Daughter taxa (time control age-window is: 0-800Ma)![]() | Granddaughter taxa | ||||
| Lithostromation Triangular to stellate nannoliths with porous structure formed from small crystallites. All show 3-fold symetry but with a wide range of forms. | Lithostromation hohnensis Lithostromation pyramidale Trochoaster tripartitus Lithostromation martinii Lithostromation nodosum Lithostromation obscurum Lithostromation reginum Lithostromation operosum Lithostromation perdurum Lithostromation simplex Lithostromation biconvexitas Lithostromation sp. | ||||
| Planolithus | |||||
| Imperiaster Very large (15-30 µm) nannolith formed of 6 rays in two superposed offset triplets | |||||
| Martiniaster Disk-shaped with 10-12 radiate ridges | |||||
| Isolithus Simple triradiate nannolith | |||||
Distinguishing features:
Parent taxon (Nannolith families inc sed): Haptophytes forming calcareous structures not obviously homologous with heterococcoliths, holococcoliths, or discoasteralids
This taxon: Large (10-20µm) triangular to stellate nannoliths with porous structure formed from small crystallites. In xpl behave as single crystal unit with low birefringence
Farinacci & Howe catalog pages:
Lithostromationaceae
| Lith size: 2->30µm; |
Geological Range:
Last occurrence (top): at top of NN19 zone (100% up, 0.4Ma, in Ionian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Early Eocene Sub-Epoch (47.84-55.96Ma, base in Ypresian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
Deflandre, G. (1959). Sur les nannofossiles calcaires et leur systématique. Revue de Micropaléontologie. 2: 127-152. gs Lyul'eva, S. A. (1967). Coccolithophoridae in the Turonian strata of the Dneiper-Don Basins. Geologicheskiy Zhurnal. 27: 91-98. gs Perch-Nielsen, K. (1985). Cenozoic calcareous nannofossils. In, Bolli, H. M., Saunders, J. B. & Perch-Nielsen, K. (eds) Plankton Stratigraphy. Cambridge University Press, Cambridge (1): 427-555. gs Young, J. R. & Bown, P. R. (1997). Cenozoic calcareous nannoplankton classification. Journal of Nannoplankton Research. 19(1): 36-47. gs References:

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Lithostromationaceae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 12-5-2026
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=828 Go to Archive.is to create a permanent copy of this page - citation notes |
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