Results 51 to 60 of about 1,869 (195)

Upper lower Cambrian (provisional Cambrian Series 2) trilobites from northwestern Gansu Province, China [PDF]

Estonian Journal of Earth Sciences, 2014
Upper lower Cambrian (provisional Cambrian Series 2) trilobites are described from three sections through the Shuangyingshan Formation in the Beishan area, northwestern Gansu Province, China. The trilobite fauna is dominated by eodiscoid and corynexochid
Jan Bergström†, Zhou Zhiqiang, Per Ahlberg, Niklas Axheimer   +3 more
doaj   +1 more source

Class Trilobita (including agnostoids) from Argentine Precordillera

Biogeographia – The Journal of Integrative Biogeography, 2023
Fil: Devincenzi, Susana Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo.
Devincenzi, Susana Mariel, Bordonaro, Osvaldo Luis   +1 more
openaire   +4 more sources

A new occurence of the genus Tonkinella in northern Spain and the Middle Cambrian intercontinental correlation [PDF]

, 2003
The genus Tonkinella is a typical polimeroid trilobite in lower Middle Cambrian rocks from Vietnam, Canada, U.S.A., India, Korea, Siberia, China and Argentina. It has recently been found in the Mediterranean region (Iberian Chain, northeastern Spain). In
Dies, Mª E., Gozalo, R., Gámez Vintaned, J.A., Mayoral, E., Muñiz, F.   +4 more
core   +4 more sources

The first hirnantian (Uppermost Ordovician) Odontopleurid trilobite from western Gondwana (Argentina) [PDF]

, 2014
An odontopleurid trilobite remain is described for the fi rst time from Hirnantian (uppermost Ordovician) rocks of Western Gondwana. Very rare material, represented by a single left librigena, comes from a new fossil locality of the Don Braulio Formation
Halpern, Karen, Meroi Arcerito, Facundo René, Rustán, Juan José   +2 more
core   +1 more source

Biostratigraphy and correlation of the Cambrian Series 2 (Stage 4) to Miaolingian (Wuliuan) Thorntonia Limestone, south‐eastern Georgina Basin (Queensland, Australia)

Papers in Palaeontology, Volume 11, Issue 5, September/October 2025.
Abstract The Australian Cambrian stratigraphic record is one of the most complete for any continent. However, there is a general division, with older Cambrian rocks in South Australia (predominantly Terreneuvian, Stage 2 to Miaolingian, Wuliuan) and younger rocks in northern Australia (mostly latest Series 2, Stage 4 and younger), with minimal ...
Marissa J. Betts, Patrick M. Smith, John R. Paterson, Evelyn M. Mervine, Daniel A. Stirling, James D. Holmes   +5 more
wiley   +1 more source

The evolutionary history of Coleoptera (Insecta) in the late Palaeozoic and the Mesozoic

Systematic Entomology, Volume 49, Issue 3, Page 355-388, July 2024.
Structural transformations of the elytra and abdomen played a major role in the early beetle evolution in the Permian. Polyphaga appear late in the fossil record, with only a few fossils of Elateriformia in the Late Triassic. Several factors were involved in the enormous diversification of beetles in the Cretaceous but evolutionary interactions with ...
Rolf G. Beutel, Chunpeng Xu, Edmund Jarzembowski, Robin Kundrata, Brendon E. Boudinot, Duane D. McKenna, Jakub Goczał   +6 more
wiley   +1 more source

Goldius angusticalix Sp. Nov. (Trilobita, Scutelluidae) from the Couvin Formation (Middle Devonian) in Belgium, with a preliminary list of Scutelluid Species from the Ardennes [PDF]

, 2010
Scutelluids are rare trilobites in the Devonian of the Ardennes (Belgium, France). Goldius angusticalix sp. nov. and Scabriscutellum sp. A are recorded from the Couvin Formation (lower Eifelian) in Nismes, Belgium.
De Wilde, B., Van Viersen, A.P.
core  

Making the most of clade selection [PDF]

, 2017
Clade selection is unpopular with philosophers who otherwise accept multilevel selection theory. Clades cannot reproduce, and reproduction is widely thought necessary for evolution by natural selection, especially of complex adaptations.
Doolittle, W. Ford
core   +1 more source

Abnormal trilobites from the Silurian and Devonian of Europe

Acta Palaeontologica Polonica
Malformed trilobites have been documented in deposits ranging from the Cambrian to the Permian. Continued examination of novel malformed specimens provides insight into how trilobites recovered from injuries, experienced genetic abnormalities, and ...
Russell D.C. Bicknell, Patrick M. Smith, Lisa Amati, Melanie J. Hopkins   +3 more
doaj   +1 more source

A xandarellid artiopodan from Morocco – a middle Cambrian link between soft-bodied euarthropod communities in North Africa and South China [PDF]

, 2017
NB. A corrigendum [correction] for this article was published online on 09 May 2017; this has been attached to this article as an additional file. This work is licensed under a Creative Commons Attribution 4.0 International License.
AC Maloof, AY Ivantsov, C Aria, CD Walcott, D Fu, D Waloszek, D Waloszek, DA Legg, DA Legg, DA Legg, DA Legg, DC García-Bellido, DC García-Bellido, DEG Briggs, DEG Briggs, DL Bruton, E Landing, E Landing, ELO Martin, G Geyer, G Geyer, G Geyer, G Kühl, GA Boxshall, GD Edgecombe, GD Edgecombe, GE Budd, GE Budd, HB Whittington, HB Whittington, HB Whittington, J Bergström, J Chen, J Ortega-Hernández, J Ortega-Hernández, J Ortega-Hernández, J Ortega-Hernández, J Ortega-Hernández, J Ortega-Hernández, J Yang, J Yang, JJ Álvaro, JJ Álvaro, JL Cisne, JR Hendricks, JR Paterson, JR Paterson, JR Paterson, JT Haug, L Ramsköld, L Ramsköld, M Stein, M Stein, M Stein, NJ Butterfield, P Van Roy, P Van Roy, Q Liu, R Lerosey-Aubril, R Lerosey-Aubril, RA Fortey, RA Fortey, S Conway Morris, SE Gabbott, SP Hesselbo, TH Torsvik, W Stürmer, X Hou, X Hou, X Zhang, X Zhang, X Zhang, X Zhang, X-L Zhang, Y Liu   +74 more
core   +1 more source