Comments on “substrate control of Lower Cambrian trace fossils from Bornholm, Denmark”

Fillion, D.; Pickerill, Ron K.

doi:10.1016/0031-0182(90)90142-t

Cited by 9 publications

(8 citation statements)

References 8 publications

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“…Bromley and Fiirsich, 1980;Bromley, 1990;Fillion and Pickerill, 1990b;Pickerill, 1994). Likewise, Fursich (1974) suggested that ichnogenera are formulated on morphological features, although these features may be chosen from what is interpreted as behavioral activity of a high level of significance.…”

Section: Ethological and Preservational Considerationsmentioning

confidence: 92%

Commentary

Keighley

Pickerill

1995

Ichnos

Self Cite

189

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Section: Ethological and Preservational Considerationsmentioning

confidence: 92%

Commentary

Keighley

Pickerill

1995

Ichnos

Self Cite

189

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“…Durand (1984) afirma que ocasionalmente Skolithos apresentam formas em funil no topo das suas escavações e que Monocraterion e Skolithos ocorrem em diferentes associações de traços fósseis e ambientes (Durand, 1984(Durand, , 1985. Contudo, vários autores ainda consideram a forma em funil como critério para determinação de Monocraterion como um icnogênero (Alpert, 1974;Fillion & Pickerill, 1990;Jensen, 1997). Monocraterion pode ser confundido, quando visto em planta, com Rosselia ou Laevicyclus (Fillion & Pickerill, 1990;Jensen, 1997).…”

Section: (Figura 4e)unclassified

Traços fósseis dos depósitos marinhos rasos da Formação Pitinga, Siluriano superior da Bacia do Amazonas, Rio Tapajós, PA, Brasil

Gonçalves

Soares

Santos

et al. 2017

Rev. bras. paleontol.

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The Silurian-Devonian interval of the Amazonas Basin exhibits low trace fossils diversity. Transgressive post-glacial deposits (upper Silurian) in the Tapajós River edge shows a trace fossils assemblage composed by Arthrophycus, Beaconites, Bifungites, Diplichnites, Lockeia, Monocraterion, Planolites and Phycodes, also indeterminate tubes and indeterminate arthropod scratches. This assemblage illustrates the Cruziana Ichnofacies preserved in laminated siltstone, wavy bedding sandstone with tabular and sigmoidal cross-stratification. The integration of ichnologic and sedimentologic datasets suggests a wave-dominated shallow marine palaeoenvironment. The predominance of epifaunal trace fossils indicates relatively calm water and deposition just below of the fair-weather wave base. The tracemakers were mostly worms and arthropods, but also rare bivalves. The gradual retreat of glaciers in the Silurian-Devonian transition led to the eustatic rise and the emergence of news ecospace in transgressive post-glacial sea. Thereby, the low icnofaunistic diversity could be related to cold seas that dominated the Gondwana coast enabling infaunal occupation by organisms adapted to the environment stress during the Silurian. Oscillations in the sedimentation rates and erosion of the shallow-tiers traces fossils may also be responsible by the low diversity recorded in the studied deposits.

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“…Compaction can produce intersections of unrelated burrows (the`Bathurst effect' of Fillion et al 1990) that resemble rami®cation or other branching patterns (`false branching'; cf. Bromley 1990).…”

Section: Taphonomic Factors Affecting Trace Fossilsmentioning

confidence: 99%

“…Pressure solution can obscure or destroy trace fossils preserved on bedding planes in carbonate strata (Narbonne 1984). So strong is the diagenetic in¯uence on trace fossil preservation in carbonates that toponomic trace fossils are preferentially preserved in bioclastic sediments, whereas infaunal traces are preferentially preserved in calcilutites (the`Narbonne effect' of Fillion et al 1990). Diagenetic effects can also make it dif®cult to determine whether a trace fossil was produced in a lithi®ed or unlithi®ed substrate and thus should be named as a boring or a burrow (e.g.…”

Section: Taphonomic Factors Affecting Trace Fossilsmentioning

confidence: 99%