Genus

Micrhystridium (Deflandre, 1937)

Selection of related publications
Uutela, A., Tynni, R. 1991. Ordovician acritarchs from the Rapla borehole, Estonia. Geological Survey of Finland. Bulletin 353, 1-135.
Smelror, M. 1991. Palynomorphs from the Cyrtograptus centrifugus graptolite zone (Early Wenlock, Silurian), Bornholm. Bulletin of the Geological Society of Denmark 39, 2, 83-89. DOI:10.37570/bgsd-1991-39-02
Volkova, N. A., Kiryanov, V. V., Piskun, L. V., Paškevičiene, L. T., Jankauskas, T. V. 1979. Microflora. Upper Precambrian and Cambrian paleontology of East-European platform, pp. 4-38. Nauka.
Volkova, N. A. 1969. Achritarchs of the North-west of the Russian Platform. Trudy GIN AN SSSR 206, 224-236. Nauka.
List of species
4. Micrhystridium digitatum Uutela et Tynni, 1991 | Idavere SubstagePirgu Stage
6. Micrhystridium eatonensis Downie, 1959 | Uhaku StagePorkuni Stage
7. Micrhystridium equispinosum Turner, 1984 | Keila StagePirgu Stage
8. Micrhystridium exiguum Rasul, 1979 | Lasnamägi StagePorkuni Stage
9. Micrhystridium fragile Deflandre, 1947 | Aseri StagePirgu Stage
11. Micrhystridium henryi Paris et Deunff, 1970 | Volkhov StageJuuru Stage
12. Micrhystridium lanatum Volkova, 1969 | Lower Cambrian (old nomenclature)
14. Micrhystridium lasnamaegiense Uutela et Tynni, 1991 | Lasnamägi StageKukruse Stage
15. Micrhystridium minimum Uutela et Tynni, 1991 | Jõhvi SubstageJuuru Stage
16. Micrhystridium nannacanthum Deflandre, 1945 | Volkhov StageJuuru Stage
18. Micrhystridium notatum Volkova, 1969 | Middle Cambrian (old nomenclature)
19. Micrhystridium obscurum Volkova, 1969 | Middle Cambrian (old nomenclature)
20. Micrhystridium parinconspicuum Deflandre, 1942 | Volkhov StagePorkuni Stage
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Classification
Organism groupBiota
Protista
Acritarcha
SupergenusAcanthosphaera
GenusAcanthodiacrodium
Acrosphaeridium
Actinotodissus
Actipillion
Akomachra
Ammonidium
Aranidium
Arbusculidium
Archaeodiscina
Archaeopsophosphaera
Archaeosacculina
Arcosphaeridium
Aremoricanium
Arkonia
Aryballomorpha
Asteridium
Athabascaella
Axisphaeridium
Bacisphaeridium
Baltisphaeridium
Buchinia
Buedingiisphaeridium
Caldariola
Calyxiella
Carinatosphaeridium
Celtiberium
Ceratophyton
Cheleutochroa
Chlamydosphaeridia
Comasphaeridium
Coronitesta
Coryphidium
Costatilobus
Cristallinium
Cycloposphaeridium
Cymatiogalea
Cymatiosphaera
Dactylofusa
Dasydiacrodium
Dateriocradus
Deunffia
Dicommopalla
Dictyosphaeridium
Dictyotidium
Diexallophasis
Dilatisphaera
Domasia
Dominopolia
Dorsennidium
Elektroriskos
Elenia
Eliasum
Estiastra
Evittia
Excultibrachium
Ferromia
Filisphaeridium
Fimbriaglomerella
Florisphaeridium
Globosphaeridium
Goniosphaeridium
Gorgonisphaeridium
Granomarginata
Gyalorhethium
Hapsidopalla
Helosphaeridium
Impluviculus
Izhoria
Joehvisphaera
Kildinella
Kundasphaera
Labyrinthosphaeridium
Lacunosphaeridium
Ladogella
Leiofusa
Leiomarginata
Leiosphaeridia
Leiovalia
Liepaina
Liliosphaeridium
Loeblichia
Lophominuscula
Lophosphaeridium
Lunulidia
Lusatia
Margoporina
Metaleiofusa
Micrhystridium
Speciesacerbum
brevispinosum
curvatum
digitatum
dissimilare
eatonensis
equispinosum
exiguum
fragile
granulatum
henryi
heterospinosum
inconspicuum
lanatum
lanceolatum
lasnamaegiense
lubomlense
minimum
nannacanthum
nanodigitatum
notatum
obscurum
oligum
parinconspicuum
parvulum
parvum
polygonale
prolixum
punctatum
shinetonensis
spinosum
stellatum
stylosum
taeniosum
uncinatum
varipinnosum
varispinosum
villosum
GenusMicroconcentrica
Multiplicisphaeridium
Nanocyclopia
Navifusa
Nellia
Nexosarium
Nodosus
Nothooidium
Ooidium
Oppilatala
Ordovicidium
Orthosphaeridium
Ovulum
Pachysphaeridium
Palaeocladophora
Palaeomonostroma
Passalosphaera
Petaloferidium
Peteinosphaeridium
Pheoclosterium
Pirea
Podolina
Poikilofusa
Polyancistrodorus
Polyedryxium
Polygonium
Primoflagella
Primophlagella
Priscogaleata
Priscotheca
Protosphaeridium
Pseudotasmanites
Pterospermella
Pterospermopsis
Pulvinosphaeridium
Raphesphaera
Raplasphaera
Revinotesta
Rhopaliophora
Saharidia
Salopidium
Schismatosphaeridium
Schizodiacrodium
Skiagia
Solisphaeridium
Spumiosa
Stellechinatum
Stelliferidium
Stelomorpha
Stictosoma
Striatotheca
Synsphaeridium
Taeniosphaeridium
Tasmanites
Timofeevia
Tranvikium
Trichosphaeridium
Trunculumarium
Tuberculum
Tunisphaeridium
Tylotopalla
Tynnia
Veryhachium
Vesiculosphaera
Villosacapsula
Visbysphaera
Vogtlandia
Volkovia
Vulcanisphaera
Winwaloeusia
Zinkovioides
SubgenusBrochopsophosphaera
Eupoikilofusa
SpeciesAmpullula
Leiodiscina