Chitinotax - ct_main - Cutichitininae Chitinotax - ct_main - Cutichitininae

Cutichitininae

NB This site is under active development


Classification: ct_main -> Desmochitinidae -> Cutichitininae
Sister taxa: Desmochitininae, Cutichitininae, Pterochitininae, Margachitininae, Einsenackitininae, Orbichitininae
Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
Cutichitina
ovoid chanber enveloped by a membranous sleeve.
Cutichitina legrandi
Cutichitina minivelata
Cutichitina sp.

Taxonomy

Citation: Cutichitininae Achab et al., 1993
Taxonomic rank: subfamily
Basionym: Cutichitininae Achab et al., 1993
Type species: Genus Cutichitina Achab et al., 1993
Taxonomic discussion: Comparison: Specimens of an undescribed genus that seems to correspond to this new genus have been reported by Miller and Benson (1988). Halochitina Eisenack, 1968, and Pterochitina Eisenack, 1955, are distinguished from Cutichitina gen. nov. by their wing-shaped carina in a latitudinal position. Velatachitina Poumnot 1968 is larger, has a prosome structure, and a conical vesicle.

Catalog entries: Cutichitininae

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Distinguishing features:
Parent taxon (Desmochitinidae): no neck
This taxon: sleeve

NB These concise distinguishing features statements are used in the tables of daughter-taxa to act as quick summaries of the differences between e.g. species of one genus.
They are being edited as the site is developed and comments on them are especially welcome.

Description


Emended description:
Diagnosis: Ovoidal to spherical vesicle characterized by a membranous outer layer well-separated from the inner wall that forms a sleeve covering the entire vesicle. Chains observed. The outer layer contributes to the linear linkage.

Biogeography and Palaeobiology

Biostratigraphic distribution

Geological Range:
Last occurrence (top): at top of Telychian Stage (100% up, 432.9Ma, in Sheinwoodian stage). Data source: Total of ranges of the species in this database
First occurrence (base): within Ordovician Period (443.07-486.85Ma, base in Tremadocian stage). Data source: Total of ranges of species in this database

Plot of occurrence data:
NB The ranges given for genera and higher taxa are the total ranges of species included in that taxon in this database - so the true total range of the taxon will usually be longer

References:

Achab, A., Asselin, E. & Soufiane, A. (1993). New morphological characters observed in the Order Operculatifera and their implications for the suprageneric Chitinozoan classification. Palynology. 17: 1-9. gs


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Cutichitininae compiled by the Sonia Camino, viewed: 9-9-2026

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Short stable page link: https://mikrotax.org/Chitinotax/index.php?id=160022 Go to Archive.is to create a permanent copy of this page - citation notes



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