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Rhynchonelliform brachiopods and trilobites of the ‘upper dark interval’ in the koněprusy area (Devonian, Eifelian, Kačák Event; the Czech Republic)

Abstract

The dark pelbiodetrital limestone beds of the ‘upper dark interval’ in the Koněprusy area, Central Bohemia, the Czech Republic, the assumed manifestation of the Kačák Event in this area, yielded a moderately diverse faunule of rhynchonelliform brachiopods and trilobites. In total, 15 species have been recognized (13 brachiopods and 2 trilobites), but the majority of them are only tentatively determined to generic level due to fragmentation, rarity or poor preservation. Brachiopod genera Leptaenopyxis, Protodouvillina, Douvillinella, Holynetes, Poloniproductus, Iridistrophia, Mystrophora, Pentamerella, Quasidavidsonia, Carinatina, Mimatrypa, Leptathyris, Eoreticularia and a single trilobite Astycoryphe were determined. The mode of preservation indicates transport of skeletal bioclasts from shallower parts of the basin and their fragmentation in debris flows together with fragments of terrestrial plants, crinoid detritus and numerous pelagic fossils, especially the dacryoconarid Nowakia ex gr. otomari. Associated conodonts (as well as trilobites) indicate a late Eifelian age for the fauna (Polygnathus ensensis Zone).

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Llandovery microfossils and microfacies of the Hýskov section, Prague Basin

Abstract

The lower Silurian strata of the Prague Basin, as well as in many other regions, are primarily represented by black shales, with limited to no record of benthic life. In this paper, we describe an exceptional late Aeronian volcanic-carbonate succession from the Hýskov locality near Beroun, which contains a diverse and well-preserved fossil assemblage and specific microfacies features. The studied section is mostly represented by well-washed, poorly sorted skeletal grainstones, rudstones and floatstones along with volcaniclastic material. The environment is interpreted as agitated, above storm wave base, and with rapid sedimentation and burial. The collection of acid-resistant microfossils includes abundant scolecodonts, conodonts and chitinozoans, of which only the chitinozoans have previously been studied. The scolecodonts recovered represent at least 14 polychaete genera and 20 species. The fauna bears a great similarity to the early Silurian assemblages previously reported from Baltica, and some environmentally sensitive species allow constraining the assemblage to shallow-shelf settings. The recovered conodonts similarly show close affinities to Baltic faunas, and suggest a Rhuddanian – Aeronian age for the studied section. The chitinozoan assemblage, containing at least eight species, is dominated by Conochitina, and most likely belongs to the C. alargada Biozone.

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Revision of the skeletal morphology of Eodiscoglossus santonjae, an Early Cretaceous frog from northeastern Spain, with comments on its phylogenetic placement

Abstract

The holotype of the “archaeobatrachian” (i.e., non-neobatrachian) frog Eodiscoglossus santonjae Villalta, 1954 is redescribed herein, with focus on some features that have been misinterpreted. The specimen is articulated and poorly preserved as fragmentary bones and impressions, and is from the Early Barremian La Pedrera de Rúbies Lithographic Limestones Formation at Santa Maria de Meià, Lleida Province. Other specimens from the same fossil site and unit are also examined and their former allocation to the same species critically reconsidered, with the conclusion that more than one taxon might be represented in this sample. Previous viewpoints on the systematic placement of E. santonjae, usually considered a discoglossid, are assessed. However, a full revision of the Jurassic and Cretaceous specimens ascribed to the genus is required in order to resolve its phylogenetic position. Hence, E. santonjae is provisionally considered as Anura incertae sedis.

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Cambrian hyoliths of the Příbram-Jince Basin (Barrandian area, the Czech Republic): A review of recorded taxa

Academy of Sciences) Marr, J. E. (1880): On the Predevonian rocks of Bohemia. – Quarterly Journal of the Geological Society, 36: 591–619. https://doi.org/10.1144/GSL.JGS.1880.036.01-04.44 Martí Mus, M., Bergström, J. (2005): The morphology of hyolithids and its functional implications. – Palaeontology, 48(6): 1139–1167. https://doi.org/10.1111/j.1475-4983.2005.00511.x Martí Mus, M., Bergström, J. (2007): Skeletal microstructure of helens, lateral spines of hyolithids. – Palaeontology, 50(5): 1231–1243. https://doi.org/10.1111/j.1475

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Eruption age of Kannabe volcano using multi-dating: Implications for age determination of young basaltic lava flow

exhibiting a skeletal texture. Clear euhedral plagioclase coexists with minor dusty anhedral plagioclase. The groundmass shows an intergranular texture with microlites of pyroxene, olivine, plagioclase, and opaque minerals. Quartz was not observed, even as a xenocryst. Fig. 3 Optical photomicrograph of a Kannabe lava sample 4 under crossed polarizer: Ol, olivine; Pl, plagioclase. 3 Analytical procedures Paleomagnetic dating Paleomagnetic samples were taken from six outcrops of Kannabe lava flows. Sampling locations are presented in Fig. 1 . Twenty

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The mammalian fauna of Barová Cave (Moravian Karst, the Czech Republic)

Dental Structures. – In: Carter, J. G. (ed.), Skeletal Biomineralization: Patterns, Process and Evolutionary Trends. Van Nostrand Reinhold, New York, pp. 531–556. https://doi.org/10.1007/978-1-4899-5740-5_21 Chaplin, R. E. (1971): The study of animal bones from archaeological sites. – Seminar press, London and New York, 170 pp. Curci, A., Tagliacozzo, A. (2000): Determinazione dell’eta di morte e della stagione di cattura attraverso lo studio dei livelli di accrescimento di cemento e dentina nei denti di mammiferi: l’esempio di Riparo Dalmeri (TN

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Chronology of multicultural site Sowinki in Greater Poland

scarcity of other skeletal cemeteries from the time of the early Piasts’ dynasty. Also, findings concerning the site provide a valuable background for the study on the emergence of the early medieval culture of elites. Notably, some of the artefacts unearthed at Sowinki have analogies with Scandinavian finds of the Middle and Late Viking periods. 2 Archaeological background Sowinki site no. 23A is a multicultural site. The excavations covered an area of about 1.5 ha and revealed altogether 580 features representing 7 chronological-cultural horizons, which include

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A new find of discosauriscid seymouriamorph from the Lower Permian of Boskovice Basin in Moravia (the Czech Republic)

of the Boskovice Furrow (Czech Republic). – Philosophical Transactions of the Royal Society of London, B, 352: 257–302. http://dx.doi.org/10.1098/rstb.1997.0021 Klembara, J. (2005): A new discosauriscid seymouriamorph tetrapod from the Lower Permian of Moravia, Czech Republic. – Acta Palaeontologica Polonica, 50: 25–48. Klembara, J. (2009a): The skeletal anatomy and relationships of a new discosauriscid seymouriamorph from the Lower Permian of Moravia (Czech Republic). – Annals of Carnegie Museum, 77: 451–484. http://dx.doi.org/10

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The human bone oxygen isotope ratio changes with aging

analysis: a report from Britain. Antiquity 78(299): 127–141. [13] Buikstra JE and Ubelaker DH (eds.), 1994. Standards for data collection from human skeletal remains. Arkansas Archeological Survey, Fayetteville, Ark. [14] Chenery C, Müldner G, Evans J, Eckardt H and Lewis M, 2010. Strontium and stable isotope evidence for diet and mobility in Roman Gloucester, UK. Journal of Archaeological Science 37: 150–163, DOI 10.1016/j.jas.2009.09.025. [15] Coplen TB, 1994. Reporting of stable hydrogen

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Frog origins: inferences based on ancestral reconstructions of locomotor performance and anatomy

-Kampitsi, M., Bonneaud, C. (2014): Jumping performance in the highly aquatic frog, Xenopus tropicalis : sex-specific relationships between morphology and performance. – PeerJ, 2: e661 http://dx.doi.org/10.7717/peerj.661 Jenkins, F. A., Shubin, N. H. (1998): Prosalirus bitis and the anuran caudopelvic mechanism. – Journal of Vertebrate Paleontology, 18: 495–510. http://dx.doi.org/10.1080/02724634.1998.10011077 Jorgensen, M. E., Reilly, S. M. (2013): Phylogenetic patterns of skeletal morphometrics and pelvic traits in relation to locomotor mode in frogs

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