Table 1.

Synopsis of fungal taxa and fungus-like organisms described from the Rhynie chert.

taxon	suggested systematic affinities	occurrence/substrate	references
fungi
Cultoraquaticus trewinii Strullu-Derrien	Chytridiomycota	epibiotic on large, spheroidal structures of uncertain affinity	[97]
Globicultrix nugax M. Krings, Dotzler & T.N. Taylor	Chytridiomycota	endobiotic in large fungal (probably glomeromycotinan) spores	[92]
Glomites rhyniensis T.N. Taylor, Remy, Hass & Kerp	Mucoromycota (Glomeromycotina)	in axes of Ag. majus	[35,54,55]
Glomites sporocarpoides Karatygin, Snigirevskaya, K. Demchenko & Zdebska	Mucoromycota (Glomeromycotina)	in axes of R. gwynne-vaughanii and Ag. majus	[68]
Helmutella devonica M. Krings & T.N. Taylor	Mucoromycota incertae sedis	free-floating in chert matrix	[48]
Illmanomyces corniger M. Krings, T.N. Taylor	Chytridiomycota	epibiotic on fungal (probably glomeromycotinan) spores	[91]
Krispiromyces discoides T.N. Taylor, Hass & Remy	Chytridiomycota	epibiotic on Palaeo. cranii	[93]
Kryphiomyces catenulatus M. Krings & T.N. Taylor	inconclusive, perhaps Chytridiomycota	endobiotic in large fungal (probably glomeromycotinan) spores	[87]
Lyonomyces pyriformis T.N. Taylor, Hass & Remy	Chytridiomycota	epibiotic on Palaeo. cranii	[93]
Milleromyces rhyniensis T.N. Taylor, Hass & Remy	Chytridiomycota	endobiotic in Palaeo. cranii	[93]
Mycocarpon rhyniense M. Krings, T.N. Taylor, E.L. Taylor, H. Kerp & Dotzler	Mucoromycota incertae sedis	free-floating in chert matrix	[47]
Mycokidstonia sphaerialoides D. Pons et Locq.	Mucoromycota (Glomeromycotina) see 45	free-floating in chert matrix	[109]
Palaeoendogone gwynne-vaughaniae Strullu-Derrien & Strullu	Mucoromycota (Mucoromycotina)	in rhizomes of H. lignieri	[71]
Palaeoglomus boullardii Strullu-Derrien & Strullu	Mucoromycota (Glomeromycotina)	in aerial axes of H. lignieri	[71]
Palaeomyces agglomeratus Kidst. & W.H. Lang	Mucoromycota incertae sedis	in aerial axes of R. gwynne-vaughanii and surrounding chert matrix	[9]
Palaeomyces asteroxyli Kidst. & W.H. Lang	Mucoromycota incertae sedis	in intact and decayed tissue of As. mackiei	[9]
Palaeomyces gordonii Kidst. & W.H. Lang (incl. P. gordonii var. major Kidst. & W.H. Lang)	Mucoromycota incertae sedis	in axes of As. mackiei, free-floating in chert matrix	[9]
Palaeomyces horneae Kidst. & W.H. Lang	Mucoromycota incertae sedis	in rhizomes and aerial axes of H. lignieri	[9]
Palaeomyces simpsonii Kidst. & W.H. Lang	Mucoromycota incertae sedis	in decayed axes of R. gwynne-vaughanii	[9]
Palaeomyces vestitus Kidst. & W.H. Lang	see Z. vestitus
Palaeozoosporites renaultii Strullu-Derrien	zoosporic Fungi incertae sedis, perhaps Blastocladiomycota	endobiotic in rhizomes of As. mackiei	[77]
Paleoblastocladia milleri Remy, T.N. Taylor & Hass	Blastocladiomycota	epibiotic on partially degraded axes of Ag. majus	[82]
Paleopyrenomycites devonicus T.N. Taylor, Hass, Kerp, M. Krings & Hanlin	Ascomycota	in aerial axes and lateral portions of As. mackiei	[78,79]
Perexiflasca tayloriana M. Krings, C.J. Harper & E.L. Taylor	inconclusive, perhaps Chytridiomycota	in intact and degraded land plant tissue, on fungal spores and hyphae, free-floating in chert matrix	this paper
Scepasmatocarpion fenestrulatum M. Krings & T.N. Taylor	inconclusive, perhaps Mucoromycota or Ascomycota	free-floating in microbial mats	[52]
Scutellosporites devonicus Dotzler, M. Krings, T.N. Taylor & Agerer	Mucoromycota (Glomeromycotina)	in aerial axes of As. mackiei	[42]
Trewinomyces annulifer M. Krings, T.N. Taylor & H. Martin	inconclusive, perhaps Chytridiomycota or Blastocladiomycota	epibiotic on partially degraded land plant axes	[85]
Zwergimyces vestitus (Kidst. & W.H. Lang) M. Krings & T.N. Taylor	Mucoromycota incertae sedis	in intact and degraded land plant tissues, in chert litter layers	[40,46]
Lichen-like associations
Winfrenatia reticulata T.N. Taylor, Hass & Kerp	mycobiont: Mucoromycota photobiont: Cyanobacteria	inconclusive, probably on hard terrestrial substrate	[99,100]
Peronosporomycetes
Frankbaronia polyspora M. Krings, T.N. Taylor, E.L. Taylor, Kerp, Hass, Dotzler & C.J. Harper	Peronosporomycetes (Oomycota)	free-floating in microbial mats and litter layers	[20]
Frankbaronia velata M. Krings, T.N. Taylor, Dotzler & C.J. Harper	Peronosporomycetes (Oomycota)	free-floating in microbial mats	[21]
Hassiella monospora T.N. Taylor, M. Krings & Kerp	Peronosporomycetes (Oomycota)	free-floating in chert matrix	[19]
Nematophytes
Nematophyton taiti Kidst. & W.H. Lang	Nematophyta	inconclusive, probably on hard substrate	[9]
Nematoplexus rhyniensis Lyon	Nematophyta	inconclusive, probably on hard substrate	[22]