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![FIGURE 1—Location and stratigraphic origin of fossil material collected by the Royal Ontario Museum from the Burgess Shale. (A) Location of the Walcott Quarry, and relative position of the Cathedral Escarpment. (B–C) Schematic cross views of the Greater Phyllopod Bed (GBP) (B) in relation to the Cathedral Escarpment (modified from Fletcher and Collins, 1998); (C) in relation to the Phyllopod Bed. (D) Simplified stratigraphic section of the Greater Phyllopod Bed. Numbers on the right represent the names and respective thicknesses of BAs from fine-grained siliciclastic mudstone beds with nonbiomineralized preservation. 26 BAs with at least 300 specimens were analyzed in this study (represented in bold and in larger font). (E) Approximate areas of successive historical excavations in the Walcott Quarry]()
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![(A) Stratigraphic distribution of eocrinoids in the Burgess Shale. (B) Stratigraphic distribution of Lyracystis in the Greater Phyllopod Bed. Four talus specimens are not located in the section.]()
![Schematic representation of the stratigraphic relationships between the platform deposits of the Cathedral Limestone and Stephen Formations and the basinal deposits of the Burgess Shale Formation (data compiled from Fletcher & Collins 1998). The Burgess Shale Formation contains 10 members including the Walcott Quarry Shale Member, which comprises the Greater Phyllopod Bed and the interval studied herein, the Phyllopod Bed. WLM, Wash Limestone Member; GB, ‘Ginger Bed’; GML, ‘Great Marrella layer’; GEL, ‘Great Eldonia layer’.]()
![Distribution of Marrella specimens, by number and level, collected from the Phyllopod Bed by the Geological Survey of Canada (GSC) in 1966 and 1967 (shaded or between dashed lines), and by the Royal Ontario Museum (ROM) from the Greater Phyllopod Bed (bars) between 1994 and 2000. Another 12 specimens were found by the GSC and the ROM above the 135 cm level, with the highest occurring 335 cm from the base of the Great Marrella layer (GML). GEL, Great Eldonia layer.]()
![Elemental maps showing composition of chalcopyrite crystal clusters in carbonate veins at high angles to bedding. A, B) Walcott Quarry, Greater Phyllopod Bed -1.5 m (ROMIP 65326). C) Marble Canyon Quarry, 3.5 to 4.0 m below contact with the Eldon Fm. (ROMIP 65328).]()
![Diagram showing the the sagittal length of Marrella splendens at the five levels of the Greater Phyllopod Bed where this parameter was measured (N = 589). One-way ANOVA test was positive and gave a decrease in size with time.]()
![Topographic map of the Burgess Shale area near Field, British Columbia. The six numbers indicate localities where specimens of Marrella splendensWalcott, 1912 were collected by Royal Ontario Museum parties. 1, Greater Phyllopod Bed; 2, South face of Mt. Field; 3, North shoulder of Mt. Stephen; 4, S7 locality; 5, Mt. Stephen Trilobite Beds; 6, Odoray Mountain.]()
![Histograms of the sagittal length of Marrella splendens in five levels of the Greater Phyllopod Bed. GML, Great Marrella layer; negative values indicate layer’s height in centimetres below the floor of Walcott’s quarry; N, total number of specimens measured in the layer; Y axis, number of specimens; X axis, sagittal length in millimetres. t-test for skewness and kurtosis were negative.]()
![Aggregates of chalcopyrite crystals associated with fracture-filling calcium carbonate. A–C) Marble Canyon Quarry, soft-bodied fossil horizons 4.0–3.5 m below the contact with Eldon Fm.: A, white arrows indicate chalcopyrite along a fracture surface perpendicular to bedding. Black arrow indicates up direction perpendicular to bedding (ROMIP 65325); B, fracture surface nearly perpendicular to bedding, white arrows indicate bed junction in cross section (ROMIP 65327); C, fracture surface subperpendicular to bedding (ROMIP 65327). D, E) Fracture surfaces subperpendicular to bedding from Walcott Quarry, Greater Phyllopod Bed -4.5 m (D), -2.1 m (E), showing discrete aggregates of chalcopyrite crystals (ROMIP 65326).]()
![Figure2—Stratigraphic origin and number of specimens of Tuzoia collected by the Royal Ontario Museum in the Burgess Shale and Stephen Formations. Emerald Oncolite Member: UEZ (Upper Ehmaniella Zone = upper Collins Quarry); EZ (Ehmaniella Zone = lower Collins Quarry). Raymond Quarry Shale Member: TZ = Tuzoia Zone; PZ = Leanchoilia persephone Zone; RQ = Raymond Quarry; ESB = East Stephen B (possible stratigraphic equivalent to the Raymond Quarry on Mt. Stephen). Walcott Quarry Shale Member: GPB = Greater Phyllopod Bed; ESC = East Stephen C (see details in text). Campsite Cliff Shale Member: S7 = Stephen 7 (locality 7 on Mt. Stephen). Kicking Horse Shale Member: WS = West Stephen. See Collins and Stewart, 1991; Fletcher and Collins, 1998, 2004 for additional information on the stratigraphy of these different localities]()
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Journal Article
TAPHONOMY OF THE GREATER PHYLLOPOD BED COMMUNITY, BURGESS SHALE Available to Purchase
Journal: PALAIOS
Publisher: SEPM Society for Sedimentary Geology
Published: 01 October 2006
PALAIOS (2006) 21 (5): 451–465.
..., variation in fossil preservation was analyzed through a vertical succession of 26 bed assemblages, each representing a single obrution event, within the 7-m-thick Greater Phyllopod Bed of the Walcott Quarry. More than 50,000 specimens belonging to 158 genera—mostly benthic, monospecific...
FIGURES
Image
FIGURE 1 —Location and stratigraphic origin of fossil material collected by... Available to Purchase
Published: 01 October 2006
FIGURE 1 —Location and stratigraphic origin of fossil material collected by the Royal Ontario Museum from the Burgess Shale. (A) Location of the Walcott Quarry, and relative position of the Cathedral Escarpment. (B–C) Schematic cross views of the Greater Phyllopod Bed (GBP) (B) in relation
Journal Article
Burgess shale−type biotas were not entirely burrowed away Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 01 March 2012
Geology (2012) 40 (3): 283–286.
..., including the most richly fossiliferous portions of the Chengjiang (China) deposit and the Greater Phyllopod Bed of the Burgess Shale (Canada). Therefore, increasing bioturbation cannot account for the apparent loss of this pathway from the fossil record, and requires that other circumstances, including...
FIGURES
Image
(A) Stratigraphic distribution of eocrinoids in the Burgess Shale. (B) Stra... Available to Purchase
in New eocrinoids from the Burgess Shale, southern British Columbia, Canada, and the Spence Shale, northern Utah, USA
> Canadian Journal of Earth Sciences
Published: 04 May 2006
Fig. 2. (A) Stratigraphic distribution of eocrinoids in the Burgess Shale. (B) Stratigraphic distribution of Lyracystis in the Greater Phyllopod Bed. Four talus specimens are not located in the section.
Image
Schematic representation of the stratigraphic relationships between the pla... Available to Purchase
in Sedimentation of the Phyllopod Bed within the Cambrian Burgess Shale Formation of British Columbia
> Journal of the Geological Society
Published: 01 January 2008
members including the Walcott Quarry Shale Member, which comprises the Greater Phyllopod Bed and the interval studied herein, the Phyllopod Bed. WLM, Wash Limestone Member; GB, ‘Ginger Bed’; GML, ‘Great Marrella layer’; GEL, ‘Great Eldonia layer’.
Image
Distribution of Marrella specimens, by number and level, collected from t... Available to Purchase
in A new study of Marrella splendens (Arthropoda, Marrellomorpha) from the Middle Cambrian Burgess Shale, British Columbia, Canada
> Canadian Journal of Earth Sciences
Published: 07 July 2006
Fig. 3. Distribution of Marrella specimens, by number and level, collected from the Phyllopod Bed by the Geological Survey of Canada (GSC) in 1966 and 1967 (shaded or between dashed lines), and by the Royal Ontario Museum (ROM) from the Greater Phyllopod Bed (bars) between 1994 and 2000
Image
Elemental maps showing composition of chalcopyrite crystal clusters in carb... Available to Purchase
in THE LIMITS OF BURGESS SHALE-TYPE PRESERVATION: ASSESSING THE EVIDENCE FOR PRESERVATION OF THE BLOOD PROTEIN HEMOCYANIN IN THE BURGESS SHALE
> PALAIOS
Published: 13 June 2019
Fig. 4.— Elemental maps showing composition of chalcopyrite crystal clusters in carbonate veins at high angles to bedding. A , B ) Walcott Quarry, Greater Phyllopod Bed -1.5 m (ROMIP 65326). C ) Marble Canyon Quarry, 3.5 to 4.0 m below contact with the Eldon Fm. (ROMIP 65328).
Image
Diagram showing the the sagittal length of Marrella splendens at the five... Available to Purchase
in A new study of Marrella splendens (Arthropoda, Marrellomorpha) from the Middle Cambrian Burgess Shale, British Columbia, Canada
> Canadian Journal of Earth Sciences
Published: 07 July 2006
Fig. 18. Diagram showing the the sagittal length of Marrella splendens at the five levels of the Greater Phyllopod Bed where this parameter was measured ( N = 589). One-way ANOVA test was positive and gave a decrease in size with time.
Image
Topographic map of the Burgess Shale area near Field, British Columbia. The... Available to Purchase
in A new study of Marrella splendens (Arthropoda, Marrellomorpha) from the Middle Cambrian Burgess Shale, British Columbia, Canada
> Canadian Journal of Earth Sciences
Published: 07 July 2006
Fig. 1. Topographic map of the Burgess Shale area near Field, British Columbia. The six numbers indicate localities where specimens of Marrella splendens Walcott, 1912 were collected by Royal Ontario Museum parties. 1, Greater Phyllopod Bed; 2, South face of Mt. Field; 3, North shoulder of Mt
Image
Histograms of the sagittal length of Marrella splendens in five levels of... Available to Purchase
in A new study of Marrella splendens (Arthropoda, Marrellomorpha) from the Middle Cambrian Burgess Shale, British Columbia, Canada
> Canadian Journal of Earth Sciences
Published: 07 July 2006
Fig. 17. Histograms of the sagittal length of Marrella splendens in five levels of the Greater Phyllopod Bed. GML, Great Marrella layer; negative values indicate layer’s height in centimetres below the floor of Walcott’s quarry; N , total number of specimens measured in the layer; Y axis
Image
Aggregates of chalcopyrite crystals associated with fracture-filling calciu... Available to Purchase
in THE LIMITS OF BURGESS SHALE-TYPE PRESERVATION: ASSESSING THE EVIDENCE FOR PRESERVATION OF THE BLOOD PROTEIN HEMOCYANIN IN THE BURGESS SHALE
> PALAIOS
Published: 13 June 2019
to bedding from Walcott Quarry, Greater Phyllopod Bed -4.5 m (D), -2.1 m (E), showing discrete aggregates of chalcopyrite crystals (ROMIP 65326).
Image
Figure 2 —Stratigraphic origin and number of specimens of Tuzoia collect... Available to Purchase
in TUZOIA : MORPHOLOGY AND LIFESTYLE OF A LARGE BIVALVED ARTHROPOD OF THE CAMBRIAN SEAS
> Journal of Paleontology
Published: 01 May 2007
Member: TZ = Tuzoia Zone; PZ = Leanchoilia persephone Zone; RQ = Raymond Quarry; ESB = East Stephen B (possible stratigraphic equivalent to the Raymond Quarry on Mt. Stephen). Walcott Quarry Shale Member: GPB = Greater Phyllopod Bed; ESC = East Stephen C (see details in text). Campsite Cliff Shale
Journal Article
A new study of Marrella splendens (Arthropoda, Marrellomorpha) from the Middle Cambrian Burgess Shale, British Columbia, Canada Available to Purchase
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 07 July 2006
Canadian Journal of Earth Sciences (2006) 43 (6): 721–742.
...Fig. 3. Distribution of Marrella specimens, by number and level, collected from the Phyllopod Bed by the Geological Survey of Canada (GSC) in 1966 and 1967 (shaded or between dashed lines), and by the Royal Ontario Museum (ROM) from the Greater Phyllopod Bed (bars) between 1994 and 2000...
FIGURES
Journal Article
Sedimentation of the Phyllopod Bed within the Cambrian Burgess Shale Formation of British Columbia Available to Purchase
Journal: Journal of the Geological Society
Publisher: Geological Society of London
Published: 01 January 2008
Journal of the Geological Society (2008) 165 (1): 307–318.
... members including the Walcott Quarry Shale Member, which comprises the Greater Phyllopod Bed and the interval studied herein, the Phyllopod Bed. WLM, Wash Limestone Member; GB, ‘Ginger Bed’; GML, ‘Great Marrella layer’; GEL, ‘Great Eldonia layer’. ...
FIGURES
Journal Article
TAPHONOMY AND DEPOSITIONAL SETTING OF THE BURGESS SHALE TULIP BEDS, MOUNT STEPHEN, BRITISH COLUMBIA Available to Purchase
Journal: PALAIOS
Publisher: SEPM Society for Sedimentary Geology
Published: 01 June 2014
PALAIOS (2014) 29 (6): 309–324.
... cm in thickness throughout the Greater Phyllopod Bed ( Gabbott et al. 2008 ). There are no significant breaks in sedimentation observed within the Greater Phyllopod Bed (which spans most of the Walcott Quarry) and it has been suggested that sedimentation was the result of pulsing dense slurrylike...
FIGURES
Journal Article
A reexamination of Yuknessia from the Cambrian of British Columbia and Utah Available to Purchase
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 January 2015
Journal of Paleontology (2015) 89 (1): 82–95.
... of the remainder of the USNM material and
all ROM material previously attributed to Y. simplex suggests a Dalyia affinity as well. Thus, no definitive examples of Y.
simplex are known from the Walcott Quarry and it should, therefore, be excluded
from the Greater Phyllopod Bed...
FIGURES
Journal Article
The Burgess Shale paleocommunity with new insights from Marble Canyon, British Columbia Available to Purchase
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 February 2020
Paleobiology (2020) 46 (1): 58–81.
... specimens, divided stratigraphically into 26 SIs with more than 300 collected specimens each. The Raymond Quarry (RQ) is located approximately 20 m above the base of the Greater Phyllopod Bed of the Walcott Quarry (Raymond Quarry Member; Fletcher and Collins 1998 , 2003 ). A total of 9539 observations...
FIGURES
Journal Article
TUZOIA : MORPHOLOGY AND LIFESTYLE OF A LARGE BIVALVED ARTHROPOD OF THE CAMBRIAN SEAS Available to Purchase
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 May 2007
Journal of Paleontology (2007) 81 (3): 445–471.
... Member: TZ = Tuzoia Zone; PZ = Leanchoilia persephone Zone; RQ = Raymond Quarry; ESB = East Stephen B (possible stratigraphic equivalent to the Raymond Quarry on Mt. Stephen). Walcott Quarry Shale Member: GPB = Greater Phyllopod Bed; ESC = East Stephen C (see details in text). Campsite Cliff Shale...
FIGURES
Journal Article
A mineralogical signature for Burgess Shale–type fossilization Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 15 February 2018
Geology (2018) 46 (4): 347–350.
...): A new measure of early Paleozoic paleobiology : Geology , v. 40 , p. 71 – 74 , https://doi.org/10.1130/G32580.1 . Caron , J.-B. , and Jackson , D.A. , 2006 , Taphonomy of the greater Phyllopod Bed community, Burgess Shale : Palaios , v. 21 , p. 451 – 465 , https://doi.org/10.2110...
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Journal Article
A new Burgess Shale–type assemblage from the “thin” Stephen Formation of the southern Canadian Rockies Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 01 September 2010
Geology (2010) 38 (9): 811–814.
... . Caron J.-B. Jackson D.A. , 2008 , Paleoecology of the Greater Phyllopod Bed community, Burgess Shale : Palaeogeography, Palaeoclimatology, Palaeoecology , v. 258 , p. 222 – 256 , doi: 10.1016/j.palaeo.2007.05.023 . Caron J.-B. Conway Morris S. Shu D. , 2010 , Tentaculate...
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