First report of permineralised plants in the Stephanian of Arnao (Asturias, northwestern Spain)

Césari, Silvia N.; Álvarez-Vázquez, Carmen; Méndez-Bedia, I.; Álvarez-Lao, Diego J.; Turrero, Pablo; Arbizu, M.

doi:10.1016/j.palaeo.2015.09.028

Cited by 10 publications

(7 citation statements)

References 33 publications

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“…Interestingly, tyloses have also been reported in the late Pennsylvanian C. andresii from Asturias, where they may have formed as a response to a fungal infection or wounding (Césari et al . 2015). Unlike the specimen from Asturias that shows early stages of tylose formation in the form of isolated bubble‐like structures in the tracheid lumina, the Dadoxylon sp.…”

Section: Discussionmentioning

confidence: 99%

“…The well‐preserved wood of Cordaixylon andresii described by Césari et al . (2015) is characterized by tracheids with uniseriate or alternate biseriate and triseriate pitting of the araucarian type. These features are also observed in the Dadoxylon sp.…”

Section: Methodsmentioning

confidence: 99%

“…from Erillcastell are circular in shape, while those of C. andresii are hexagonal (Césari et al . 2015); and (2) the cross‐field pits of the Dadoxylon sp. from Erillcastell are numerous, small and circular, with spindle‐shaped apertures, which contrasts with the 1–2 large pits of C. andresii .…”

Section: Methodsmentioning

confidence: 99%

“…The only other Stephanian silicified plants from Spain belong to the coastal marine (deltaic) facies of the Arnao coalfield (Asturias), with the older records also corresponding to lowland paralic floras such as those found in the coal balls from the Namurian of León and the Westphalian of Asturias (Césari et al . 2015 and references therein). Here, we describe permineralized wood specimens recently collected in the Erillcastell Basin (Central Pyrenees, Catalonia, Spain).…”

Section: Figmentioning

confidence: 99%

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First report of silicified wood from a late Pennsylvanian intramontane basin in the Pyrenees: systematic affinities and palaeoecological implications

Tosal,

Decombeix,

Meyer‐Berthaud

et al. 2023

Papers in Palaeontology

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The first anatomically preserved wood specimens of an upland Carboniferous flora from the Iberian Peninsula are reported from the Erillcastell Basin (Eastern Pyrenees, Catalonia, Spain). Two taxa are described, a calamitacean Equisetales (Arthropitys sp.) and a Cordaitales (Dadoxylon sp.). The Arthropitys specimen has fusiform multiseriate rays composed of square parenchyma cells with conspicuous uniseriate or multiseriate simple pits. These pits are located near the transverse walls and occasionally in the tangential walls. The tracheids vary in lumen size, with scalariform‐bordered pits on their radial walls and multiseriate pits in their cross‐field areas. The Dadoxylon specimen commonly has uniseriate fusiform rays. The tracheids are long, with a square shape in transverse section. Their radial walls bear araucarian pitting with a uniseriate to triseriate arrangement. The pits are circular with a spindle‐shaped aperture. Comparison of the Erillcastell specimens with coeval species from Europe indicates that they could belong to new species. The good preservation of the new fossil wood yields significant palaeoenvironmental information. The lack of marked growth rings in both specimens and the presence of tyloses in Dadoxylon suggest that the climate in the intramontane basins of the Pyrenees was slightly seasonal towards the end of the Carboniferous. This contrasts with the marked seasonality of coeval lowland basins. Such upland habitats may have enhanced the survival of plants adapted to humid conditions in a global context of increasing aridity.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Figmentioning

confidence: 99%

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First report of silicified wood from a late Pennsylvanian intramontane basin in the Pyrenees: systematic affinities and palaeoecological implications

Tosal,

Decombeix,

Meyer‐Berthaud

et al. 2023

Papers in Palaeontology

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“…Tyloses have been reported in several woods assigned to the Cordaitales, the Carboniferous-Permian sister-group of the conifers. Recent examples include Pennsylvanian woods from Spain assigned to Cordaixylon (Césari et al 2015) and Dadoxylon (Tosal et al 2021), as well as a Permian cordaitalean root from China (Shi et al 2020). Abundant tyloses have also been reported in the secondary xylem of Medullosa olseniae (Medullosale) from the Permian of Texas (Roberts and Barghoorn 1952).…”

Section: Lignophytesmentioning

confidence: 99%

Tyloses in fossil plants: New data from a Mississippian tree, with a review of previous records

et al. 2022

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Tyloses are protoplasmic swellings of parenchyma cells into the lumen of adjacent conducting cells. They develop as part of the heartwood formation process, or in response to embolism or pathogen infection. Here, we report the oldest fossil evidence to date of tylosis formation that occurs in permineralized wood of the (pro)gymnosperm Dameria hueberi from the Tournaisian (lower Mississippian, ca. 350 Ma) of Australia. Different developmental stages of tylosis formation are recognizable that range from small bubble-like protrusions to dense tyloses entirely filling the lumen of the conducting cells. The trigger for the development of tyloses in D. hueberi remains unknown. A survey of the fossil record of tyloses shows their occurrence in most groups of vascular plants since the Carboniferous. Future research in this field will screen even older (Devonian) fossils for evidence of tyloses and aim to understand the roles these structures have had in plant-pathogen interactions and plant hydraulic properties in the past.

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Ancient carbonate reefs as geological heritage: state of knowledge and case example

Ruban

2023

Carbonates Evaporites

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First report of permineralised plants in the Stephanian of Arnao (Asturias, northwestern Spain)

Cited by 10 publications

References 33 publications

First report of silicified wood from a late Pennsylvanian intramontane basin in the Pyrenees: systematic affinities and palaeoecological implications

First report of silicified wood from a late Pennsylvanian intramontane basin in the Pyrenees: systematic affinities and palaeoecological implications

Tyloses in fossil plants: New data from a Mississippian tree, with a review of previous records

Ancient carbonate reefs as geological heritage: state of knowledge and case example

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