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Leiosphaeridia
Taxonomy
Leiosphaeridia was named by Eisenack (1958). It is considered to be a form taxon. Its type is Leiosphaeridia baltica.
It was assigned to Dinophyceae by Eisenack (1958); to Acritarcha by Maithy (1975), Allison and Awramik (1989) and Yao et al. (2005); and to Life by Riedman et al. (2023).
It was assigned to Dinophyceae by Eisenack (1958); to Acritarcha by Maithy (1975), Allison and Awramik (1989) and Yao et al. (2005); and to Life by Riedman et al. (2023).
Species
L. asperata, L. baltica (type species), L. crassa, L. crescentica, L. hyalina, L. jacutica, L. kanshiensis, L. menendezii, L. minutissima, L. perthensis, L. pusilla, L. similis, L. simplex, L. tenuissima
Synonymy list
| Year | Name and author |
|---|---|
| 1958 | Leiosphaeridia Eisenack p. 2 |
| 1975 | Leiosphaeridia Maithy p. 142 |
| 1989 | Leiosphaeridia Allison and Awramik p. 287 |
| 2005 | Leiosphaeridia Yao et al. p. 697 |
| 2023 | Leiosphaeridia Riedman et al. p. 24 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Leiosphaeridia Eisenack 1958
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†Leiosphaeridia asperata Naumova 1950
†Leiosphaeridia baltica Eisenack 1958
†Leiosphaeridia crassa Naumova 1949
†Leiosphaeridia crescentica Sinha 1969
†Leiosphaeridia hyalina Eisenack 1958
†Leiosphaeridia jacutica Timofeev 1969
†Leiosphaeridia kanshiensis Maithy 1975
†Leiosphaeridia menendezii Volkheimer et al. 1977
†Leiosphaeridia minutissima Naumova 1949
†Leiosphaeridia perthensis Blackhouse 1988
†Leiosphaeridia pusilla Madler 1963
†Leiosphaeridia similis Cookson and Eisenack 1960
†Leiosphaeridia simplex Sinha 1969
†Leiosphaeridia tenuissima Eisenack 1958
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Statherian to the top of the Late/Upper Miocene or 1800.00000 to 5.33300 Ma
Collections (169 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Statherian | Australia (Northern Territory) | L. crassa (232744) L. crassa, L. jacutica, L. minutissima (232735 232745) L. crassa, L. jacutica, L. minutissima, L. tenuissima (232731 232734 232740) L. crassa, L. jacutica, L. tenuissima (232732 232737 232742) L. crassa, L. minutissima (232743 232746 232747) L. crassa, L. minutissima, L. tenuissima (232738) L. minutissima, L. tenuissima (232741) | |
| Calymmian | USA (Montana) | L. sp. (227973) | |
| Calymmian | Russian Federation | L. minutissima, L. tenuissima (227522) L. sp. (227521) | |
| Mesoproterozoic | India (Madhya Pradesh) | L. sp. (225847) | |
| Mesoproterozoic - Tonian | Canada (Nunavut) | L. kulgunica, L. ternata, L. crassa, L. jacutica, L. minutissima (221355) | |
| Ectasian | Russian Federation (Chelyabinsk) | L. sp. (227739) | |
| Tonian | USA (Arizona) | L. sp. (237964 237969 237970 237971 237972 237973 237982 237985 237986 237988 237990 237991 237993 237994 237996 237997 237998 237999 238000 238001 238002 238003 238006 238007 238008 238009 238011) | |
| Tonian | Congo-Kinshasa | L. kanshiensis (227766) | |
| Tonian | Canada (Northwest Territories) | L. sp. (614 227974 227976 227978) | |
| Tonian | Canada (Yukon) | L. asperata (148715 227536 227537) | |
| Tonian - Cryogenian | India (Madhya Pradesh) | L. kanshiensis (140265) | |
| Neoproterozoic | India | L. sp. (97593) | |
| Neoproterozoic | Norway (Svalbard Archipelago) | L. spp. (148622 148623 148624) | |
| Tonian - Ediacaran | Russian Federation (Arkhangelsk) | L. atava, L. crassa, L. jacutica, L. minutissima, L. tenuissima (221522) | |
| Ediacaran | Estonia (Merikula) | L. sp., L. ternata, L. crassa, L. jacutica, L. minutissima, L. tenuissima (221270) | |
| Ediacaran | Norway | L. crassa (233043 233046 233048 233050 233052 233055 233056 233058) L. crassa, L. jacutica (233044 233045 233051 233053 233057) | |
| Ediacaran | Brazil (Mato Grosso do Sul) | L. crassa, L. minutissima (237543) | |
| Ediacaran | Russian Federation (Yakutsk) | L. spp. (140284) | |
| Ediacaran | Estonia (Ida-Viru) | L. sp., L. ternata, L. crassa, L. jacutica, L. minutissima, L. tenuissima (221354) | |
| Wonokan | Argentina | L. crassa, L. jacutica, L. minutissima, L. tenuissima (201679) L. sp., L. tenuissima (201680) | |
| Nemakit-Daldynian | Belarus | L. jacutica (232854) | |
| Early/Lower Cambrian | Norway (Svalbard Archipelago) | L. sp. (148617 148618 148621) | |
| Cambrian | Finland (Soderfjarden) | L. sp. (41196) | |
| Tommotian | Belarus | L. minutissima, L. tenuissima (232856) | |
| Amgan - Mayan | Russian Federation (Leningrad Oblast) | L. sp. (235438) | |
| Tremadoc | Sweden | L. sp. (3110) | |
| Darriwilian | United Kingdom (Wales) | L. sp. (230215) | |
| Sandbian | Estonia | L. sp. (164219 164221 164222 164246 164247 164248 164257 164258) | |
| Keila | Estonia (Kuusiku) | L. sp. (38037) | |
| Keila | Estonia (Harju) | L. sp. (197530) | |
| Katian | Estonia | L. sp. (164249 164255 164256 164259 164260 164261 164263 164264 164265) | |
| Hirnantian | Serbia and Montenegro | L. sp. (145650) | |
| Rhuddanian - Aeronian | Norway | L. sp. (2911 2912 2913 2914) | |
| Rhuddanian - Aeronian | Russian Federation (Siberia) | L. sp. (206484) L. voigtii (206541 206542 206543 206560) | |
| Telychian | Russian Federation (Siberia) | L. eisenacki (206347) | |
| Famennian | USA (Ohio) | L. sp. (23340) | |
| Buntsandstein | Germany | L. sp. (27001 27002 27003 27004 27022 27137 27138 27139 27140 27141 27142 27261 27270 27272 27273 27274 27292 27294 27295) | |
| Buntsandstein - Griesbachian | Germany | L. sp. (27164) | |
| Dienerian - Smithian | Madagascar | L. spp. (31351) | |
| Early/Lower Aalenian | Argentina (Neuquén) | L. pusilla (151451) | |
| Early/Lower Cretaceous | Argentina (San Luis) | L. spp. E, L. spp. F, L. spp. G, L. sp. B, L. hyalina, L. menendezii (151090) | |
| Late/Upper Aptian - Early/Lower Albian | Brazil (Sergipe) | L. sp. (169788) | |
| Late/Upper Albian - Early/Lower Cenomanian | Israel (Southern Coastal Plain) | L. sp. (144147 144149) | |
| Cenomanian | USA (Kansas) | L. sp. (32642 32652 32673 32674 32675 32676) | |
| Cenomanian - Cretaceous | USA (Kansas) | L. sp. (32655) | |
| Middle Cenomanian | South Sudan | L. sp. (199995 199996 200009 200025) | |
| Campanian - Early/Lower Maastrichtian | South Sudan | L. sp. (199954 199958) | |
| Late/Upper Campanian | Antarctica | L. spp. (150182) | |
| Maastrichtian | Argentina (Neuquén) | L. spp. (235468) | |
| Danian | Argentina (Neuquén) | L. spp. (235472 235474 235475) | |
| Danian | Argentina (Chubut) | L. hyalina (152264) | |
| Chattian | Azerbaijan | L. sp. (116622 116632 116637) | |
| Middle Miocene - Late/Upper Miocene | Argentina (Chubut) | L. sp. (144210) |