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phacopid

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Journal Article
Published: 01 July 2023
Journal of Paleontology (2023) 97 (4): 958.
...Rui-Wen Zong Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of The Paleontological Society 2023 The Author(s) Recently, Zong ( 2023 ) described two new species of phacopid trilobites, namely Omegops honggulelengensis Zong, 2023 and Omegops xiangi...
Journal Article
Published: 01 July 2023
Journal of Paleontology (2023) 97 (4): 891–905.
...Rui-Wen Zong Abstract The suborder Phacopina, characterized by schizochroal eyes, is among the most common groups of trilobites in Devonian strata. The marine sediments of the Famennian in western Junggar, Xinjiang, contain abundant low-disparity phacopids, which have previously been designated...
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Journal Article
Published: 01 November 2019
Journal of Paleontology (2019) 93 (6): 1105–1125.
...-holaspid transition on the Ordovician phacopid trilobite Calyptaulax strasburgensis . An extensive dataset of silicified cranidia and pygidia collected from the mid-Ordovician Edinburg Formation of Virginia was subjected to a series of multivariate analyses, with a primary focus on the intersections...
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Journal Article
Published: 19 September 2016
Journal of Paleontology (2016) 90 (6): 1100–1111.
...Juan José Rustán; Diego Balseiro Abstract Some Silurian-Devonian Argentinian trilobites characterized by infaunal behavior during molting are considered. After a taxonomic reappraisal, a species previously referred to a lineage of the phacopid Paciphacops is proposed as Echidnops taphomimus new...
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Journal Article
Published: 01 November 2013
Geological Magazine (2013) 150 (6): 1021.
... A. , Benyoucef M. & Brice D. 2013 . First occurrence of a phacopid trilobite faunule from the Upper Devonian of Saoura Valley, Algeria...
Journal Article
Published: 16 May 2013
Geological Magazine (2013) 150 (6): 1002–1021.
...CATHERINE CRÔNIER; FATIMA ZOHARA MALTI; ANGELA FRANÇOIS; MADANI BENYOUCEF; DENISE BRICE Abstract Phacopid trilobites are relatively widespread in Devonian deposits of north Gondwana and some have been collected from several sections of the Saoura Valley in SW Algeria. New occurrences of phacopids...
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Journal Article
Journal: Geology
Published: 01 May 2013
Geology (2013) 41 (5): 607–610.
... (organic pigments) or sclerochromes (structural colors) embedded in fossilized skeletal remains. More than 25 exceptionally well preserved phacopid trilobites with spotted patterns are described from the Middle Devonian of western and central New York State (USA). The small (∼0.23 mm) circular markings...
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Journal Article
Published: 09 September 2008
Geological Magazine (2009) 146 (1): 12–33.
...RAIMUND FEIST; KENNETH J. MCNAMARA; CATHERINE CRÔNIER; RUDY LEROSEY-AUBRIL Abstract A diverse fauna of phacopid trilobites is described from the Late Devonian (middle Frasnian to early Famennian) of the northern Canning Basin, Western Australia. One new genus and four species in two genera...
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Journal Article
Published: 01 July 2007
Journal of Paleontology (2007) 81 (4): 684–700.
...CATHERINE CRÔNIER Abstract The recovery of well-preserved silicified immature exuviae allows the first description of the early ontogeny of the phacopid Nephranops incisus incisus from the lower Famennian of Thuringia (central Germany). Evidence is presented that both planktonic and benthic...
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Journal Article
Published: 01 May 2006
Journal of Paleontology (2006) 80 (3): 529–536.
...CATHERINE CRÔNIER; RICHARD A. FORTEY Abstract Exuviae comprising immature growth stages allow the tracing of morphological and morphogenetical features of the reduced-eyed phacopid species Plagiolaria poothaii Kobayashi and Hamada, 1968 , from the Early Devonian of Satun Province, southern...
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Journal Article
Published: 01 March 1999
Journal of Paleontology (1999) 73 (2): 240–255.
...C. Cronier; K. Bartzsch; D. Weyer; R. Feist Abstract Exceptionally rich and well-preserved silicified exuviae comprising numerous immature growth stages allow the tracing of detailed morphological and morphogenetical features of the reduced-eyed phacopid species Cryphops? ensae (Richter and Richter...
Journal Article
Published: 01 November 1996
Journal of Paleontology (1996) 70 (6): 1091–1094.
Series: GSA Special Papers
Published: 01 January 1940
DOI: 10.1130/SPE29-p1
... INTRODUCTION AND ACKNOWLEDGMENTS The phacopid trilobites form a widely diverse group which first appeared in North America during the early Chazyan (Lenoir limestone). From then until the close of the Hamilton, they form an element in almost all faunas, and an occasional straggler extends...
Series: GSA Special Papers
Published: 01 January 1940
DOI: 10.1130/SPE29
Journal Article
Published: 01 July 1935
Journal of Paleontology (1935) 9 (5): 402–420.
Image
<span class="search-highlight">Phacopid</span> trilobites from the Chefar el Ahmar Formation, Mid Devonian, lower...
Published: 12 December 2016
Figure 3. Phacopid trilobites from the Chefar el Ahmar Formation, Mid Devonian, lower Eifelian, Saoura Valley, Algeria. (a–c) Struveaspis maroccanica Alberti, 1970 , Ouarourout I section, S7, MU-G-Sr.Tr.S7/Ph003: cephalon in frontal, dorsal and lateral views; (d) S. maroccanica Alberti
Image
<span class="search-highlight">Phacopid</span> trilobites from the Chefar el Ahmar Formation, Mid Devonian, lower...
Published: 12 December 2016
Figure 5. Phacopid trilobites from the Chefar el Ahmar Formation, Mid Devonian, lower Eifelian, Saoura Valley, Algeria. (a–u) Chotecops hoseri Hawle & Corda, 1847 , Ouarourout II section, A4; (a–c) MU-G-Sr.Tr.A4/Ph072: cephalon in frontal, dorsal and lateral views; (d–f) MU-G-Sr.Tr.A4
Image
<span class="search-highlight">Phacopid</span> trilobites from the Chefar el Ahmar Formation, Mid Devonian, lower...
Published: 12 December 2016
Figure 6. Phacopid trilobites from the Chefar el Ahmar Formation, Mid Devonian, lower Eifelian, Saoura Valley, Algeria. (a–u) Phacops ouarouroutensis ouarouroutensis ssp. nov., Ouarourout I section; (a–c) S7, MU-G-Sr.Tr.S7/Ph032: cephalon in frontal, dorsal and lateral views; (d–g) S4, MU-G
Image
<span class="search-highlight">Phacopid</span> trilobites from the ‘Chefar el Ahmar’ Formation, Lower Devonian, u...
Published: 21 July 2015
Figure 3. Phacopid trilobites from the ‘Chefar el Ahmar’ Formation, Lower Devonian, upper Emsian, Saoura Valley, Algeria. (a–d) Barrandeops granulops (Chatterton et al . 2006 ), Erg el Djemel section, Di/UO/028 (Ed4): (a–c) cephalon in dorsal, frontal
Image
<span class="search-highlight">Phacopid</span> trilobites from the ‘Chefar el Ahmar’ Formation, Lower Devonian, u...
Published: 21 July 2015
Figure 4. Phacopid trilobites from the ‘Chefar el Ahmar’ Formation, Lower Devonian, upper Emsian, Saoura Valley, Algeria. (a–c) Barrandeops chattertoni sp. nov., Erg el Djemel section, holotype Di/UO/001 (Ed3n1): (a–b) cephalon in dorsal