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Peachella

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Journal Article
Published: 01 March 2009
Journal of Paleontology (2009) 83 (2): 197–218.
...Mark Webster Abstract Although used in biostratigraphy and in studies of early Cambrian trilobite evolution, the olenelloid genus Peachella has received little research attention. The ontogenetic and evolutionary origins of its derived features—an effaced cephalon and grossly inflated genal spines...
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Journal Article
Published: 01 September 1976
Journal of Paleontology (1976) 50 (5): 994.
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Figure  2 —Morphologically mature cephala of  <b>Peachella</b> iddingsi .  1, 2,  ...
Published: 01 March 2009
Figure 2 —Morphologically mature cephala of Peachella iddingsi . 1, 2, holotype cephalon, dorsal (×4) and left lateral (×3) views, USNM 15407a; 3–5, cephalon in dorsal (×4), left lateral (×3) and oblique dorsoanterolateral (×3) views, USNM 177241 (latex replica); 6, cephalon, dorsal view
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Figure  3 —Morphologically mature cephala of  <b>Peachella</b> iddingsi .  1–4,  c...
Published: 01 March 2009
Figure 3 —Morphologically mature cephala of Peachella iddingsi . 1–4, cephalon in dorsal, anterior, left lateral, and oblique dorsoanterolateral views, FMNH PE58070, ×4; 5, cephalon, dorsal view, FMNH PE58078, ×4; 6, Right side of incomplete cephalon, dorsal view, specimen in lot LACMIP
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Figure  4 —Morphologically mature specimens of  <b>Peachella</b> iddingsi .  1–3, ...
Published: 01 March 2009
Figure 4 —Morphologically mature specimens of Peachella iddingsi . 1–3, articulated specimens showing details of prothorax and opisthothorax. 1, 2, mostly exfoliated part ( 1 ) and latex cast of counterpart ( 2 ) of LACMIP 11621, ×4. The photograph published by Palmer and Repina (1993 , fig
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Figure  5 — 1–6,  cephala of  <b>Peachella</b> iddingsi  in phases 3 through 5 of ...
Published: 01 March 2009
Figure 5 — 1–6, cephala of Peachella iddingsi in phases 3 through 5 of ontogenetic development. 1, partially exfoliated and incomplete cephalon in phase 3 of development, dorsal view, FMNH PE58071, ×12. 2, partially exfoliated and incomplete cephalon in early phase 4 of development, dorsal
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Figure  6 —Silicified cephala of  <b>Peachella</b> iddingsi  in early phase 4 of d...
Published: 01 March 2009
Figure 6 —Silicified cephala of Peachella iddingsi in early phase 4 of development. 1–5, incomplete and coarsely silificied cephalon, dorsal, ventral, anterior, right lateral, and oblique dorsoanterolateral views, USNM 306569, ×7; 6–9, fractured cephalon, dorsal, anterodorsal, right lateral
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Figure  8 —Morphometric data for  <b>Peachella</b> iddingsi  (squares),  P. brevis...
Published: 01 March 2009
Figure 8 —Morphometric data for Peachella iddingsi (squares), P. brevispina (circles), and Eopeachella angustispina (triangles), plotted against sagittal glabellar length (mm). 1, strength of the adgenal angle, measured as the angle of anterior deflection of the distal portion
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Figure  7 —Morphometric data for  <b>Peachella</b> iddingsi  (squares),  P. brevis...
Published: 01 March 2009
Figure 7 —Morphometric data for Peachella iddingsi (squares), P. brevispina (circles), and Eopeachella angustispina (triangles), plotted against sagittal glabellar length (mm). 1, angle of divergence of ocular lobes from exsagittal axis, measured as angle between exsagittal axis and line
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Figure  9 —Morphologically mature cephala of  <b>Peachella</b> brevispina .  1,  h...
Published: 01 March 2009
Figure 9 —Morphologically mature cephala of Peachella brevispina . 1, holotype cephalon, dorsal view, USNM 177236 (latex replica), ×4; 2–4, mostly exfoliated cephalon in dorsal, anterior, and left lateral views, FMNH PE58085, ×3; 5, large, compacted cephalon preserved in siltstone, dorsal
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Figure  10 —Morphologically mature specimens of  <b>Peachella</b> brevispina .  1–...
Published: 01 March 2009
Figure 10 —Morphologically mature specimens of Peachella brevispina . 1–3, articulated specimens showing details of prothorax and opisthothorax; 1, tectonized specimen, dorsal view, SDNHM 24548 (latex of counterpart), ×4; 2, tectonized specimen, dorsal view, NSB 3931a, ×2; 3, mildly
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Figure  11 —Specimens of  <b>Peachella</b> brevispina  in phases 4 and 5 of ontoge...
Published: 01 March 2009
Figure 11 —Specimens of Peachella brevispina in phases 4 and 5 of ontogenetic development of the cephalon. 1, articulated specimen in phase 4 of cephalic development, dorsal view, FMNH PE58108, ×10; 2, articulated specimen in phase 4 of cephalic development (NSB 3932a, right), and another
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Figure  1 —Map of localities in the southwestern United States from which  ...
Published: 01 March 2009
Figure 1 —Map of localities in the southwestern United States from which Peachella and Eopeachella specimens have been recovered. Black lines with triangles mark the eastern limit of thrusting (Antler Orogenic Belt in the north, Sevier Orogenic Belt in the southeast; overthrust block
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pallas telesto  Geyer— 1 ;   33 .  Andalusiana cornuta  Sdzuy— 1 ;   34 .  ...
Published: 01 July 2002
; 113 . B. sphaerulosus (Fritz)— 4 ; 114 . B. hermani (Kindle and Tasch)— 5 ; 115 . B. groenlandicus (Poulsen)— 5 ; 116 . Olenelloides armatus Peach— 5 ; 117 . Biceratops nevadensis Pack and Gayle— 3 ; 118 . Peachella brevispina Palmer in Palmer and Halley— 3 ; 119 . P
Journal Article
Published: 13 April 2020
Geological Magazine (2020) 157 (12): 1971–1982.
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Journal Article
Journal: Paleobiology
Published: 01 January 2000
Paleobiology (2000) 26 (2): 258–270.
... in the distribution of axial nodes in olenellids. Several species have no axial nodes on the thoracic segments (e.g., in Fig. 4 , Biceratops nevadensis Pack and Gayle, Peachella iddingsi [Walcott], Bristolia bristolensis [Resser]). Some species have nodes on all thoracic segments (e.g., in Fig. 3 , Mummaspis...
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Series: Memoir, Memoir
Published: 01 January 2012
DOI: 10.1306/13331514M983512
EISBN: 9781629810201
... Basin were not studied in enough detail to facilitate regional correlations. The upper part of the Olenellus Zone is characterized by Olenellus, Paedeumias , and Bristolia , along with Mesonacis, Bolbolenellus, Arcuolenellus, Peachella, Nephro-lenellus, Paranephrolenellus , and Biceratops...
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Journal Article
Published: 01 May 2013
Journal of Paleontology (2013) 87 (3): 472–483.
... Cambrian trilobites Peachella Walcott, 1910 and Eopeachella New Genus (Olenellodea) . Journal of Paleontology , 83 : 197 – 218 . Zhang W. T. Jell P...
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Journal Article
Published: 31 October 2011
Canadian Journal of Earth Sciences (2011) 48 (11): 1471–1482.
... Webster M. 2007 b . Paranephrolenellus , a new genus of Early Cambrian olenelloid trilobites. Memoirs of the Association of Australasian Palaeontologists , 34 : 101 – 129 . Webster M. 2009 . Ontogeny, systematics, and evolution of the effaced Early Cambrian trilobites Peachella...
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Journal Article
Published: 01 January 2020
Journal of Paleontology (2020) 94 (1): 70–98.
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