Taxonomy:
Trochastrites hohnensis (Martini 1958) Bouché 1962
Distinguishing features:
Parent taxon (Lithostromation): Triangular to stellate nannoliths with porous structure formed from small crystallites. All show 3-fold symetry but with a wide range of forms.
This taxon: 3 co-planar narrow, bifurcate rays, medium size (8-11 µm)
Farinacci & Howe catalog pages: D. hohnensis *
Search data:
Lith size: 0->0µm; |
Geological Range:
Last occurrence (top): within Middle Eocene Sub-Epoch (37.75-47.84Ma, top in Bartonian stage). Data source: Bouche 1962
First occurrence (base): within Middle Eocene Sub-Epoch (37.75-47.84Ma, base in Lutetian stage). Data source: Middle Eocene
Plot of occurrence data:
Bouché, P. M. (1962a). Nannofossiles calcaires de Lutétien du Bassin de Paris. Revue de Micropaléontologie. 5: 75-103. gs Costa, S. de O. & Antunes, R. L. , (1994). Optical microscope revision of the morphostructural features of nannoliths Incertae Sedis present on Paleocene/middle Eocene section of the Espirito Santo Basin. Boletim de Geociencias da Petrobras. 8(2-4): 381-400. gs Martini, E. (1958). Discoasteriden und verwandte Formen im NW-deutschen Eozän (Coccolithophorida). 1. Taxonomische Untersuchungen. Senckenbergiana Lethaea. 39: 353-388. gs Steurbaut, E. & Nolf, D. (2021). The Mont-des-Récollets section (N France): a key site for the Ypresian-Lutetian transition at mid-latitudes – reassessment of the boundary criterion for the base-Lutetian GSSP. Geodiversitas. 43(11): 311-363. gs Young, J. R. (2023). Some proposed changes to the systematics of Cenozoic and Mesozoic nannoplankton. Journal of Nannoplankton Research. 41(1): 15-25. gs References:
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Lithostromation hohnensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-5-2025
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1721 Go to Archive.is to create a permanent copy of this page - citation notes |
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