Acritarcha

Acritarchs
Organism group Acritarcha Evitt, 1963

et: akritarhid; fi: akritarkkit; sv: acritarcher;

Taxon ID: 317 / 2015-11-24
Belongs to: Protista
Contains: Acanthodiacrodium | Acrosphaeridium | Actipillion | Akomachra | Ammonidium | Arbusculidium | Archaeodiscina | Arcosphaeridium | Aremoricanium | Arkonia | Asteridium | Athabascaella | Axisphaeridium | Bacisphaeridium | Baltisphaeridium | Buedingiisphaeridium | Caldariola | Calyxiella | Celtiberium | Ceratophyton | Cheleutochroa | Chlamydosphaeridia | Comasphaeridium | Coronitesta | Coryphidium | Costatilobus | Cristallinium | Cycloposphaeridium | Cymatiogalea | Cymatiosphaera | Dactylofusa | Dasydiacrodium | Dicommopalla | Dictyosphaeridium | Dictyotidium | Diexallophasis | Dilatisphaera | Domasia | Elektroriskos | Elenia | Eliasum | Estiastra | Excultibrachium | Fimbriaglomerella | Florisphaeridium | Globosphaeridium | Goniosphaeridium | Gorgonisphaeridium | Gyalorhethium | Hapsidopalla | Helosphaeridium | Impluviculus | Izhoria | Joehvisphaera | Kundasphaera | Labyrinthosphaeridium | Lacunosphaeridium | Ladogella | Leiofusa | Leiosphaeridia | Leiovalia | Liepaina | Liliosphaeridium | Lophosphaeridium | Lunulidia | Micrhystridium | Multiplicisphaeridium | Nanocyclopia | Nodosus | Oppilatala | Ordovicidium | Orthosphaeridium | Ovulum | Palaeocladophora | Palaeomonostroma | Peteinosphaeridium | Pheoclosterium | Pirea | Poikilofusa | Polyancistrodorus | Polyedryxium | Polygonium | Priscogaleata | Priscotheca | Pterospermella | Pterospermopsis | Pulvinosphaeridium | Raplasphaera | Revinotesta | Rhopaliophora | Saharidia | Salopidium | Skiagia | Solisphaeridium | Stellechinatum | Stelliferidium | Taeniosphaeridium | Tasmanites | Timofeevia | Tranvikium | Trichosphaeridium | Tunisphaeridium | Tylotopalla | Veryhachium | Villosacapsula | Visbysphaera | Volkovia | Vulcanisphaera | Winwaloeusia
Stratigraphic range: Archean
Baltoscandian species (in database): 419

List of Baltoscandian species (may not be complete, up to 1000 species displayed)

  1. Acanthodiacrodium angustum |
  2. Acanthodiacrodium formosum |
  3. Acanthodiacrodium ovale |
  4. Acanthodiacrodium timofeevii |
  5. Acanthodiacrodium tremadocum |
  6. Acrosphaeridium densum | Lasnamägi Stage → Keila Stage
  7. Acrosphaeridium esthonicum | Rakvere Stage → Pirgu Stage
  8. Acrosphaeridium reticulatum | Keila Stage
  9. Actipillion druggii | Nabala Stage → Pirgu Stage
  10. Akomachra ovula | Kunda Stage → Uhaku Stage
  11. Ammonidium ludlovensis |
  12. Arbusculidium destombesii |
  13. Archaeodiscina umbonulata | Cambrian
  14. Arcosphaeridium diversispinosum | Rakvere Stage → Pirgu Stage
  15. Arcosphaeridium poriferum | Pirgu Stage
  16. Aremoricanium deflandrei | Aseri Stage → Uhaku Stage
  17. Aremoricanium rigaudae | Aseri Stage → Idavere Substage
  18. Aremoricanium squarrosum | Jõhvi Substage → Pirgu Stage
  19. Arkonia concava | Lasnamägi Stage
  20. Arkonia semigranulata | Keila Stage
  21. Asteridium tornatum |
  22. Athabascaella penika | Tremadocian
  23. Axisphaeridium timofeevi | Uhaku Stage → Idavere Substage
  24. Axisphaeridium tricolumnelare | Keila Stage → Pirgu Stage
  25. Bacisphaeridium bacifer | Pirgu Stage
  26. Bacisphaeridium granulatum | Pirgu Stage
  27. Bacisphaeridium saetosum | Pirgu Stage
  28. Baltisphaeridium accinctum | Volkhov Stage → Kukruse Stage
  29. Baltisphaeridium aliquigranulum | Keila Stage → Pirgu Stage
  30. Baltisphaeridium annelieae | Kunda Stage → Kukruse Stage
  31. Baltisphaeridium bramkae | Aseri Stage → Pirgu Stage
  32. Baltisphaeridium breviciliatum | Juuru Stage
  33. Baltisphaeridium brevispinosum | Volkhov Stage → Lasnamägi Stage
  34. Baltisphaeridium brevituberculatum | Volkhov Stage → Uhaku Stage
  35. Baltisphaeridium bystrentos | Lasnamägi Stage → Porkuni Stage
  36. Baltisphaeridium calicispinae |
  37. Baltisphaeridium capillatum | Juuru Stage
  38. Baltisphaeridium castaneiforme | Volkhov Stage
  39. Baltisphaeridium christoferii |
  40. Baltisphaeridium cirsinum | Volkhov Stage → Uhaku Stage
  41. Baltisphaeridium constrictum | Uhaku Stage
  42. Baltisphaeridium dasos | Lasnamägi Stage → Pirgu Stage
  43. Baltisphaeridium digitaliforme | Lasnamägi Stage → Rakvere Stage
  44. Baltisphaeridium dispar | Uhaku Stage → Vormsi Stage
  45. Baltisphaeridium dubium | Cambrian
  46. Baltisphaeridium eisenackianum | Kunda Stage → Keila Stage
  47. Baltisphaeridium esthonicum | Volkhov Stage → Lasnamägi Stage
  48. Baltisphaeridium filosum |
  49. Baltisphaeridium flexuosum |
  50. Baltisphaeridium globosum | Nabala Stage
  51. Baltisphaeridium hamatum | Kunda Stage → Uhaku Stage
  52. Baltisphaeridium heinzelinii | Rakvere Stage
  53. Baltisphaeridium hirsutoides | Volkhov Stage → Juuru Stage
  54. Baltisphaeridium implicatum | Cambrian
  55. Baltisphaeridium ingerae | Volkhov Stage → Kukruse Stage
  56. Baltisphaeridium kaurannei | Volkhov Stage → Kunda Stage
  57. Baltisphaeridium klabavense | Jõhvi Substage → Keila Stage
  58. Baltisphaeridium latiradiatum | Kunda Stage → Keila Stage
  59. Baltisphaeridium longispinosum | Kunda Stage → Pirgu Stage
  60. Baltisphaeridium longispinosum longispinosum | Volkhov Stage → Pirgu Stage
  61. Baltisphaeridium maius | Vormsi Stage
  62. Baltisphaeridium microspinosum | Volkhov Stage → Pirgu Stage
  63. Baltisphaeridium multiechinatum | Volkhov Stage → Idavere Substage
  64. Baltisphaeridium multipilosum | Ordovician → Silurian
  65. Baltisphaeridium nannium | Kunda Stage → lower Silurian
  66. Baltisphaeridium oejlemyrensis |
  67. Baltisphaeridium oligopsakium | Kunda Stage → Vormsi Stage
  68. Baltisphaeridium onniense | Jõhvi Substage → Pirgu Stage
  69. Baltisphaeridium pachyacanthum | Ordovician
  70. Baltisphaeridium parvigranosum | Lasnamägi Stage → Pirgu Stage
  71. Baltisphaeridium parvulisidereum | Volkhov Stage → Kukruse Stage
  72. Baltisphaeridium pauciverrucosum | Volkhov Stage → Rakvere Stage
  73. Baltisphaeridium perclarum | Jõhvi Substage → Nabala Stage
  74. Baltisphaeridium plicatispinae | Ordovician
  75. Baltisphaeridium pseudocalicispinum | Volkhov Stage → Juuru Stage
  76. Baltisphaeridium pseudofaveolatum | Lower Cambrian (old nomenclature) → Middle Cambrian (old nomenclature)
  77. Baltisphaeridium pustulatum | Aseri Stage → Vormsi Stage
  78. Baltisphaeridium ramiferum | Rakvere Stage → Nabala Stage
  79. Baltisphaeridium stipaticum | Cambrian
  80. Baltisphaeridium trabeculaespinae | Idavere Substage → Pirgu Stage
  81. Baltisphaeridium tranvikensis | Volkhov Stage → Uhaku Stage
  82. Baltisphaeridium trichoporum | Volkhov Stage → Idavere Substage
  83. Baltisphaeridium trophirhapium | Kukruse Stage → Oandu Stage
  84. Baltisphaeridium tuberculatum | Cambrian
  85. Baltisphaeridium verrucatum | Kunda Stage → Jõhvi Substage
  86. Buedingiisphaeridium balticum | Kunda Stage → Pirgu Stage
  87. Buedingiisphaeridium guttiferum | Keila Stage → Pirgu Stage
  88. Buedingiisphaeridium tremadocum |
  89. Caldariola glabra | Upper Cambrian (old nomenclature)
  90. Calyxiella izhoriensis |
  91. Ceratophyton groetlingboensis |
  92. Cheleutochroa diaphorosa | Keila Stage
  93. Cheleutochroa differta | Keila Stage → Oandu Stage
  94. Cheleutochroa elegans | Pirgu Stage
  95. Cheleutochroa gymnobrachiata | Aseri Stage → Pirgu Stage
  96. Cheleutochroa oculata | Idavere Substage → Pirgu Stage
  97. Cheleutochroa ramosa | Pirgu Stage
  98. Cheleutochroa rugosa | Keila Stage
  99. Cheleutochroa tuberculosa | Keila Stage
  100. Cheleutochroa venosa | Jõhvi Substage → Vormsi Stage
  101. Cheleutochroa venosior | Jõhvi Substage → Keila Stage
  102. Comasphaeridium bacillum | Kunda Stage → Uhaku Stage
  103. Comasphaeridium brachyspinosum |
  104. Comasphaeridium longispinosum |
  105. Comasphaeridium strigosum |
  106. Coronitesta bicornis | Rakvere Stage
  107. Coronitesta raplaensis | Lasnamägi Stage → Pirgu Stage
  108. Coronitesta triangularis | Keila Stage
  109. Coryphidium elegans | Tremadocian
  110. Costatilobus bulbosus | Volkhov Stage → Kukruse Stage
  111. Costatilobus grandispinosus | Keila Stage → Nabala Stage
  112. Costatilobus trifidus | Keila Stage
  113. Cristallinium cambriense | Upper Cambrian (old nomenclature)
  114. Cristallinium randomense | Upper Cambrian (old nomenclature)
  115. Cycloposphaeridium auriculatum | Volkhov Stage → Aseri Stage
  116. Cymatiogalea aspergillum |
  117. Cymatiogalea bellicosa |
  118. Cymatiogalea cristata |
  119. Cymatiogalea cuvillieri |
  120. Cymatiogalea deunffii |
  121. Cymatiogalea messaoudensis |
  122. Cymatiogalea multarea | Upper Cambrian (old nomenclature) → Tremadocian
  123. Cymatiogalea velifera | Upper Cambrian (old nomenclature) → Hunneberg Stage
  124. Cymatiogalea virgulta | Upper Cambrian (old nomenclature)
  125. Cymatiosphaera aseriensis | Aseri Stage
  126. Cymatiosphaera baarstadi | Cambrian
  127. Cymatiosphaera capsulara |
  128. Cymatiosphaera crispa | Keila Stage → Rakvere Stage
  129. Cymatiosphaera keilaensis | Keila Stage → Rakvere Stage
  130. Cymatiosphaera latimurata | Keila Stage
  131. Cymatiosphaera minima | Jõhvi Substage
  132. Cymatiosphaera nabalaensis | Keila Stage → Pirgu Stage
  133. Cymatiosphaera octoplana |
  134. Cymatiosphaera pavimenta | Kunda Stage → Porkuni Stage
  135. Cymatiosphaera postii |
  136. Cymatiosphaera rakverensis | Rakvere Stage
  137. Cymatiosphaera serrata | Pirgu Stage
  138. Dactylofusa cirritus | Volkhov Stage → Idavere Substage
  139. Dactylofusa lasnamaegiensis | Lasnamägi Stage
  140. Dasydiacrodium caudatum | Upper Cambrian (old nomenclature)
  141. Dasydiacrodium obsonum | Upper Cambrian (old nomenclature)
  142. Dasydiacrodium setuensis | Upper Cambrian (old nomenclature)
  143. Dicommopalla macadamii | Uhaku Stage → Pirgu Stage
  144. Dictyosphaeridium reticulatum | Aseri Stage → Pirgu Stage
  145. Dictyotidium microreticulatum |
  146. Dictyotidium multipolygonatum | Idavere Substage → Juuru Stage
  147. Dictyotidium ovatum | Pirgu Stage
  148. Dictyotidium torosum | Pirgu Stage
  149. Dictyotidium venosum | Rakvere Stage
  150. Diexallophasis denticulata |
  151. Diexallophasis sanpetrensis |
  152. Diexallophasis simplex |
  153. Dilatisphaera complicata | Lasnamägi Stage → Uhaku Stage
  154. Dilatisphaera nanofurcata | Volkhov Stage → Idavere Substage
  155. Dilatisphaera tubulifera | Lasnamägi Stage → Pirgu Stage
  156. Domasia elongata |
  157. Domasia spinosa | Vormsi Stage
  158. Domasia trispinosa |
  159. Elektroriskos cerinus |
  160. Elektroriskos flexuosus |
  161. Eliasum microgranulatum |
  162. Estiastra minima |
  163. Excultibrachium concinnum | Lasnamägi Stage → Pirgu Stage
  164. Fimbriaglomerella membranacea |
  165. Fimbriaglomerella minuta |
  166. Florisphaeridium abruptum | Lasnamägi Stage
  167. Florisphaeridium circulatum | Pirgu Stage
  168. Florisphaeridium densum | Keila Stage
  169. Globosphaeridium cerinum | Cambrian
  170. Goniosphaeridium cantabricum | Pirgu Stage
  171. Goniosphaeridium connectum |
  172. Goniosphaeridium mochtiensis | Kunda Stage → Lasnamägi Stage
  173. Goniosphaeridium oligospinosum | Pirgu Stage
  174. Goniosphaeridium parvispinosum | Kunda Stage
  175. Goniosphaeridium pellicidum | Kunda Stage → Juuru Stage
  176. Goniosphaeridium polygonale | Lower Ordovician → lower Silurian
  177. Goniosphaeridium polygonale polyacanthum | Volkhov Stage → Keila Stage
  178. Goniosphaeridium polygonale rugosum | Vormsi Stage → Pirgu Stage
  179. Goniosphaeridium splendens | Volkhov Stage → Juuru Stage
  180. Goniosphaeridium uncinatum | Ordovician → Silurian
  181. Goniosphaeridium volkovae |
  182. Gorgonisphaeridium antiquum | Volkhov Stage → Juuru Stage
  183. Gorgonisphaeridium spiralispinosum | Kunda Stage → Pirgu Stage
  184. Gyalorhethium angustispinosum | Kukruse Stage → Pirgu Stage
  185. Hapsidopalla multifida | Rakvere Stage → Juuru Stage
  186. Helosphaeridium varispinosum | Uhaku Stage → Porkuni Stage
  187. Impluviculus multiangularis |
  188. Izhoria angulata |
  189. Joehvisphaera capillata | Jõhvi Substage
  190. Kundasphaera lacunosa | Volkhov Stage → Porkuni Stage
  191. Labyrinthosphaeridium asperum | Keila Stage
  192. Labyrinthosphaeridium curvatum | Jõhvi Substage → Vormsi Stage
  193. Labyrinthosphaeridium cymoides | Keila Stage → Vormsi Stage
  194. Labyrinthosphaeridium restrictum | Keila Stage
  195. Lacunosphaeridium granosum | Nabala Stage
  196. Lacunosphaeridium spinosum | Idavere Substage → Keila Stage
  197. Ladogella rotundiformis |
  198. Leiofusa granulacutis | Uhaku Stage → Pirgu Stage
  199. Leiofusa granulacutis quincunx | Pirgu Stage → Porkuni Stage
  200. Leiofusa iugosa | Jõhvi Substage
  201. Leiofusa obliquipunctata | Vormsi Stage → Pirgu Stage
  202. Leiofusa stoumonensis | Upper Cambrian (old nomenclature)
  203. Leiofusa subcircularis | Lasnamägi Stage
  204. Leiofusa tumida |
  205. Leiosphaeridia fumiana |
  206. Leiosphaeridia granulata |
  207. Leiosphaeridia gregalis |
  208. Leiosphaeridia keilaensis | Kukruse Stage → Rakvere Stage
  209. Leiosphaeridia laevigata |
  210. Leiosphaeridia tenuissima |
  211. Leiosphaeridia voigtii |
  212. Leiosphaeridia wenlockia |
  213. Leiovalia similis | Volkhov Stage → Juuru Stage
  214. Leiovalia tenera |
  215. Liepaina rigida | Cambrian
  216. Liliosphaeridium kaljoi | Volkhov Stage → Kunda Stage
  217. Lophosphaeridium aculeatum | Uhaku Stage → Porkuni Stage
  218. Lophosphaeridium aequicuspidatum | Kunda Stage → Keila Stage
  219. Lophosphaeridium bottnicum |
  220. Lophosphaeridium citrinipeltatum | Volkhov Stage → Juuru Stage
  221. Lophosphaeridium disparipelliculum | Lasnamägi Stage → Pirgu Stage
  222. Lophosphaeridium granulosum | Juuru Stage
  223. Lophosphaeridium latviense |
  224. Lophosphaeridium papillatum | Volkhov Stage → Wenlock
  225. Lophosphaeridium pilosum | Volkhov Stage → Pirgu Stage
  226. Lophosphaeridium regulare | Pirgu Stage
  227. Lophosphaeridium tynnii |
  228. Lophosphaeridium variabile |
  229. Lophosphaeridium zaleskyi |
  230. Lunulidia lunula |
  231. Micrhystridium acerbum | Aseri Stage
  232. Micrhystridium brevispinosum | Volkhov Stage → Pirgu Stage
  233. Micrhystridium curvatum | Pirgu Stage
  234. Micrhystridium digitatum | Idavere Substage → Pirgu Stage
  235. Micrhystridium dissimilare |
  236. Micrhystridium eatonensis | Uhaku Stage → Porkuni Stage
  237. Micrhystridium equispinosum | Keila Stage → Pirgu Stage
  238. Micrhystridium exiguum | Lasnamägi Stage → Porkuni Stage
  239. Micrhystridium fragile | Aseri Stage → Pirgu Stage
  240. Micrhystridium granulatum | Aseri Stage
  241. Micrhystridium henryi | Volkhov Stage → Juuru Stage
  242. Micrhystridium inconspicuum aremoricanum | Uhaku Stage → Keila Stage
  243. Micrhystridium lanatum |
  244. Micrhystridium lanceolatum |
  245. Micrhystridium lasnamaegiense | Lasnamägi Stage → Kukruse Stage
  246. Micrhystridium minimum | Jõhvi Substage → Juuru Stage
  247. Micrhystridium nannacanthum | Volkhov Stage → Juuru Stage
  248. Micrhystridium nanodigitatum | Lasnamägi Stage
  249. Micrhystridium notatum |
  250. Micrhystridium parinconspicuum | Volkhov Stage → Porkuni Stage
  251. Micrhystridium parvulum | Keila Stage → Juuru Stage
  252. Micrhystridium polygonale | Kunda Stage
  253. Micrhystridium punctatum | Kukruse Stage → Pirgu Stage
  254. Micrhystridium shinetonensis | Lasnamägi Stage → Pirgu Stage
  255. Micrhystridium spinosum |
  256. Micrhystridium stellatum | Kunda Stage → Juuru Stage
  257. Micrhystridium stellatum latispinosum | Lasnamägi Stage → Pirgu Stage
  258. Micrhystridium stellatum salopiense | Keila Stage → Juuru Stage
  259. Micrhystridium taeniosum | Lasnamägi Stage → Juuru Stage
  260. Micrhystridium uncinatum |
  261. Micrhystridium varipinnosum | Volkhov Stage → Porkuni Stage
  262. Micrhystridium varispinosum | Kukruse Stage → Nabala Stage
  263. Multiplicisphaeridium actinospinosum | Aseri Stage
  264. Multiplicisphaeridium alloiteaui | Volkhov Stage → Pirgu Stage
  265. Multiplicisphaeridium arbusculum |
  266. Multiplicisphaeridium bifurcatum | Volkhov Stage → Juuru Stage
  267. Multiplicisphaeridium bipalmatum | Aseri Stage → Juuru Stage
  268. Multiplicisphaeridium borracherosum | Pirgu Stage → Porkuni Stage
  269. Multiplicisphaeridium borracherosum regulare | Pirgu Stage
  270. Multiplicisphaeridium cacteum | Volkhov Stage → Lasnamägi Stage
  271. Multiplicisphaeridium campanulum | Cambrian
  272. Multiplicisphaeridium caperoradiolum | Idavere Substage → Pirgu Stage
  273. Multiplicisphaeridium cervinacornua |
  274. Multiplicisphaeridium cladum |
  275. Multiplicisphaeridium constipatum | Cambrian
  276. Multiplicisphaeridium cornigerum | Vormsi Stage
  277. Multiplicisphaeridium cymoides | Keila Stage
  278. Multiplicisphaeridium dendroideum |
  279. Multiplicisphaeridium digitatum | Vormsi Stage → Pirgu Stage
  280. Multiplicisphaeridium diversispinosum | Uhaku Stage → Pirgu Stage
  281. Multiplicisphaeridium ferum | Kunda Stage → Pirgu Stage
  282. Multiplicisphaeridium fisherii | Idavere Substage → Pirgu Stage
  283. Multiplicisphaeridium fissile | Volkhov Stage → Pirgu Stage
  284. Multiplicisphaeridium forquiferum | Rakvere Stage → Porkuni Stage
  285. Multiplicisphaeridium gotlandicum | Aseri Stage → Keila Stage
  286. Multiplicisphaeridium irregulare | Kunda Stage → Juuru Stage
  287. Multiplicisphaeridium lichenoides | Kukruse Stage → Keila Stage
  288. Multiplicisphaeridium martae | Volkhov Stage → Juuru Stage
  289. Multiplicisphaeridium micropunctatum | Keila Stage → Vormsi Stage
  290. Multiplicisphaeridium ramusculosum macrocladum | Lasnamägi Stage → Rakvere Stage
  291. Multiplicisphaeridium raplaense | Kunda Stage → Pirgu Stage
  292. Multiplicisphaeridium raspa | Kunda Stage → Pirgu Stage
  293. Multiplicisphaeridium remotum raplaense | Idavere Substage → Pirgu Stage
  294. Multiplicisphaeridium spinosum | Kunda Stage → Aseri Stage
  295. Multiplicisphaeridium striatum | Keila Stage
  296. Multiplicisphaeridium subbifurcatum | Lasnamägi Stage → Keila Stage
  297. Multiplicisphaeridium toyetaforme | Keila Stage → Oandu Stage
  298. Multiplicisphaeridium turgidum | Uhaku Stage → Rakvere Stage
  299. Multiplicisphaeridium verrucosum | Keila Stage → Pirgu Stage
  300. Nodosus irregulare |
  301. Oppilatala ramusculosa |
  302. Ordovicidium aequifurcatum | Keila Stage → Pirgu Stage
  303. Ordovicidium elegantulum | Uhaku Stage → Pirgu Stage
  304. Ordovicidium groetlingboensis | Lasnamägi Stage → Pirgu Stage
  305. Ordovicidium groetlingboensis clavatum | Uhaku Stage → Keila Stage
  306. Ordovicidium heteromorphicum | Aseri Stage → Pirgu Stage
  307. Ordovicidium nanofurcatum | Ordovician
  308. Ordovicidium paucifurcatum | Idavere Substage
  309. Orthosphaeridium bispinosum | Keila Stage → Oandu Stage
  310. Orthosphaeridium chondrododora | Pirgu Stage
  311. Orthosphaeridium densiverrucosum | Aseri Stage → Oandu Stage
  312. Orthosphaeridium insculptum | Aseri Stage → Pirgu Stage
  313. Orthosphaeridium insculptum erectum | Lasnamägi Stage
  314. Orthosphaeridium latispinosum | Kukruse Stage → Keila Stage
  315. Orthosphaeridium rectangulare | Pirgu Stage
  316. Orthosphaeridium vibrissiferum | Aseri Stage → Pirgu Stage
  317. Palaeocladophora primaeva | Cambrian
  318. Palaeomonostroma fragmenta | Cambrian
  319. Peteinosphaeridium granulatum | Uhaku Stage → Idavere Substage
  320. Peteinosphaeridium hymenoferum | Volkhov Stage → Kunda Stage
  321. Peteinosphaeridium macrophylum | Volkhov Stage → Kunda Stage
  322. Peteinosphaeridium micranthum | Volkhov Stage → Lasnamägi Stage
  323. Peteinosphaeridium trifurcatum | Ordovician → Silurian
  324. Peteinosphaeridium trifurcatum longiradiatum | Lasnamägi Stage → Nabala Stage
  325. Peteinosphaeridium velatum | Volkhov Stage → Uhaku Stage
  326. Pheoclosterium clavatum | Kunda Stage
  327. Pirea orbicularis | Upper Cambrian (old nomenclature)
  328. Polyancistrodorus bryoides | Aseri Stage → Kukruse Stage
  329. Polyancistrodorus columbariferus | Kukruse Stage → Pirgu Stage
  330. Polyancistrodorus intricatus | Kunda Stage → Pirgu Stage
  331. Polyancistrodorus magnispinosus | Kunda Stage → Kukruse Stage
  332. Polyancistrodorus palmatus | Nabala Stage
  333. Polyancistrodorus phylloides | Aseri Stage → Lasnamägi Stage
  334. Polygonium acuminosum | Keila Stage → Nabala Stage
  335. Polygonium baltoscandium | Cambrian
  336. Polygonium breviradiatum | Idavere Substage → Jõhvi Substage
  337. Polygonium christianii | Ordovician
  338. Polygonium dedalinum |
  339. Polygonium delicatum | Kunda Stage → Keila Stage
  340. Polygonium gracilie |
  341. Polygonium nanum | Kunda Stage
  342. Polygonium sexiradiatum | Upper Cambrian (old nomenclature)
  343. Polygonium symbolum |
  344. Polygonium tenuispinosum | Volkhov Stage → Uhaku Stage
  345. Polygonium varium | Cambrian
  346. Priscogaleata parva | Keila Stage → Pirgu Stage
  347. Priscogaleata perforata | Kunda Stage → Keila Stage
  348. Priscotheca complanata |
  349. Pterospermella solida |
  350. Pterospermella velata |
  351. Pterospermella vitrea |
  352. Pterospermopsis tranvikensis | Lasnamägi Stage
  353. Pulvinosphaeridium granulatum | Pirgu Stage
  354. Raplasphaera consuta | Keila Stage → Pirgu Stage
  355. Raplasphaera undosa | Lasnamägi Stage → Pirgu Stage
  356. Revinotesta granulosa | Rakvere Stage
  357. Revinotesta parva | Volkhov Stage → Pirgu Stage
  358. Rhopaliophora foliatilis | Nabala Stage
  359. Rhopaliophora palmata | Aseri Stage → Rakvere Stage
  360. Rhopaliophora pilata | Kunda Stage → Vormsi Stage
  361. Rhopaliophora reticulata | Nabala Stage
  362. Saharidia fragile | Keila Stage → Vormsi Stage
  363. Salopidium granuliferum |
  364. Skiagia ciliosa | Lower Cambrian (old nomenclature) → Middle Cambrian (old nomenclature)
  365. Skiagia compressa | Cambrian
  366. Skiagia insigne | Cambrian
  367. Skiagia orbiculare | Lower Cambrian (old nomenclature)
  368. Skiagia ornata | Lower Cambrian (old nomenclature) → Middle Cambrian (old nomenclature)
  369. Solisphaeridium inaffectum | Kunda Stage → Pirgu Stage
  370. Stellechinatum helosum | Volkhov Stage → Juuru Stage
  371. Stellechinatum uncinatum |
  372. Stelliferidium cortinulum | Upper Cambrian (old nomenclature)
  373. Synsphaeridium gotlandium |
  374. Taeniosphaeridium parvum | Lasnamägi Stage
  375. Tasmanites martinsoni | Lasnamägi Stage → Pirgu Stage
  376. Tasmanites minutus | Uhaku Stage → Pirgu Stage
  377. Tasmanites verrucosus | Kukruse Stage → Porkuni Stage
  378. Tasmanites volkovae |
  379. Timofeevia enodis | Lasnamägi Stage → Uhaku Stage
  380. Timofeevia estonica |
  381. Timofeevia lancarae | Middle Cambrian (old nomenclature) → Tremadocian
  382. Timofeevia nodosa | Lasnamägi Stage
  383. Timofeevia parva |
  384. Timofeevia phosphoritica |
  385. Timofeevia tacheddirtensis |
  386. Tranvikium polygonale | Kunda Stage → Lasnamägi Stage
  387. Trichosphaeridium hirtum |
  388. Tunisphaeridium brevispinosum | Keila Stage → Nabala Stage
  389. Tunisphaeridium spinosissimum | Rakvere Stage → Nabala Stage
  390. Tunisphaeridium tentaculiferum |
  391. Veryhachium asymmetrospinosum | Keila Stage
  392. Veryhachium brevitrispinum | Lasnamägi Stage
  393. Veryhachium cymosum | Lasnamägi Stage → Pirgu Stage
  394. Veryhachium dumontii |
  395. Veryhachium europaeum | Lower Ordovician → Permian
  396. Veryhachium geometricum | Lasnamägi Stage → Jõhvi Substage
  397. Veryhachium incus | Upper Cambrian (old nomenclature)
  398. Veryhachium irroratum | Idavere Substage → Pirgu Stage
  399. Veryhachium lairdi | Kunda Stage → Pirgu Stage
  400. Veryhachium longispinosum | Jõhvi Substage → Pirgu Stage
  401. Veryhachium oklahomense | Kunda Stage → Pirgu Stage
  402. Veryhachium oligospinoides | Keila Stage → Pirgu Stage
  403. Veryhachium punctatum | Jõhvi Substage → Keila Stage
  404. Veryhachium reductum | Uhaku Stage → Keila Stage
  405. Veryhachium rhombispinosum | Volkhov Stage → Pirgu Stage
  406. Veryhachium rhomboidium | Juuru Stage
  407. Veryhachium trapezionarion | Kukruse Stage → Rakvere Stage
  408. Veryhachium trispinosum | Ordovician → Devonian
  409. Veryhachium trispinosum granulatum | Aseri Stage → Nabala Stage
  410. Veryhachium trisulcum | Uhaku Stage → Keila Stage
  411. Villosacapsula decorata | Nabala Stage → Vormsi Stage
  412. Visbysphaera dilatispinosa |
  413. Visbysphaera oligofurcata |
  414. Volkovia dentifera |
  415. Vulcanisphaera africana | Upper Cambrian (old nomenclature)
  416. Vulcanisphaera imparilis |
  417. Vulcanisphaera minor | Aseri Stage → Keila Stage
  418. Vulcanisphaera turbata | Upper Cambrian (old nomenclature)
  419. Winwaloeusia distrata | Rakvere Stage

Selection of related publications

  • Mens et al., 1999. Biostratigraphic dating of pebbles from the Upper Cambrian conglomerates in Estonia
  • Paalits, 1995. Acritarchs from the Cambrian-Ordovician boundary beds at Tõnismägi, Tallinn, North Estonia
  • Paalits, 1992b. Upper Cambrian acritarchs from boring core M-72 of North Estonia
  • Härmaste, 1991. Late Ordovician and Early Silurian acritarchs from Tähkvere borehole nr. 726
  • Uutela & Tynni, 1991. Ordovician acritarchs from the Rapla borehole, Estonia
  • Smelror, 1991. Palynomorphs from the Cyrtograptus centrifugus graptolite zone (Early Wenlock, Silurian), Bornholm
  • Eklund, 1990. Lower Cambrian acritarch stratigraphy of the Bårstad 2 core, Östergötland, Sweden
  • Uutela, 1983. Ordovikisia konodontteja Lounais-Suomen kalkkikivistä
  • Bockelie & Kjellström, 1979. Acritarchs from the Uhaku Stage (Middle Ordovician) of the island of Odinsholm (Osmussaare), Estonia
  • Volkova et al., 1979. Plant microfossils
  • Fridrichsone, 1971. Acritarchs Baltisphaeridium and Hystrichosphaeres (?) from the Cambrian sediments of Latvia
  • Volkova, 1968. Acritarchs from the Precambrian and Cambrian beds of Estonia