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Mercian Assemblage

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<b>Mercian</b> <b>Assemblage</b>, bed B, North Quarry, Charnwood Forest (UK). All specime...
in > Geology
Published: 01 July 2011
Figure 2. Mercian Assemblage, bed B, North Quarry, Charnwood Forest (UK). All specimens are casts, except B (mold), and are housed at British Geological Survey, Keyworth. A: Immature Charnia masoni complete with holdfast (GSM105979). B: Charniodiscus sp. (GSM106069). C: Giant
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SUMMARY ATTRIBUTES OF KEY FOSSIL SURFACES, <b>MERCIAN</b> <b>ASSEMBLAGE</b>
in > Geology
Published: 01 July 2011
TABLE 1. SUMMARY ATTRIBUTES OF KEY FOSSIL SURFACES, MERCIAN ASSEMBLAGE
Journal Article
Journal: Geology
Published: 01 July 2011
Geology (2011) 39 (7): 655–658.
...Figure 2. Mercian Assemblage, bed B, North Quarry, Charnwood Forest (UK). All specimens are casts, except B (mold), and are housed at British Geological Survey, Keyworth. A: Immature Charnia masoni complete with holdfast (GSM105979). B: Charniodiscus sp. (GSM106069). C: Giant...
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Journal Article
Journal: PALAIOS
Published: 01 October 2006
PALAIOS (2006) 21 (5): 466–479.
...RANDALL B. IRMIS; DAVID K. ELLIOTT Abstract The taphonomy of assemblages of disarticulated remains of marine vertebrates is not well studied. Examination of a Middle Pennsylvanian chondrichthyan assemblage from Kohl's Ranch, Naco Formation, central Arizona, contributes to knowledge...
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Journal Article
Journal: Paleobiology
Published: 25 May 2016
Paleobiology (2016) 42 (4): 574–594.
..., previous workers have tested for underlying factors that may control the occurrence of Ediacaran macrofossils in space and time. Three taxonomically distinct “assemblages,” termed the Avalon, White Sea, and Nama, were identified and informally incorporated into Ediacaran biostratigraphy. After ~15 years...
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Journal Article
Published: 01 July 2012
Journal of the Geological Society (2012) 169 (4): 395–403.
...Alexander G. Liu; Duncan McIlroy; Jack J. Matthews; Martin D. Brasier Abstract A new assemblage of frondose and filamentous Ediacaran macrofossils is reported from the upper Drook Formation of Pigeon Cove, Newfoundland. The frondose forms, all less than 3 cm in length, are considered to represent...
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Journal Article
Published: 01 July 2008
Journal of Paleontology (2008) 82 (4): 763–777.
... of possible age cohorts comparable to those observed in modern macrobenthic organisms. 21 01 2008 The Paleontological Society 2008 The ediacara biota, a distinctive worldwide Late Neoproterozoic (575–542 Ma) fossil assemblage, consisting of millimeter- to meter-scale impressions of soft...
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Journal Article
Published: 21 May 2007
Canadian Journal of Earth Sciences (2007) 44 (3): 367–387.
...James G. Gehling; Guy M. Narbonne Abstract The Mistaken Point assemblage of the Ediacara fossils is dominated by rangeomorphs with homologous fractal branching elements. The most distinctive are the fusiform fossils, herein named Fractofusus misrai n.gen., and n.sp., and Fractofusus andersoni n.gen...
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Journal Article
Journal: Palynology
Published: 01 November 2016
Palynology (2016) 40 (3): 379–409.
...Clinton Foster; Reed Wicander Abstract A well-preserved and moderately diverse organic-walled microphytoplankton assemblage was recovered from the subsurface Lower Ordovician Nambeet Formation, Canning Basin, Western Australia. The microphytoplankton assemblage consists of prasinophyte phycomata...
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XRD patterns of Permo-Triassic clay mineral <b>assemblages</b> (&amp;lt;2 μm) of detri...
Published: 01 March 2006
, Staithes No. 20 Borehole, NE Yorkshire, (c) Mica-chlorite assemblage from Sample De200, Sidmouth Mudstone Fm., south Devon ( Jeans, 1978 , his fig. 31). (d) Mica-chlorite assemblage displaying the open mica that characterizes the uppermost part of the Mercian Mudstone Group, sample De252, Blue Anchor
Journal Article
Journal: Clay Minerals
Published: 01 March 2006
Clay Minerals (2006) 41 (1): 187–307.
... and Kimmeridge Clay. These are typically characterized by a detrital clay mineral assemblage of mica, kaolin and poorly defined mixed-layer smectite-mica-vermiculite minerals with traces of chlorite. Detailed evidence suggests that this assemblage is derived ultimately from weathered Palaeozoic sediments...
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Journal Article
Journal: Clay Minerals
Published: 01 March 2006
Clay Minerals (2006) 41 (1): 309–354.
..., Staithes No. 20 Borehole, NE Yorkshire, (c) Mica-chlorite assemblage from Sample De200, Sidmouth Mudstone Fm., south Devon ( Jeans, 1978 , his fig. 31). (d) Mica-chlorite assemblage displaying the open mica that characterizes the uppermost part of the Mercian Mudstone Group, sample De252, Blue Anchor...
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Journal Article
Journal: Paleobiology
Published: 01 February 2010
Paleobiology (2010) 36 (1): 80–112.
... separate pathways to accumulation based on facies distinctions, we present a model that links the accumulation of bioclasts in the two facies. We propose that vertebrate material initially accumulates to fossiliferous levels in ponds/lakes and is later reworked and redeposited as channel-hosted assemblages...
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Journal Article
Published: 10 November 2015
Journal of the Geological Society (2016) 173 (2): 306–319.
... to be contemporary. The oldest pollen assemblage is from the more southern Bees Nest Pit, which represents a subtropical conifer-dominated forest of late Serravallian age ( c . 12 Ma). A younger assemblage was observed from the more northern Kenslow Top Pit; this indicates that a subtropical mixed forest was present...
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Journal Article
Published: 01 March 2014
Journal of Paleontology (2014) 88 (2): 207–223.
...Guy M. Narbonne; Marc Laflamme; Peter W. Trusler; Robert W. Dalrymple; Carolyn Greentree A bstract Impressions of soft-bodied Ediacaran megafossils are common in deep-water slope deposits of the June beds at Sekwi Brook in the Mackenzie Mountains of NW Canada. Two taphonomic assemblages can...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2015
GSA Bulletin (2015) 127 (1-2): 250–265.
..., and, consequently, distinction of the Lubcloud assemblage may be taphonomic. The Mercian assemblage encompasses fossiliferous horizons within the Beacon Hill and Bradgate Formations ( Fig. 2 ). In most cases, these are dominated by rangeomorphs, a high-order clade of uncertain affinity that is characterized...
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Journal Article
Published: 25 July 2017
Proceedings of the Yorkshire Geological Society (2017) 61 (4): 239–257.
... seven facies with diverse skeletal assemblages, representing deposition on the inner to middle ramp within open marine waters. Once-a-Week Quarry comprises four facies, dominated by crinoidal debris representing deposition on the inner ramp. Both localities expose Gigantoproductus shell beds...
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Journal Article
Journal: Paleobiology
Published: 01 March 2006
Paleobiology (2006) 32 (2): 215–235.
...Charlie J. Underwood Abstract The Neoselachii are a monophyletic group including all of the extant sharks and rays. They underwent rapid diversification throughout the Jurassic and Cretaceous, going from low-diversity assemblages of members of extinct orders in the Late Triassic to diverse...
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Journal Article
Published: 01 May 2007
Proceedings of the Yorkshire Geological Society (2007) 56 (3): 209–214.
... and between Kettlethorpe and Thorney, north-west Lincolnshire. By comparison with those from the Blyborough and Tetney Lock sections and other records nearby in Yorkshire and Nottinghamshire, an assemblage from near Scotter is considered to be from a level low in the Westbury Formation, and those from a site...
FIGURES
Journal Article
Published: 01 February 1993
Journal of the Geological Society (1993) 150 (1): 67–75.
... ~- ] Chlorite -~ Mixed layer chlorite/ smect~te l Smect,te Palygor skate/sepiolite (under 2%) Fig. 6. Clay mineral assemblages in the upper Mercian Mudstone Group from (a) South Devon and (b) Somerset. enriched evaporitic marine (6180 between +1 and +5%) dolomite fields of Taylor (1983) The 6~80 variations...