Evidence of fossil Peronosporomycetes has been slow to accumulate. In this review various fossils historically assigmed to the Peronosporomycets are dicussed briefly and an explanation is provided as to why the fossil record of this grouop has remained inconsistent. In recent year there has been several new reports of fossil peronosporomycetes based on structurally preserved oogonium-antheridium complexes from Derovonian and Carboniferous rocks that demonstrate the existence of these organisms as fossils and refute the long-standing assumption that they are too delicate to be preserved. Among these are serral tyoes characterized by oogonial surface members of the group. To date at last three groups of fossil vascular plants (i.e. lycophytes, ferns and seed ferns) are known to host peronosporomycetes aas endophytes; however only one form has been identified as a parasite.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3852/10-278 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Apparent timescaling of fossil diversification rates is caused by sampling bias.
Curr Biol
January 2025
Department of Earth Sciences, University of Oxford, Oxford OX1 3AN, UK.
Negative scaling relationships between both speciation and extinction rates, on the one hand, and the age or duration of organismal groups on the other, are pervasive and recovered in both molecular phylogenetic and fossil time series. The agreement between molecular and fossil data hints at a universal cause and potentially at incongruence between micro- and macroevolution. However, the existence of negative rate scaling in fossil time series has not undergone the same level of scrutiny as in molecular data.
View Article and Find Full Text PDFAccounting for sampling heterogeneity suggests a low paleolatitude origin for dinosaurs.
Curr Biol
January 2025
Department of Earth Sciences, University College London, Gower Street, London WC1E 6BT, UK.
Dinosaurs dominated Mesozoic terrestrial ecosystems for ∼160 million years, but their biogeographic origin remains poorly understood. The earliest unequivocal dinosaur fossils appear in the Carnian (∼230 Ma) of southern South America and Africa, leading most authors to propose southwestern Gondwana as the likely center of origin. However, the high taxonomic and morphological diversity of these earliest assemblages suggests a more ancient evolutionary history that is currently unsampled.
View Article and Find Full Text PDFNew modern and Pleistocene fossil micromammal assemblages from Swartkrans, South Africa: Paleobiodiversity, taphonomic, and environmental context.
J Hum Evol
January 2025
Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg WITS, 2050, South Africa; Department of Anthropology, University of Wisconsin, Madison, WI 53706, USA.
The oldest deposit at the hominin-bearing cave of Swartkrans, South Africa, is the Lower Bank of Member 1, dated to ca. 2.2 million years ago.
View Article and Find Full Text PDFInsights into stem Batomorphii: A new holomorphic ray (Chondrichthyes, Elasmobranchii) from the upper Jurassic of Germany.
PLoS One
January 2025
Department of Palaeontology, Faculty of Earth Sciences, Geography and Astronomy, Evolutionary Research Group, University of Vienna, Vienna, Austria.
The Late Jurassic fossil deposits of southern Germany, collectively known as the 'Solnhofen Archipelago', are one of the world's most important sources of Mesozoic vertebrates. Complete skeletons of cartilaginous fishes (Chondrichthyes), whose skeletal remains are rare in the fossil record and therefore all the more valuable, are represented, among others, by exceptionally well-preserved rays (superorder Batomorphii). Despite their potential for research in several areas, including taxonomy, morphology, ecology, and phylogeny, the number of studies on these chondrichthyans is still very limited.
View Article and Find Full Text PDFThe transition to flying insects: lessons from evo-devo and fossils.
Curr Opin Insect Sci
January 2025
Department of Zoology, Faculty of Science, Charles University, Viničná 7, CZ-128 00 Praha 2, Czech Republic. Electronic address:
Insects are the only arthropod group to achieve powered flight, which facilitated their explosive radiation on land. It remains a significant challenge to understand the evolutionary transition from non-flying (apterygote) to flying (pterygote) insects due to the large gap in the fossil record. Under such situation, ontogenic information has historically been used to compensate fossil evidence.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!