Microspores, megaspores, palynofacies, and depositional history of the upper Givetian Maywood Formation, Northern Wyoming, USA

Pasquo, Mercedes di; Hu, Mingxi; Zatoń, Michał; Myrow, Paul M.

doi:10.1016/j.revpalbo.2022.104604

Cited by 6 publications

(2 citation statements)

References 86 publications

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“…Chi and Hills (1976) showed no impoverishment within the Givetian megaspore succession in eastern USA. di Pasquo et al (2022) documented a microflora from Wyoming (USA) that did not reveal any significant taxonomic decrease in the miospore assemblage. Moreover, some of the species that disappear in eastern Europe at the Ex/Aur boundary are still present in the Frasnian in Canadian sections, e.g.…”

Section: The Palynological Record Of the Taghanic Eventmentioning

confidence: 99%

“…Aboussalam 2003;Aboussalam and Becker 2011;Marshall et al 2011;Turnau 2014; see Figure 2). This interval was also the subject of palynological investigations made by Turnau (2014) for Poland, Marshall et al (2011) for the Eday Marl Formation in Scotland and di Pasquo et al (2022) who described this event from Wyoming (USA). However, the majority of Givetian palynological studies have not focused on this interval as being the record of the palaeoenvironmental crisis.…”

Section: Introductionmentioning

confidence: 96%

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The palynology of the Middle–Upper Devonian (Givetian–Frasnian) in the Łysogóry-Radom and Lublin basins, south-central Poland

Kondas

Filipiak

2022

Palynology

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The Middle and Upper Devonian (Givetian and Frasnian) deposits of the Łysogóry-Radom and Lublin basins (south-central Poland) presented a diversified palynomorph assemblage. Numerous miospore taxa were documented and also contained well-preserved and varied plant remains, scolecodonts, acritarchs, chitinozoans, organic tentaculitoids, and bioclasts of uncertain biological affinity. Aneurospora extensa, Geminospora aurita, Samarisporites triangulatus and other documented taxa allowed us to establish two local miospore zones: the Givetian ‘Geminospora’ extensa zone and the Givetian–Frasnian Geminospora aurita zone. The time interval of these two zones shows the impoverishment in taxonomic diversity of microflora related to the rapid climate changes that are associated with the global Taghanic Event. The palynofacies analysis indicated a shallow-shelf environment with significant terrestrial input that was controlled by transgressive-regressive cycles, which confirmed the dynamic palaeoenvironmental changes. The new miospore taxon Retusotriletes radomskii is described.

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Section: The Palynological Record Of the Taghanic Eventmentioning

confidence: 99%