Vitinellopsis nov. gen., a new calcareous alga (Chlorophyta, Bryopsidales) from the Silurian of Gotland (Sweden), and the tribe Vitinelleae nov. nom

Vachard, Daniel; Bucur, Ioan I.; Munnecke, Axel

doi:10.1016/j.geobios.2021.10.001

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…Such an architecture produces, in the microenvironment between the branches, conditions conducive to the precipitation of calcium carbonate (Pentecost, 1991). Calcareous bryopsidalean algae with complex thalli of this sort are known from the Silurian and include Palaeoporella Stolley, 1893, Dimorphosiphon Høeg, 1927, Maslovina Obrhel, 1968a, Paralitanaia Mamet and Préat, 1985, and Vitinellopsis Vachard, Bucur, and Munnecke, 2022.…”

Section: Systematic Paleontologymentioning

confidence: 99%

Earltonella fredricksi n. gen n. sp. and Thalassocystis striata (Chlorophyta, Bryopsidales) from the Silurian (Llandoverian) of the Timiskaming outlier, Ontario, Canada

LoDuca

Meacher²,

Pepper³

et al. 2022

J. Paleontol.

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Specimens of macroalgae are reported and described herein from newly discovered algal-Lagerstätten within the Llandoverian Earlton Formation at two localities separated by a distance of 45 km in the Timiskaming outlier of Ontario, Canada. Both localities are characterized by abundant specimens of the Codium-like bryopsidalean green alga Thalassocystis striata, the details of which, including within-assemblage morphological variation, compare closely to material from the type locality. Previously, this noncalcified taxon was known only from the Llandoverian Schoolcraft Formation in northern Michigan, ~500 km to the west. These new occurrences provide additional evidence that the alga-bearing intervals within the Earlton Formation at both Timiskaming localities correlate with the Schoolcraft Formation in the Michigan Basin. An associated noncalcified form at one of the Timiskaming localities is described as a new genus and species, Earltonella fredricksi LoDuca, n. gen. n. sp., the thallus architecture of which, with a creeping, runner-like stolon and numerous pinnate fronds, broadly resembles that of the living bryopsidalean alga Caulerpa. In broader terms, these new algal-Lagerstätten indicate that for a brief time during the late Llandoverian, as with other times during the Silurian, unusual conditions conducive to both the proliferation and preservation of expansive ‘seaweed meadows’ were established across regional-scale areas of the Laurentian epeiric sea.

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Section: Systematic Paleontologymentioning

confidence: 99%

Earltonella fredricksi n. gen n. sp. and Thalassocystis striata (Chlorophyta, Bryopsidales) from the Silurian (Llandoverian) of the Timiskaming outlier, Ontario, Canada

LoDuca

Meacher²,

Pepper³

et al. 2022

J. Paleontol.

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Stromatoporoids and their symbionts in the upper Silurian of Gotland: Implications for palaeobiological and palaeoecological analysis

Kershaw

2023

Palaeogeography, Palaeoclimatology, Palaeoecology

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Reinterpretation of Voronocladus from the Silurian of Ukraine as a bryopsidalean alga (Chlorophyta): The outlines of a major early Paleozoic macroalgal radiation begin to come into focus

LoDuca

2024

Review of Palaeobotany and Palynology

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Vitinellopsis nov. gen., a new calcareous alga (Chlorophyta, Bryopsidales) from the Silurian of Gotland (Sweden), and the tribe Vitinelleae nov. nom

Cited by 3 publications

References 18 publications

Earltonella fredricksi n. gen n. sp. and Thalassocystis striata (Chlorophyta, Bryopsidales) from the Silurian (Llandoverian) of the Timiskaming outlier, Ontario, Canada

Earltonella fredricksi n. gen n. sp. and Thalassocystis striata (Chlorophyta, Bryopsidales) from the Silurian (Llandoverian) of the Timiskaming outlier, Ontario, Canada

Stromatoporoids and their symbionts in the upper Silurian of Gotland: Implications for palaeobiological and palaeoecological analysis

Reinterpretation of Voronocladus from the Silurian of Ukraine as a bryopsidalean alga (Chlorophyta): The outlines of a major early Paleozoic macroalgal radiation begin to come into focus

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