Cheirolepidiaceous diversity: An anatomically preserved pollen cone from the Lower Jurassic of southern Victoria Land, Antarctica

Hieger, Timothy J.; Serbet, Rudolph; Harper, Carla J.; Taylor, Thomas N.; Taylor, Edith L.; Gulbranson, Erik L.

doi:10.1016/j.revpalbo.2015.05.003

Cited by 23 publications

(8 citation statements)

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“…The vast majority of fungal remains reported from Antarctica to date come from Permian and Triassic peats, as well as from Cretaceous silicified woods. Evidence of fungi in Jurassic sediments are presently limited to a brief note by Bomfleur et al (2007) on fungal remains that appear to occur within a microbial mat from Mount Carson (northern Victoria Land), they associated with a tylosis-forming conifer wood (Harper et al 2012), and putative hyphae within leaf vascular bundles (Hieger et al 2015). These studies indicate that the Jurassic provides a largely untapped source of information on fungal diversity and plant–fungal interactions in the Mesozoic of Antarctica.…”

Section: Discussionmentioning

confidence: 99%

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Structurally preserved fungi from Antarctica: diversity and interactions in late Palaeozoic and Mesozoic polar forest ecosystems

et al. 2016

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Chert and silicified wood from the Permian through Cretaceous of Antarctica contain abundant information on fungal diversity and plant-fungal interactions. The chert deposits represent a particularly interesting setting for the study of plant-fungal interactions because they preserve remains of distinctive high latitude forest ecosystems with polar light regimes that underwent a profound climate change from icehouse to greenhouse conditions. Moreover, some of the cherts and wood show the predominance of extinct groups of seed plants (e.g. Glossopteridales, Corystospermales). Over the past 30 years, documentation of fossil fungi from Antarctica has shifted from a by-product of plant descriptive studies to a focused research effort. This paper critically reviews the published record of fungi and fungal associations and interactions in the late Palaeozoic and Mesozoic cherts and silicified wood from Antarctica; certain fungal palynomorphs and fungal remains associated with adpression fossils and cuticles are also considered. Evidence of mutualistic (mycorrhizal), parasitic and saprotrophic fungi associated with plant roots, stems, leaves and reproductive organs is presented, together with fungi occurring within the peat matrix and animal-fungus interactions. Special attention is paid to the morphology of the fungi, their systematic position and features that can be used to infer fungal nutritional modes.

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Section: Discussionmentioning

confidence: 99%

“…1965, Ballance & Watters 1971, Bomfleur et al . 2011, Hieger et al 2015). During the Cretaceous, Antarctica reached the approximate geographical position that it occupies today (Lawver et al .…”

Section: Introductionmentioning

confidence: 99%

Structurally preserved fungi from Antarctica: diversity and interactions in late Palaeozoic and Mesozoic polar forest ecosystems

et al. 2016

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“…Brachyoxylon is a fossil genus commonly related to the extinct coniferous family Cheirolepidiaceae due to its association with other taxa related to this family (e.g., Classopollis (Pflug) Pocock & Jansonius or Pseudofrenolopsis Nathorst) (Alvin et al, 1978;Hieger et al, 2015). Cheirolepidiaceae is not a valid name according to Doweld (Greppi et al, 2021).…”

Section: Remarks and Comparisonsmentioning

confidence: 99%

Conifer Fossil Woods from the Mid-Cretaceous (Albian) Kachaike Formation, Santa Cruz Province, Argentina

Greppi¹,

Pujana²,

Ruiz³

et al. 2023

Ameghiniana

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We describe 21 silicified woods from the Kachaike Formation (Albian, mid-Cretaceous), collected in the Tucu Tucu Ranch, west-central Santa Cruz Province, Argentinean Patagonia. The specimens are composed entirely of secondary xylem and the preservation varies among them. Anatomical studies indicate that they are conifers related to the families Araucariaceae and Hirmeriellaceae (=Cheirolepidiacea) and are placed into two fossil species: Agathoxylon antarcticum and Brachyoxylon patagonicum. All the specimens studied show marked growth rings, indicating annual seasonality. Decay patterns similar to those produced by modern xylophagous fungi are also recognized. The presence of Araucariaceae and Hirmeriellaceae allows a better understanding of the paleoflora of the Kachaike Formation, based previously only on palynological and fossil leaf studies. In addition, it provides additional information regarding the dominance of the tree canopy by conifers during the Cretaceous of Patagonia.

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“…Brachyoxylon has been related to various conifer families including Araucariaceae, Cupressaceae, and Protopinaceae (e.g., Hollick and Jeffrey 1909;Seward, 1919;. However, it is assumed to belong to the Cheirolepidiaceae based on its frequent co-occurrence with other fossil genera assigned to this family (e.g., pollen, seed cones, leaves) (Alvin et al, 1981;Alvin, 1982;Zhou, 1983;Machhour and Pons, 1992;Rothwell et al, 2007;Limarino et al, 2012;Hieger et al, 2015). Patagonian records of this fossil genus are mostly related to the Cheirolepidiaceae (Bodnar et al, 2013;Vera and Césari, 2015;Greppi et al, 2020Greppi et al, , 2021.…”

Section: The Cheirolepidiaceaementioning

confidence: 99%

Brachyoxylon fossil woods with traumatic resin canals from the Upper Cretaceous Cerro Fortaleza Formation, southern Patagonia (Santa Cruz Province, Argentina)

Rombola

Greppi

Pujana

et al. 2022

Cretaceous Research

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Cheirolepidiaceous diversity: An anatomically preserved pollen cone from the Lower Jurassic of southern Victoria Land, Antarctica

Cited by 23 publications

References 57 publications

Structurally preserved fungi from Antarctica: diversity and interactions in late Palaeozoic and Mesozoic polar forest ecosystems

Structurally preserved fungi from Antarctica: diversity and interactions in late Palaeozoic and Mesozoic polar forest ecosystems

Conifer Fossil Woods from the Mid-Cretaceous (Albian) Kachaike Formation, Santa Cruz Province, Argentina

Brachyoxylon fossil woods with traumatic resin canals from the Upper Cretaceous Cerro Fortaleza Formation, southern Patagonia (Santa Cruz Province, Argentina)

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