Miravetesina

Distinguishing features:
Parent taxon (Cretarhabdaceae): Regular placoliths; central-area spanned by elevated distal structure typically with cross bars and central spine.
The distal shield usuallyappers to be weakly bicyclic in the SEM, with a narrow outer-cycle and broad inner-cycle; elements usually radial and non-imbricate. LM image is moderately birefringent. V/R structure unclear.
This taxon: Cretarhabdids with central area spanned by narrow axial cross and fine net.

Daughter taxa (time control age-window is: 0-800Ma)
				Miravetesina bergenii Like M. favula but medium-sized (6-8 µm), with more pronounced axial cross, and younger age. Late Creteceous
				Miravetesina favula Large (7-12 µm) cretarhabdids with central area spanned by narrow axial cross and fine net. Late Jurassic-Early Cretaceous
				Miravetesina sp. Specimens not identified to species level

Taxonomy:

Farinacci & Howe catalog pages: Miravetesina *

Distinguishing features:
Parent taxon (Cretarhabdaceae): Regular placoliths; central-area spanned by elevated distal structure typically with cross bars and central spine.
The distal shield usuallyappers to be weakly bicyclic in the SEM, with a narrow outer-cycle and broad inner-cycle; elements usually radial and non-imbricate. LM image is moderately birefringent. V/R structure unclear.
This taxon: Cretarhabdids with central area spanned by narrow axial cross and fine net.

Morphology:

Geological Range:
Last occurrence (top): at top of Maastrichtian Stage (100% up, 66Ma, in Danian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Kimmeridgian Stage (149.24-154.78Ma, base in Kimmeridgian 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
• Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Cretarhabdaceae

Miravetesina compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 8-2-2025 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10685 Go to Archive.is to create a permanent copy of this page - citation notes

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