Scrippsiella


Classification: ntax_non_cocco -> Dinophytes -> Thoracosphaeraceae -> Tangential wall -> Scrippsiella
Sister taxa: Calcigonellum, Calciodinellum, Centosphaera, Cervisiella, Fuettererella, Lebessphaera, Operculodinella, Scrippsiella, Thoracosphaera

Distinguishing features: Cysts with tangential wall structure and compound archaeopyles. Wall formed of largish non-intelocking elements each with a spine

Daughter taxa (time control age-window is: 0-800Ma)
Scrippsiella crystallina

Scrippsiella lachrymosa

Scrippsiella minima

Scrippsiella patagonica

Scrippsiella precaria

Scrippsiella rotunda

Scrippsiella sweeneyae

Scrippsiella trifida

Scrippsiella triquetracapitata

Scrippsiella acuminata
Sub-spherical to ellipsoidal; Wall of largish irregular weakly-interlocking elements with a central spine; c-axes tangential to surface and randomly oriented in plane of surface;
Scrippsiella regalis
Like S. trochoidea but spines longer and sutures between elements more complex
Scrippsiella fragments
Isolated spine-bearing elements from Scrippsiella cysts
Scrippsiella sp.

Taxonomy:

Citation: Scrippsiella Balech ex Loeblich 1965
Rank: Genus
Type species: Scrippsiella sweeneyae Balech ex Loeblich 1965

Catalog entries: Scrippsiella

Distinguishing features: Cysts with tangential wall structure and compound archaeopyles. Wall formed of largish non-intelocking elements each with a spine

Original description: Scrippsiella sweeneyi gen. nov., sp. nov., was proposed by Balech (1959, p. 196). Although described and figured by Balech (1959, p. 196, 12c, text-figs. 1, 2), no Latin diagnosis was given for the genus or species. Since Balech used botanical classification, both the genus and species are invalid without Latin diagnoses. The following diagnosis is presented in order to validate these names.

Scrippsiella sweeneyi gen. nov., sp. nov.; epitheca conica, hypotheca rotundata, cine ceratibus. Cingulum latum cavazoniforme, descendens, per 2/3 partis latitudinis dispositum , sine laciniis. Cingulum quinque laminas aequas atque sinistrorsus laminam transitionis habet. Sulcus profundus modice latus dextrorsus paululo curvatus, lamina posteriore maxima. Formula laminarum : 4', 3a, 7", 6c, 5"', 2" ", Cellula 24-32.5µm long., 19-24 µm transdiametro. Chromatophori multi, elliptici fuscovirides. Habitus: in aqua marina, in loco La Jolla, California dicto. Typus: S. sweeneyi sp. nov. Scrippsiella sweenyi sp. nov., holotypus: text-fig. la in Balech

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): within Albian Stage (100.50-112.95Ma, base in Albian stage). Data source: Total of range of species in this database

References:

Balech, E. (1959). Two new genera of dinoflagellates from California. The Biological Bulletin. 116: 195-203. gs

Loeblich, A. R. (1965). Dinoflagellate nomenclature. Taxon. 14: 15-18. gs


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Scrippsiella compiled by Jeremy R. Young viewed: 15-5-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20435 Go to Archive.is to create a permanent copy of this page - citation notes



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