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Sidneyia

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Figure  6 — <b>Sidneyia</b>  sp.  Walcott, 1911a , KUMIP 314033, Spence Shale Memb...
Published: 01 March 2008
Figure 6 — Sidneyia sp. Walcott, 1911a , KUMIP 314033, Spence Shale Member, Langston Formation, Miners Hollow, Wellsville Mountains, Box Elder County, Utah. Dorsal view of incomplete specimen; scale bar equals 1 cm
Journal Article
Journal: Paleobiology
Published: 01 January 2002
Paleobiology (2002) 28 (1): 155-171.
... in unambiguous fossil predators such as Sidneyia and Laggania ( Anomalocaris ) suggests they served a similar role in the Cambrian; by extension, their conspicuous occurrence in Leanchoilia suggests it was a predator or scavenger. Phosphatized midguts with a structure essentially indistinguishable from...
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Journal Article
Published: 01 March 2008
Journal of Paleontology (2008) 82 (2): 238-254.
...Figure 6 — Sidneyia sp. Walcott, 1911a , KUMIP 314033, Spence Shale Member, Langston Formation, Miners Hollow, Wellsville Mountains, Box Elder County, Utah. Dorsal view of incomplete specimen; scale bar equals 1 cm ...
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Journal Article
Published: 01 March 1999
Journal of Paleontology (1999) 73 (2): 263-287.
...Gregory D. Edgecombe; Lars Ramskold Abstract Cladistic relationships of Trilobita, Naraoiidae (five ingroup taxa), Helmetiida (five ingroup taxa), Xandarellida, and the Cambrian arachnates Retifacies, Sinoburius, Emeraldella, and Sidneyia are investigated based on 29 characters. Documentation...
Series: GSA Special Papers
Published: 01 January 1939
DOI: 10.1130/SPE19-p69
... to link Merostomata in general and the Aglaspida in particular with those Crustacea. With respect to such pseudoarachnids as Sidneyia, Emeraldella, Habelia, Molaria, Amiella, and Roddyia, comparisons would be irrelevant in view of the completely crustacean nature particularly of those that preserve...
Image
Burgess Shale–type (BST) fossils from the “thin” Stephen Formation, Stanley...
in > Geology
Published: 01 September 2010
]) and Hurdia victoria , ROM 59944. C: Sidneyia inexpectans , ROM 59945. D: Diagoniella cyathiformis , ROM 59946. E: Isolated appendages of Anomalocaris canadensis , ROM 59947. F: Great appendage arthropod A, part, frontal appendage indicated by arrow, ROM 59948 (see counterpart in Fig. DR4D). G: Mollisonid
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FIGURE 7 —Within habitat assemblages inferred from qualitative fossil evide...
in > PALAIOS
Published: 01 October 2006
56978, BA-370). Putative molts (C–E); (C) Juvenile of Alalcomenaeus (ROM 57711, BA-120); (D) Olenoides (ROM 56631, BA-465); (E) Sidneyia freshly molted (left) with its putative exuviae (right) (ROM 56945, BA-210): (F) Outstretched and articulated Olenoides with nonbiomineralized preservation
Image
Field photographs. (fig.  7 .1) Land-slipped block, astride Fossil Gully Fa...
Published: 24 December 2003
. Fossil locality F (Fig.  3 ) in this block contains Peytoia and Sidneyia . Rock hammer for scale. (fig.  7 .2) Disoriented angular carbonate megaclast embedded in the top of the Takakkaw Tongue sequence on the southern side of Gully 2. Person for scale. (fig.  7 .3) Ridge on the northern side
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Comparative anatomy between  Hongshiyanaspis yiliangensis  and other redlic...
Published: 05 April 2017
Same Same Body–limb junction Arthrodial membrane attached to sternite Unknown Unknown Same in Misszhouia , Sidneyia ; unknown in others Protopodite Podomere(s) Single, no differentiation Same Same Same; except for the prebasal endite in Sidneyia Gnathobase Clustered and non
Journal Article
Published: 31 July 2014
Geological Magazine (2015) 152 (2): 351-357.
... Guzhangian phosphatization Sidneyia Strabopida Etymology . From Notch Peak, one of the highest peaks in the House Range, which is located c . 10 km SW of the type locality. A. Weug donated the specimen described herein to UU. J. Ortega-Hernández and P. Van Roy...
FIGURES
Journal Article
Published: 01 May 2008
Journal of Paleontology (2008) 82 (3): 585-594.
... included trilobites, chelicerates, and many problematic fossil arthropod taxa known only from Burgess Shale-type soft-bodied faunas. Examples of such problematic taxa include the trilobite-like naraoiids, Sidneyia Walcott, 1911 , the “great appendage” taxa Alalcomenaeus Simmonetta, 1970...
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Journal Article
Published: 19 June 2015
Geological Magazine (2015) 152 (5): 942-948.
... D. L. 1981 . The arthropod Sidneyia inexpectans, Middle Cambrian, Burgess Shale, British Columbia . Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 295 , 619 –53. Bruton...
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Specimens examined in this study, including original and new taxonomic inte...
Published: 24 July 2017
Proboscocaris agnosta Hurdia Robison and Richards, 1981 ; Daley et al., 2013a Hurdia P-element KUMIP 204777-204780 Conway Morris and Robison, 1988 , fig. 26.1a, 26.1b, 26.2 Spence Shale Cambrian, Stage 5 Peytoia cf. nathorsti Conway Morris and Robison, 1988 Sidneyia -like taxon
Journal Article
Journal: Geology
Published: 01 September 2010
Geology (2010) 38 (9): 811-814.
... ]) and Hurdia victoria , ROM 59944. C: Sidneyia inexpectans , ROM 59945. D: Diagoniella cyathiformis , ROM 59946. E: Isolated appendages of Anomalocaris canadensis , ROM 59947. F: Great appendage arthropod A, part, frontal appendage indicated by arrow, ROM 59948 (see counterpart in Fig. DR4D). G: Mollisonid...
FIGURES
Journal Article
Published: 31 August 2016
Geological Magazine (2017) 154 (1): 181-186.
... Wellsville Mountains Sidneyia ambush predation Chelicerata Burgess Shale-type deposits (BSTs) provide an unrivalled view on early animal groups during the so-called ‘Cambrian explosion’. This event is best documented in particularly prolific sites, such as the lower Cambrian...
FIGURES
Journal Article
Published: 24 July 2017
Journal of Paleontology (2018) 92 (1): 99-113.
... Proboscocaris agnosta Hurdia Robison and Richards, 1981 ; Daley et al., 2013a Hurdia P-element KUMIP 204777-204780 Conway Morris and Robison, 1988 , fig. 26.1a, 26.1b, 26.2 Spence Shale Cambrian, Stage 5 Peytoia cf. nathorsti Conway Morris and Robison, 1988 Sidneyia -like taxon...
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Journal Article
Journal: PALAIOS
Published: 01 October 2006
PALAIOS (2006) 21 (5): 451-465.
... 56978, BA-370). Putative molts (C–E); (C) Juvenile of Alalcomenaeus (ROM 57711, BA-120); (D) Olenoides (ROM 56631, BA-465); (E) Sidneyia freshly molted (left) with its putative exuviae (right) (ROM 56945, BA-210): (F) Outstretched and articulated Olenoides with nonbiomineralized preservation...
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Journal Article
Journal: PALAIOS
Published: 01 October 2010
PALAIOS (2010) 25 (10): 636-641.
..., and interpreted this as evidence of mass consumption by predators such as anomalocaridids and priapulid worms. Bruton (1981) found hyolithids in the gut of Sidneyia inexpectans , a large Burgess Shale predator, while Briggs et al. (1994) also identified Ottoia and Sidneyia as hyolithid predators. Thus...
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Journal Article
Published: 01 March 2012
Journal of Paleontology (2012) 86 (2): 340-357.
... to this genus. As recognized by Zhang et al. (2004) , a similar condition is seen in the doublure of Sidneyia Walcott, 1911 from the Burgess Shale. Bruton (1981 , p. 628) noted that the posterior margin of the doublure in Sidneyia extended as far back as ‘the junction between the first and second thoracic...
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Journal Article
Journal: PALAIOS
Published: 01 December 2007
PALAIOS (2007) 22 (6): 691-694.
...., the priapulid Ottoia and arthropod Sidneyia ; see Bruton, 1981 , 2001 ). (2) One can determine whether prey organisms were dead (e.g., by presence of body fragments or molted carapaces) before being ingested by predators. (3) One can determine whether predators have access to living prey. For instance...
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