Scrippsiella

Distinguishing features:
Parent taxon (Tangential wall): Wall formed of crystals with tangential c-axes (Thoracosphara s.l.)
This taxon: 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. acuminata but spines longer and sutures between elements more complex
				Scrippsiella fragments Isolated spine-bearing elements from Scrippsiella cysts
				Scrippsiella sp.

Taxonomy:

Catalog entries: Scrippsiella

Distinguishing features:
Parent taxon (Tangential wall): Wall formed of crystals with tangential c-axes (Thoracosphara s.l.)
This taxon: 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 ranges of the species in this database
First occurrence (base): within Albian Stage (100.50-113.20Ma, base in Albian stage). Data source: Total of ranges of species in this database

Scrippsiella compiled by Jeremy R. Young viewed: 10-9-2024 Taxon Search: Advanced Search 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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