species arranged by first occurrence (time control age-window is: 0-800Ma)
Granddaughter taxa
Carinolithus magharensis Trumpet-shaped coccoliths with minute, disc-like proximal shield and very narrow stem-like distal shield that flares distally to form a hexagonal structure. Seen in side view, but the distal hexagonal structures are also seen as disarticulated hexaliths.
Carinolithus superbus Trumpet-shaped coccoliths with small, disc-like proximal shield and narrow gently widening distal shield that flares distally to a diameter just greater than the proximal disc. Seen in side view.
Taxonomy:Citation: Carinolithus Prins in Grün et al., 1974Taxonomic rank: genusType species: Carinolithus superbus (Deflandre, 1954) Prins in Grün et al., 1974Taxonomic discussion: See Visentin et al. (2021) for detailed discssion of this genus and and morphometric study of the species.
Distinguishing features: Parent taxon (Calyculaceae): Elevated placoliths, tube tall and proximal shield reduced; central-area with variable proximal cover.
The distal shield is formed from V-units and the proximal shield from R-units. Commonly observed in side view. This taxon: Trumpet-shaped coccoliths with small, disc-like proximal shield and high, flaring distal shield.
Lith size: 7->10µm; Data source notes: size range of included species
The morphological data given here can be used on the advanced search page. See also these notes
Geological Range: Last occurrence (top): at top of Bathonian Stage (100% up, 165.3Ma, in Bathonian stage). Data source: Total of ranges of the species in this database First occurrence (base): within Toarcian Stage (174.70-184.20Ma, base in Toarcian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Bown, P. R. & Cooper, M. K. E. (1998). Jurassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 34-85. gsO
Deflandre, G. & Fert, C. (1954). Observations sur les coccolithophoridés actuels et fossiles en microscopie ordinaire et électronique. Annales de Paléontologie. 40: 115-176. gs
Grün, W., Prins, P. & Zweili, F. (1974). Coccolithophoriden aus dem Lias epsilon von Holzmaden (Deutschland). Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 147: 294-328. gs
Visentin, S., Faucher, G. & Erba, E. Mattioli, E. (2021). Taxonomic revision of the genus Carinolithus (Early - Middle Jurassic) based on morphometric analyses and diagenesis observations: Implications for biostratigraphy and evolutionary trends. Marine Micropaleontology. 162: 1-11. gs
Carinolithus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 8-2-2026
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Stefano Visentin
1
Feb 2021
Stefano Visentin(Italy)
Dear all,
I recently published a paper where I discussed the taxonomy of the genus Carinolithus based on morphometric analyses and diagenesis observations. This resulted in two new subspecies for the taxon Carinolithus superbus and two new subspecies for the taxon Carinolithus magharensis. Additionally the species Carinolithus cantaluppii was rejected as a diagenetic artefact. The reference is here:https://doi.org/10.1016/j.marmicro.2020.101950
Could we add these information to nannotax database (also pictures of the new taxa would be of great help).
Thanks a lot for your job here in nannotax: it is extremely useful.
Stefano
Jeremy Young
581
Jan 2017
Jeremy Young(UK)
Hi Stefano
That sounds good - could you send me (jeremy.young@ucl.ac.uk) a preprint copy of your plates - that way we do not infringe Elsevier's copyright, and we can make sure the full quality images get on the site.
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Comments (2)
Dear all,
I recently published a paper where I discussed the taxonomy of the genus Carinolithus based on morphometric analyses and diagenesis observations. This resulted in two new subspecies for the taxon Carinolithus superbus and two new subspecies for the taxon Carinolithus magharensis. Additionally the species Carinolithus cantaluppii was rejected as a diagenetic artefact. The reference is here:https://doi.org/10.1016/j.marmicro.2020.101950
Could we add these information to nannotax database (also pictures of the new taxa would be of great help).
Thanks a lot for your job here in nannotax: it is extremely useful.
Stefano
Hi Stefano
That sounds good - could you send me (jeremy.young@ucl.ac.uk) a preprint copy of your plates - that way we do not infringe Elsevier's copyright, and we can make sure the full quality images get on the site.
cheers
Jeremy