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Pseudagnostus

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Journal Article
Published: 13 April 2010
Geological Magazine (2010) 147 (5): 789-796.
...FREDRIK TERFELT; PER AHLBERG Abstract Pseudagnostus rugosus Ergaliev, 1980 is described from the Furongian Ctenopyge tumida Zone at Gislövshammar, Scania, southern Sweden. This is the first record of this distinctive agnostoid in Scandinavia. The species is known previously from Malyi Karatau...
Journal Article
Published: 02 April 2012
Geological Magazine (2012) 149 (6): 1001-1012.
... lunulosus and Agnostus ( Homagnostus ) obesus first appear at the base of the G . reticulatus Zone, allowing a precise correlation of the base of the Paibian Stage into Scandinavia. Tomagnostella orientalis and Pseudagnostus cyclopyge appear near the base of the Parabolina brevispina Zone, suggesting...
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<b>Pseudagnostus</b> cf. P. idalis  Öpik, 1967 , Shallow Bay Formation, western Ne...
Published: 01 March 2012
F igure 3 Pseudagnostus cf. P. idalis Öpik, 1967 , Shallow Bay Formation, western Newfoundland. 1–3 , cephalon, GSC 134514, dorsal, lateral and anterior views; 4 , 5 , cephalon, GSC 134515, dorsal and anterior views; 6–8 , cephalon, GSC 134516, anterior, lateral and dorsal views; 9–11
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<b>Pseudagnostus</b> cf. P. idalis  Öpik, 1967 , Shallow Bay Formation, western Ne...
Published: 01 March 2012
F igure 4 Pseudagnostus cf. P. idalis Öpik, 1967 , Shallow Bay Formation, western Newfoundland. 1, 2 , pygidium, GSC 134518, dorsal and posterior views; 3–5 , pygidium, dorsal, posterior and lateral views; 6, 7 , pygidium, GSC 134519, dorsal and posterior views; 8 , pygidium, GSC 134520
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<b>Pseudagnostus</b> cf. P. communis ( Hall and Whitfield, 1877 ), Shallow Bay For...
Published: 01 March 2012
F igure 6 Pseudagnostus cf. P. communis ( Hall and Whitfield, 1877 ), Shallow Bay Formation, western Newfoundland. 1–3 , cephalon, GSC 134524, dorsal, lateral and anterior views; 4 , cephalon, GSC 134525, dorsal view; 5 , cephalon, GSC 134526, dorsal view; 6 , cephalon, GSC 135368, dorsal
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<b>Pseudagnostus</b> cf. P. communis ( Hall and Whitfield, 1877 ), Shallow Bay For...
Published: 01 March 2012
F igure 7 Pseudagnostus cf. P. communis ( Hall and Whitfield, 1877 ), Shallow Bay Formation, western Newfoundland. 1–3 , cephalon, GSC 134532, dorsal, anterior and lateral views; 4–6 , cephalon, GSC 134533, anterior, dorsal and lateral views; 7–9 , cephalon, GSC 134534, anterior, lateral
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<b>Pseudagnostus</b> cf. P. communis ( Hall and Whitfield, 1877 ), Shallow Bay For...
Published: 01 March 2012
F igure 8 Pseudagnostus cf. P. communis ( Hall and Whitfield, 1877 ), Shallow Bay Formation, western Newfoundland. 1 , pygidium, GSC 134535, dorsal view, ×12; 2, pygidium, GSC 134536, dorsal view, ×12; 3 , pygidium, GSC 134537, dorsal view, ×18; 4 , pygidium, GSC 134538, dorsal view, ×12
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Agnostoids from Newfoundland and Nevada.  1–4 , <b>Pseudagnostus</b> cf. P. ampull...
Published: 01 March 2012
F igure 9 Agnostoids from Newfoundland and Nevada. 1–4 , Pseudagnostus cf. P. ampullatus Öpik, 1967 , Shallow Bay Formation, Newfoundland: 1–3, pygidium, GSC 134544, dorsal, lateral and posterior views; 4 , pygidium, GSC 134545, dorsal view; 5–7 , Pseudagnostus prolongus ( Hall
Journal Article
Published: 01 March 2012
Journal of Paleontology (2012) 86 (2): 201-237.
...F igure 3 Pseudagnostus cf. P. idalis Öpik, 1967 , Shallow Bay Formation, western Newfoundland. 1–3 , cephalon, GSC 134514, dorsal, lateral and anterior views; 4 , 5 , cephalon, GSC 134515, dorsal and anterior views; 6–8 , cephalon, GSC 134516, anterior, lateral and dorsal views; 9–11...
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Journal Article
Published: 01 July 1984
Geological Magazine (1984) 121 (4): 291-299.
... dated by abundant trilobites including species of Homagnostus, Pseudagnostus, Kormagnostella, Erixanium and Onchopeltis.--Modified journal abstract. GeoRef, Copyright 2004, American Geological Institute. 1984 ...
Journal Article
Published: 01 May 1984
Journal of Paleontology (1984) 58 (3): 834-842.
...George Theokritoff Abstract A limestone stratum, within the undifferentiated West Castleton-Hatch Hill formations of the Taconic sequence in Northwest Dutchess County, New York, has yielded a small collection of agnostid and ptychoparioid trilobites. The agnostids are Pseudagnostus sp...
..., two form species of algal limestone, and problematica . New taxa are the trilobites Comanchia lippa n.sp., Geragnostus ? insolitus n.sp., Monocheilus demissus n.sp., Pinctus ? artus n.sp., P. ? pullus n.sp., Pseudagnostus sentosus n.sp., Rasettia snowyensis n.sp., Saratogia carita...
Journal Article
Published: 01 May 1959
Journal of Paleontology (1959) 33 (3): 404-427.
... at or near the top of the Ptychaspis granulosa teilzone. The appearance of Taenicephalina, Bellaspis, Lunkella, a member of the Dokimocephalidae, and 2 species of Pseudagnostus occurring also in eastern Nevada shows the first interminglings of far western or extracratonic faunal elements...
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Bivariate plot showing reduced major axis regression of pygidial length (ex...
Published: 01 March 2012
F igure 5 Bivariate plot showing reduced major axis regression of pygidial length (excluding articulating half-ring) and maximum pygidial width for species of Pseudagnostus. Pseudagnostus cf. P. idalis: pygidial length = 0.886, pygidial width = 0.137, standard error of slope = 0.034, r 2
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Figure  3 — Elvinia  Biozone trilobites from the Emigrant Formation from US...
Published: 01 July 2007
Figure 3 — Elvinia Biozone trilobites from the Emigrant Formation from USNM locality 42,247. 1, Wujiajiania sutherlandi Chatterton and Ludvigsen, 1998 , USNM 5292329, ×4.6; 2, Labiostria westropi Chatterton and Ludvigsen, 1998 , USNM 5292330, ×5.2; and 3, Pseudagnostus josepha ( Hall
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Stratigraphic column and geochemical data for the Kyrshabakty section (sout...
Published: 20 May 2015
ivshini ; P. ultimus – Peronopsis ultimus ; P. vastulus – Pseudagnostus vastulus ; P. punctuosus – Ptychagnostus punctuosus .
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Olenid trilobites and agnostoid arthropods from the Chelsey Drive Group, Ca...
Published: 12 March 2015
and anterior views, ×15. (d, e) Pygidium, NBM 17884, posterior and dorsal views, ×13. (f–h) Pseudagnostus cf. rugosus Ergaliev, 1980 , collection MaS-6.15; pygidium, NBM 17885, dorsal, lateral and posterior views, ×13. (i–k) Sphaeophthalmus cf. alatus
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Figure  1 —Stratigraphic section of lower part of section N of the Rabbitke...
Published: 01 May 2002
and Robison, 2000 ; placed “ Pseudagnostus communis ” in synonymy with P. josepha — Peng and Robison, 2000 ; placed Acmarhachis acuta in synonymy with A. typicalis — Peng and Robison, 2000 ; placed Peratagnostus nobilis in synonymy with P. obsoletus — Peng and Robison, 2000 ; assigned Parabolina
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Figure  14 —Lower slope trilobite biofacies, LATE CAMBRIAN, Sakian,  Diplag...
Published: 01 November 2000
, CNIGR 8907/44, ×2 (= Cedarellus felix Lazarenko, 1966 , pl. 3, fig. 3); 8, Pseudagnostus communis (Whitfield), cephalon and incomplete pygidium, SNIIGGiMS 373/26, ×5; 9, 13, Peratagnostus orientalis (Lazarenko), ×10; 9, cephalon, SNIIGGiMS 373/27; 13, pygidium, SNIIGGiMS 373/28; 10
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Diagnostic Late Cambrian fossils from collections in Silver Island Mountain...
Published: 01 January 1968
.— Menomonia sp., × 4, associated with algal? structure, S987-CO (USNM 158030). PHOTO 3.— Pseudagnostus sp., × 4, S986-CO (USNM 158031). PHOTO 4.— Billingsella sp., × 3, S984-CO (USNM 158032). PHOTOS 5, 6.— Kormagnostus sp., × 10, 7, 5987-CO (USNM 158033). PHOTO 7 .— Clavagnostus sp., × 10, 5987-CO