Journal
PALAEONTOLOGY
Volume 53, Issue -, Pages 753-759Publisher
WILEY
DOI: 10.1111/j.1475-4983.2010.00959.x
Keywords
catenulate swellings; Early Devonian fungi; Kryphiomyces catenulatus; fossil fungi; fungal spore; inter-fungal association; mycelium; Rhynie
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Funding
- National Science Foundation [EAR-0542170, EAR-0949947]
- Alexander von Humboldt Foundation [V-3.FLF-DEU/1064359]
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A new fossil microfungus, Kryphiomyces catenulatus gen. et sp. nov., occurs as an endobiotic mycelial thallus in a large spore of a glomeromycotan fungus from the Lower Devonian Rhynie chert. The thallus consists of branched (?pseudo-) septate hyphae with numerous catenulate swellings. Some hyphal tips produce spherical reproductive structures or propagules. Hyphal morphology in K. catenulatus is reminiscent of that in certain extant Hyphochytridiomycota, Chytridiomycota, and even Ascomycota, but specific diagnostic features that allow assignment of the fossil to modern groups are absent. The discovery of this interfungal association broadens our knowledge about the diversity of micro-fungi and their intricate associations in early continental ecosystems.
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