Nomenclatural Status of the Palaeobotanical “Artificial Taxa” Established in Brongniart’S 1822 “Classification” Paper

Cleal, Christopher J.; Thomas, Barry A.

doi:10.2478/if-2018-0001

Cited by 15 publications

(7 citation statements)

References 56 publications

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“…After these taxonomic revisions, therefore, the only Lepidodendron species remaining in the Lepidodendraceae are those in the first “subtribe” of the ‘Lepidotae’; consequently, as that “subtribe” was monogeneric, the “subtribe” diagnosis given by Sternberg (1820) can be taken as the diagnosis of the fossil‐genus Lepidodendron . Brongniart (1822) illegitimately named the ‘Lepidotae’ as Sagenaria (see Cleal & Thomas, 2018, for a discussion on this and the other generic names used in Brongniart, 1822) but later (Brongniart, 1828) reverted to the name Lepidodendron , where he also gave a longer generic diagnosis, noting that the triangular shape of the scar where the leaves had been attached is an essential characteristic of the genus.…”

Section: Protologue Of Lepidodendronmentioning

confidence: 99%

The nomenclature of fossil‐taxa representing different preservational states:Lepidodendronas a case‐study

Thomas

Cleal

2020

TAXON

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The fossil‐genus Lepidodendron is normally used for adpressions, casts and moulds of Palaeozoic arborescent lycophyte stems, but it has also sometimes been used for anatomically preserved stems and even whole‐plant reconstructions. When used for anatomically preserved fossils, Lepidodendron is usually now restricted to the group of species allied to Lepidodendron hickii, but this results in confusion and potential disruption to the traditional use of the fossil‐genus for non‐anatomically preserved stems. The case is made for separate sets of fossil‐genera for the anatomically and non‐anatomically preserved stems, with the circumscription of Lepidodendron being limited to adpressions, casts and moulds. A new fossil‐genus, Dimicheleodendron gen. nov., is proposed for the lycophyte stem petrifactions typified by Lepidodendron hickii.

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Section: Protologue Of Lepidodendronmentioning

confidence: 99%

The nomenclature of fossil‐taxa representing different preservational states:Lepidodendronas a case‐study

Thomas

Cleal

2020

TAXON

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“…Originally Pecopteris was erected by Brongniart () as one of five sections for Schlotheim's () Filicites , (a now invalid name, see Cleal, ; Doweld, ). Sternberg () used Pecopteris as a genus name for sterile fern foliage of Paleozoic age and the name was accepted (but see Cleal, ; Doweld, ; Cleal & Thomas ). Pecopteris (Brongniart) Sternberg is defined by Brongniart () as: Segments attached to the rachis along their whole base, free just at the rachis support.…”

Section: Systematicsmentioning

confidence: 99%

How diverse were ferns in the Baltic amber forest?

Sadowski

Seyfullah

Regalado³

et al. 2019

J of Sytematics Evolution

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Diverse temperate forest types and a high atmospheric humidity have recently been suggested for the Eocene source area of Baltic amber. However, ferns are astonishingly rare as inclusions in this amber, which is in contrast to other seed‐free land plants, fungi, and lichens. Moreover, the identities of some of the few described putative fern taxa are dubious, and some fossils were even assigned to the Paleozoic seed fern genera Alethopteris, Pecopteris and to the form genus Sphenopteris containing Paleozoic and Mesozoic fern‐like leaf fossils. Here, we review previously described fern inclusions from Baltic amber and identify further fern‐like leaf inclusions as belonging to the extant angiosperm genus Comptonia (sweet ferns, Myricaceae). We conclude that only one taxon, Matonia striata (Matoniaceae), can with confidence be identified as a Polypodiopsida representative. Although “Pecopteris” humboldtiana is so far only known as sterile foliage, its leaf morphology strongly suggests that also this taxon belongs to the Polypodiopsida rather than to any other tracheophyte lineage. We propose accommodating “Pecopteris” humboldtiana in the new genus Berendtiopteris. “Alethopteris” serrata and “Sphenopteris” phyllocladoides are not to be regarded as evidence of ferns from Baltic amber. Reinvestigation of the holotypes of these two taxa did not reveal to which tracheophyte lineages these fossils belong. We suggest that the scarcity of fern remains from Baltic amber may reflect both a relatively low fern diversity in the source area of the fossil resin, and an absence or rarity of epiphytic and climbing ferns as observed in modern temperate forest ecosystems.

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“…II, 7/8, p. 104, Sagenaria bronGn. as suggested byCleal and Thomas (2018). Bergeria marginata C.PreSl inSternberg, vol.…”

mentioning

confidence: 83%

“…The specimen is the type of the generic name Culmites bronGn. (Cleal and Thomas 2018). used this name as validly published, although it was based solely on an illustration, because precise illustration itself can be considered to meet the requirements of valid publication (Art.…”

Section: Collectionmentioning

confidence: 99%

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Catalogue of plant fossils described in works by Kaspar M. Sternberg. Second revised edition

Kvaček¹,

Dašková²,

Libertı́n³

2021

s-fi

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This Catalogue is the second revised and expanded edition of the first edition, published in 1997 by J. Kvaček and Straková. The material presented in the original edition was completely nomenclaturally revised and newly photodocumented. This second edition provides as much updated information as it was possible to acquire. The Catalogue includes and reviews new nomenclatural and taxonomic assignments of Sternberg’s type material and taxa published after 1997. It is clear that much of the impulse to conduct this new research came from the first edition of the Catalogue, as the community realized the type material is available for study. In summary, the second edition of the Catalogue comprises specimens that are types of 82 genera, 3 subgenera, 535 species and 14 varieties described by Kaspar Maria Count Sternberg and his collaborators: K. B. Presl and A. C. J. Corda. The type material of 32 genera, 233 species and 5 varieties is housed in the National Museum, Prague. The types of 79 species and 4 varieties have been located in other European museums. The rest of the type specimens are currently missing – destroyed, lost, or of unknown repository. For available specimens, more detailed taxonomic, stratigraphic and geographical information is provided. All cases are noted where names in Sternberg’s works have priority over names currently used, although the current names may be more widely known. Only two nomenclatural acts are published in the present work; they are designations of a lectotypes for Aspleniopteris difformis Sternb. and Cycadites salicifolius C.Presl in Sternberg.

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Nomenclatural Status of the Palaeobotanical “Artificial Taxa” Established in Brongniart’S 1822 “Classification” Paper

Cited by 15 publications

References 56 publications

The nomenclature of fossil‐taxa representing different preservational states:Lepidodendronas a case‐study

The nomenclature of fossil‐taxa representing different preservational states:Lepidodendronas a case‐study

How diverse were ferns in the Baltic amber forest?

Catalogue of plant fossils described in works by Kaspar M. Sternberg. Second revised edition

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