Links for Palaeobotanists 1

An annotated collection of pointers to information on palaeobotany
or to WWW resources which may be of use to palaeobotanists (with an Upper Triassic bias).

Z. Xu et al. (2022): Early Triassic super-greenhouse climate driven by vegetation collapse. In PDF, Europe PMC.
See also here.
Note figure 3, the climate graph.
"... Our reconstructions show that terrestrial vegetation collapse during the PTME, especially in tropical regions, resulted in an Earth system with low levels of organic carbon sequestration and chemical weathering, leading to limited drawdown of greenhouse gases. This led to a protracted period of extremely high surface temperatures, during which biotic recovery was delayed for millions of years. ..."

taz (a German newspaper; November 19, 2022): Versteinerte Welten:
�Wie ein Foto aus der Urzeit� (in German).
Paläobotaniker interessieren sich für die urzeitliche Pflanzenwelt. Die Fossilien von Blättern und Stämmen liefern Einblicke in untergegangene Welten.

S.R. Schachat 2022): Examining paleobotanical databases: Revisiting trends in angiosperm folivory and unlocking the paleoecological promise of propensity score matching and specification curve analysis. Free access, Front. Ecol. Evol., 10: 951547. doi: 10.3389/fevo.2022.951547.
"... Long-term trends in the fossil record of plants, encompassing their interactions with herbivores and with the environment, are of the utmost relevance for predicting global change
[...] in contrast to modern ecology and unlike various other paleontological disciplines, paleobotany has a limited history of �big data� meta-analyses.
[...] Here I demonstrate the importance of analytical best practices by applying them to a recent meta-analysis of fossil angiosperms. ..."

Ewan Wolff, Montana State University Geoscience Education Web Development Team: Advances in Paleontology.
Still available through the Internet Archive´s Wayback Machine.

! C. Strullu-Derrien et al. (2018): The origin and evolution of mycorrhizal symbioses: from palaeomycology to phylogenomics. Free access, New Phytologist, 220: 1012�1030.
! Note figure 1: Geological timescale with oldest known fossils. Left: Antiquity of genomic traits related to mycorrhizal evolution based on molecular clock estimates. Right: Oldest known fossils.
Figure 5: Simplified phylogenetic tree showing the minimum stratigraphic ranges of selected groups based on fossils (thick bars) and their minimum implied range extensions (thin lines).

G. Shi et al. (2022): Silicified cupulate seed-bearing structures from the Early Cretaceous of eastern Inner Mongolia, China: rethinking the corystosperm concept. Abstract, Journal of Systematic Palaeontology, 20.
"... together with information on other corystosperm ovulate organs from the Northern Hemisphere, significantly expands our understanding of this key group of extinct plants, suggests that the cupules of the Early Cretaceous and Triassic corystosperms are homologous, and raises critical questions about the definition and phylogenetic circumscription of the corystosperms ..."

Forest Products Laboratory, Madison, WI, U.S. Department of Agriculture: Wood handbook: wood as an engineering material. About the characteristics and availability of commercially important woods, the structure, physical properties and moisture relations of wood, the mechanical properties of wood, etc.
Available in PDF.

Z. Feng et al. (2022): Nurse logs: A common seedling strategy in the Permian Cathaysian Flora. In PDF, iScience, 25.
See also here.
"... We report seven coniferous nurse logs from lowermost to uppermost Permian strata of northern China that have been colonized by conifer and sphenophyllalean roots. These roots are associated with two types of arthropod coprolites and fungal remains. ..."

Sarah Johnson, MyComfortHaven.com:
Digital Photography Basics.
This digital photography guide will cover every aspect of digital photography to make digital photography easier, and help you improve your photography skills.

! R.D. Nance (2022): The supercontinent cycle and Earth's long-term climate. Open access, Annals of the New York Academy of Sciences, 1515: 33�49.
Note figure 1: Reconstruction of Pangea for the Late Triassic (at 200 Ma).
! Figure 7: Distribution of warm (greenhouse) and cool (icehouse) global climatic conditions for the past 1 Ga compared with times of supercontinent assembly and breakup for Rodinia, Pannotia, and Pangea.
Figure 9: Distribution of large igneous provinces (LIPs) throughout Earth history.
! Figure 10: Age and estimated volume of Phanerozoic large igneous provinces (LIPs) compared to genus extinction magnitude showing correlation between mass extinction events (peaks) and LIP emplacement.

! K.R. Moore et al. (2022): A review of microbial-environmental interactions recorded in Proterozoic carbonate-hosted chert. Open access, Geobiology.
"... we review the record of biosignatures preserved in peritidal Proterozoic chert and chert-hosting carbonate and discuss this record in the context of experimental and environmental studies that have begun to shed light on the roles that microbes and organic compounds may have played ..."

! R. López-Antoñanzas et al. (2022): Integrative Phylogenetics: Tools for Palaeontologists to Explore the Tree of Life. Open access, Biology, 11: 1185. https://doi.org/10.3390/ biology11081185.
"... The statistical techniques mentioned above have only begun to be applied to questions in palaeontology over the past decade but have found extensive applications in phylogenetic comparative analysis, quantitative genetics, and ecology. Complementary methodologies that combine morphological and molecular approaches can provide novel answers to broad evolutionary and deep-time questions ..."

! The World List of Cycads (produced under the auspices of the IUCN/SSC Cycad Specialist Group (CSG) and sponsored by Montgomery Botanical Center).
The World List of Cycads is a working list of known cycad species names with the primary goal of providing reliable information on the taxonomy of cycads.
! Don't miss the extensive Cycad Literature List.