University of Leicester
Browse
Slater_et_al-2018-Palaeontology.pdf (13.68 MB)

Small carbonaceous fossils (SCFs) from the Terreneuvian (Lower Cambrian) of Baltica

Download (13.68 MB)
journal contribution
posted on 2018-03-01, 16:06 authored by Ben J. Slater, Thomas H. P. Harvey, Nicholas J. Butterfield
We describe a new assemblage of small carbonaceous fossils (SCFs) from diagenetically minimally altered clays and siltstones of Terreneuvian age from the Lontova and Voosi formations of Estonia, Lithuania and Russia. This is the first detailed account of an SCF assemblage from the Terreneuvian and includes a number of previously undocumented Cambrian organisms. Recognizably bilaterian-derived SCFs include abundant protoconodonts (total-group Chaetognatha), and distinctive cuticular spines of scalidophoran worms. Alongside these metazoan remains are a range of protistan-grade fossils, including Retiranus balticus gen. et sp. nov., a distinctive funnel-shaped or sheet-like problematicum characterized by terminal or marginal vesicles, and Lontohystrichosphaera grandis gen. et sp. nov., a large (100–550 μm) ornamented vesicular microfossil. Together these data offer a fundamentally enriched view of Terreneuvian life in the epicratonic seas of Baltica, from an episode where records of non-biomineralized life are currently sparse. Even so, the recovered assemblages contain a lower diversity of metazoans than SCF biotas from younger (Stage 4) Baltic successions that represent broadly equivalent environments, echoing the diversification signal recorded in the coeval shelly and trace-fossil records. Close comparison to the biostratigraphical signal from Fortunian small shelly fossils supports a late Fortunian age for most of the Lontova/Voosi succession, rather than a younger (wholly Stage 2) range.

History

Citation

Palaeontology, 2018, In press

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/School of Geography, Geology and the Environment

Version

  • VoR (Version of Record)

Published in

Palaeontology

Publisher

Wiley for Palaeontological Association

issn

0031-0239

eissn

1475-4983

Acceptance date

2017-12-08

Copyright date

2018

Available date

2018-03-01

Publisher version

http://onlinelibrary.wiley.com/doi/10.1111/pala.12350/abstract

Language

en

Usage metrics

    University of Leicester Publications

    Categories

    Keywords

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC