Zlivifructus gen. nov., a new member of the Normapolles complex

Heřmanová, Zuzana; Dašková, Jiřina; Ekrt, Boris; Kvaček, Jiřı́

doi:10.1016/j.revpalbo.2017.06.012

Cited by 9 publications

(3 citation statements)

References 17 publications

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“…A number of flowers/inflorescences with Normapolles-type pollen have been described from the middle and late Cretaceous (e.g. Friis 1983;Sims et al 1999;Schönenberger et al 2001;Friis et al 2003Friis et al , 2006Heřmanová et al 2011Heřmanová et al , 2017. However, there is only a single taxon with pollen superficially similar to the pollen from our material (Caryanthus Friis 1983).…”

Section: Comparison Of In Situ and Dispersed Pollenmentioning

confidence: 54%

A myricaceous male inflorescence with pollen in situ from the middle Eocene of Europe

Wilde

Frankenhäuser

Lenz

2021

Palaeobio Palaeoenv

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The late middle Eocene lacustrine filling of a maar lake at Eckfeld (Eifel Hills, Rhineland-Palatinate, western Germany) has provided four specimens of male inflorescences (catkins) in different stages of anthesis, each with pollen preserved in situ. The appearance of the successive stages together with triporate pollen showing an irregular surface and a myricoid micro-ornamentation clearly suggests an assignment of the fossil catkins to the Myricaceae. The material is described as a new genus and new species and represents the oldest record of male catkins for the family. The in situ preserved pollen grains are comparable to dispersed grains of Triatriopollenites excelsus.

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Section: Comparison Of In Situ and Dispersed Pollenmentioning

confidence: 54%

A myricaceous male inflorescence with pollen in situ from the middle Eocene of Europe

Wilde

Frankenhäuser

Lenz

2021

Palaeobio Palaeoenv

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“…The digital restoration of the 3D morphology of the Ediacara fossil Pteridinium simplex Gürich, 1930 using micro-CT revealed information concerning its ecology and its phylogenetic affinity (Meyer et al 2014). Micro-CT has successfully been used for studies of plant and insect mesofossils (Kvaček et al 2016;Heřmanová et al 2017;Kvaček et al 2018aKvaček et al , 2018b. Application of the method for lignified fossil plants embedded in sediment is not always easy.…”

Section: Palaeontological Samplesmentioning

confidence: 99%

Micro-computed tomography for natural history specimens: a handbook of best practice protocols

Keklikoglou

Faulwetter

Chatzinikolaou

et al. 2019

EJT

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Micro-computed tomography (micro-CT or microtomography) is a non-destructive imaging technique using X-rays which allows the digitisation of an object in three dimensions. The ability of micro-CT imaging to visualise both internal and external features of an object, without destroying the specimen, makes the technique ideal for the digitisation of valuable natural history collections. This handbook serves as a comprehensive guide to laboratory micro-CT imaging of different types of natural history specimens, including zoological, botanical, palaeontological and geological samples. The basic principles of the micro-CT technology are presented, as well as protocols, tips and tricks and use cases for each type of natural history specimen. Finally, data management protocols and a comprehensive list of institutions with micro-CT facilities, micro-CT manufacturers and relative software are included.

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“…nov, from the Late Cretaceous (Late Turonian-Santonian) of the Zliv -Řídká Blana Quarry locality in the South Bohemian Basins in Central Europe. The locality is known for other well-preserved, charcoalified angiosperm reproductive structures (Heřmanová et al, 2011(Heřmanová et al, , 2017. The Zliv -Řídká Blana flora is a typical Late Cretaceous flora, dominated by smallsized fruits and seeds of angiosperms together with occasional small angiosperm flowers and scattered fragments of ferns.…”

Section: Introductionmentioning

confidence: 99%

A multicarpellate fruit from Late Cretaceous sediments of South Bohemia, Czech Republic

Heřmanová¹,

Čepičková

Kvaček³

et al. 2022

Palaeontol Electron

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The gynoecium of most angiosperms consists of two or more united carpels and syncarpy is generally considered a key innovation. Multicarpellate-syncarpous gynoecia, i.e., with more than five united carpels, are overall rare, probably because of developmental and functional constraints. Based on scanning electron microscopy (SEM) and X-ray computed tomography (microCT), we here describe a new fossil taxon, Covidifructus multicarpellatus, from the Late Cretaceous (Late Turonian-Santonian) of Southern Bohemia (Czech Republic). The new fossil taxon is based on a single syncarpous gynoecium (an immature fruit) consisting of 10 carpels, each containing a single seed; no other floral organs are preserved. The gynoecium morphology of C. multicarpellatus is highly complex and involves an enclosed, undifferentiated floral apex, an empty space in the centre of the ovary formed by the postgenital union of the distal parts of the carpels, an irregular apical closure of the ovary, and possibly an extra-gynoecial compitum. Similar gynoecium morphologies have evolved convergently in various angiosperm lineages and are directly linked with the special developmental (architectural) challenges of forming a functional syncarpous gynoecium with many carpels. Among extant angiosperms, C. multicarpellatus is most similar to Dillenia (Dilleniaceae). However, a systematic assignment based on gynoecium characters alone would involve a high level of uncertainty, even if the gynoecial features of C. multicarpellatus are rare among other angiosperms.

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Zlivifructus gen. nov., a new member of the Normapolles complex

Cited by 9 publications

References 17 publications

A myricaceous male inflorescence with pollen in situ from the middle Eocene of Europe

A myricaceous male inflorescence with pollen in situ from the middle Eocene of Europe

Micro-computed tomography for natural history specimens: a handbook of best practice protocols

A multicarpellate fruit from Late Cretaceous sediments of South Bohemia, Czech Republic

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