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 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:
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Scrippsiella compiled by Jeremy R. Young viewed: 21-3-2023
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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