarticulated machaeridian from the Middle Devonian of China: Insights into taphonomy and taxonomy using X-ray microtomography and 3D-analysis Author(s) Benjamin Gügel, Kenneth De Baets, Iwan Jerjen, Philipp Schuetz, and Christian Klug Abstract: Machaeridians are an extinct group of armoured annelids, which are mainly known from isolated sclerites present from the Ordovician to the Permian. Based on articulated specimens with preserved soft-tissues and trace

Just out | The presumed oldest flying insect: more likely a myriapod? @ PeerJ

Just out @ PeerJ The presumed oldest flying insect: more likely a myriapod? Author(s) Carolin Haug, Joachim T. Haug Abstract: The early fossil record of insects is scarce, with only few finds in the Devonian. All these finds appear problematic and controversial, partly due to incomplete preservation and challenging interpretation of many structures. We provide details of one of these important forms, Rhyniognatha hirsti from the famous Rhynie Chert Lagerstätte with

Just out | Redescription of Szelepis Liu, 1981 (Placodermi, Arthrodira) from the Lower Devonian of China @ Journal of Vertebrate Paleontology

Just out @ Journal of Vertebrate Paleontology Redescription of Szelepis Liu, 1981 (Placodermi, Arthrodira) from the Lower Devonian of China Author(s) Vincent Dupret, Min Zhu & Jun-Qing Wang Abstract: The skull roof of the species Szelepis yunnanensis (Liu, 1979) from the Early Devonian of Yunnan is redescribed, as well as other Szelepis material previously published. It appears that only the holotype of S. yunnanensis can be confidently assigned to this genus.

Just out | A three-dimensional placoderm (stem-group gnathostome) pharyngeal skeleton and its implications for primitive gnathostome pharyngeal architecture @ Journal of Morphology

Just out @ Journal of Morphology A three-dimensional placoderm (stem-group gnathostome) pharyngeal skeleton and its implications for primitive gnathostome pharyngeal architecture Author(s) Martin D. Brazeau, Matt Friedman, Anna Jerve, Robert C. Atwood Abstract: The pharyngeal skeleton is a key vertebrate anatomical system in debates on the origin of jaws and gnathostome (jawed vertebrate) feeding. Furthermore, it offers considerable potential as a source of phylogenetic data. Well-preserved examples of pharyngeal skeletons from

Just out | A new diminutive euphyllophyte from the Middle Devonian of West Junggar, Xinjiang, China and its evolutionary implications @ Alcheringa

Just out @ Alcheringa A new diminutive euphyllophyte from the Middle Devonian of West Junggar, Xinjiang, China and its evolutionary implications Author(s) Hong-He Xu, Yao Wang, Peng Tang & Yi Wang Abstract: A diminutive euphyllophyte, Douaphyton levigata gen. et sp. nov., is described from the upper Middle Devonian (Givetian) Hujiersite Formation of West Junggar, Xinjiang, China. The plant consists of more than three orders of axis branching, each axis being less

Just out | Conodont diversity across the late Eifelian Kačák Episode of the southern Alpine realm (central Carnic Alps, Austria/Italy) @ Palaeogeography, Palaeoclimatology, Palaeoecology

Just out @ Palaeogeography, Palaeoclimatology, Palaeoecology Conodont diversity across the late Eifelian Kačák Episode of the southern Alpine realm (central Carnic Alps, Austria/Italy) Author(s) Thomas J. Suttner, Erika Kido, Carlo Corradini, Stanislava Vodrážková, Monica Pondrelli, Luca Simonetto Abstract: The polyphased Kačák Episode near the Eifelian-Givetian boundary (Middle Devonian), well documented globally, resembles other global biotic extinction events driven by climate change. High-resolution conodont biodiversity patterns from shallow marine, slope and