Event Sedimentation, Deposition Rate, and Paleoenvironment Using Crowded<i>Rosselia</i>Assemblages of the Bluesky Formation, Alberta, Canada

Campbell, S. Gordon; Botterill, Scott E.; Gingras, Murray K.; MacEachern, James A.

doi:10.2110/jsr.2016.27

Cited by 22 publications

(4 citation statements)

References 37 publications

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“…Also, the funnel shaped opening is superficially similar to that of Rosselia (Campbell et al, 2016). The rarity of specimens in the Ballagan Formation precludes a re-assignment to another ichnogenus or a confident interpretation of the trace maker (bivalves or polychaetes).…”

Section: Monocraterion and Asterosoma?mentioning

confidence: 83%

Ichnofauna record cryptic marine incursions onto a coastal floodplain at a key Lower Mississippian tetrapod site

Bennett

Howard

Davies

et al. 2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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Ichnofossils from a Lower Mississippian (Tournaisian) coastal plain succession with a rich vertebrate fauna, including early tetrapods, record repeated, short-lived marine interactions that influenced floodplain lake development and ecosystems. The ichnofauna contrasts with the more typical Scoyenia Ichnofacies of other Devonian-Carboniferous tetrapod sites. In the Tournaisian Ballagan Formation of the Scottish Borders, Chondrites is identified in 128 horizons within a 500-m succession and is associated with lesser occurrences of phycosiphoniform burrows, Diplocraterion, Rhizocorallium and Zoophycos?. Chondrites and phycosiphoniform burrows commonly occur within dolostones, interpreted as part of a saline-hypersaline lake facies association, containing a non-marine to marginal marine macrofauna of bivalves, ostracods, Spirorbis, Serpula and sarcopterygian fish. Marine scolecodonts are reported from 18 horizons of diverse lithology, four of which co-occur with Chondrites. The single-colonisation, single-tier, high ichnofabric index and thin beds (mean 10 cm thick) that characterise Chondrites horizons indicate: 1) adverse Tournaisian coastal floodplain ichnofauna Bennett et al. 2016 2 environmental conditions; 2) rapid colonisation of the sediment; and 3) short-lived bioturbation episodes.Other ichnotaxa identified are Monocraterion and Asterosoma?, which occur exclusively within the overbank or fluvial facies associations, and are here interpreted to have lived in freshwater conditions. The Chondrites trace-makers are interpreted as having originated in shallow-marine waters and were transported into floodplain lakes by storm surge events, although a few examples suggest more significant transgressions. Ichnofossils are much more common than marine body fossils or scolecodonts, and thus record cryptic marine incursions that might otherwise remain unidentified. This study contributes to our understanding of the complex mosaic of environments present when terrestrial tetrapods first appeared.

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Section: Monocraterion and Asterosoma?mentioning

confidence: 83%

Ichnofauna record cryptic marine incursions onto a coastal floodplain at a key Lower Mississippian tetrapod site

Bennett

Howard

Davies

et al. 2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…Rosselia socialis has been interpreted as the dwelling structure of terebellid polychaetes (Nara, 1995(Nara, , 2002 and is common in a variety of fully marine to brackish water environments (Carmona Uchman & Krenmayr, 1995). It is a common component of the Cruziana Ichnofacies and is associated with high sedimentation rates and repeated erosion (Campbell et al, 2006(Campbell et al, , 2016Frieling, 2007;Nara, 1995Nara, , 2002Netto et al, 2014). It is most abundant in transgressive settings (Nara, 2002).…”

Section: Spongeliomorpha Is Architecturally Similar Tomentioning

confidence: 99%

Unconformity generation and the shift from storm‐dominated to tide‐dominated processes in a Jurassic retroarc foreland basin: Insights from ichnology

Wroblewski

Morris

2023

The Depositional Record

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An enigmatic transition from the storm‐dominated, offshore to lower shoreface deposits of the Redwater Shale Member (Sundance Formation) to the overlying mixed tidal and aeolian Windy Hill Sandstone (Morrison Formation) in the Oxfordian of the North American Western Interior has long been a source of intrigue. Previously proposed drivers include the progradation of a large, tide‐dominated delta onto a storm‐dominated shelf, a complete reorganisation of the basin's hydrodynamics and climate, or the development of a regional unconformity (termed the J‐5). In south‐eastern Wyoming, the Redwater Shale is characterised as an offshore to distal shoreface deposit with glauconitic siltstones and sandstones punctuated by coquinoid and sandy tempestites and hosting a Cruziana Ichnofacies. The Windy Hill Sandstone, a time‐transgressive, sand‐rich, intertidal succession with classic Pteraichnus and stressed Skolithos Ichnofacies, sharply overlies the Redwater Shale and records an abrupt basinward shift in facies that accompanied at least tens of metres of sea‐level fall. New, detailed sedimentological, ichnological and architectural data collected across this transition in the study area provide fresh insights into the depositional history of these units and demonstrates the existence locally of a composite J‐5 unconformity. The unconformity developed as tectonically driven, prograding shoreline trajectories of the Redwater Shale gave way to degrading trajectories of the Windy Hill Sandstone, leading to a forced regression and formation of a regressive surface of marine erosion. The sharp juxtaposition of intertidal flat facies (Pteraichnus Ichnofacies) directly upon offshore to lower shoreface deposits (Cruziana Ichnofacies) is the key to recognising the unconformity and proves the value of the previously underutilised ichnological data.

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“…Reduced rates of deposition are also reflected in more intense biogenic sediment reworking due to an increased colonization window between the successive storm events (MacEachern et al, 2005;Campbell et al, 2016).…”

Section: Factorsmentioning

confidence: 99%

Sedimentological and ichnological analyses of the continental to marginal-marine Centenario Formation (Cretaceous), Neuquén Basin, Argentina: Reservoir implications

Shchepetkina

Ponce

Carmona

et al. 2020

Marine and Petroleum Geology

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Event Sedimentation, Deposition Rate, and Paleoenvironment Using CrowdedRosseliaAssemblages of the Bluesky Formation, Alberta, Canada

Cited by 22 publications

References 37 publications

Ichnofauna record cryptic marine incursions onto a coastal floodplain at a key Lower Mississippian tetrapod site

Ichnofauna record cryptic marine incursions onto a coastal floodplain at a key Lower Mississippian tetrapod site

Unconformity generation and the shift from storm‐dominated to tide‐dominated processes in a Jurassic retroarc foreland basin: Insights from ichnology

Sedimentological and ichnological analyses of the continental to marginal-marine Centenario Formation (Cretaceous), Neuquén Basin, Argentina: Reservoir implications

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