Bown2005-ODP198 Pl01-19.jpg
Bown_etal_1998 EK 5-01-12.jpg
Bown_etal_1998 EK 5-01-13.jpg
Bown_etal_1998 EK 5-07-17.jpg
Bown_etal_1998 EK 5-07-18.jpg
Bown_in_Kennedy-2000_fig31-p.JPG
Burnett in Gale 1996 f4-14n.JPG
Distinguishing features: Distinctive Staurolithites with a rim composed of two equally birefringent cycles, separated by spirally-arranged extinction gyres, and a central cross slightly rotated from axial.
Bown2005-ODP198 Pl01-19.jpg
Bown_etal_1998 EK 5-01-12.jpg
Bown_etal_1998 EK 5-01-13.jpg
Bown_etal_1998 EK 5-07-17.jpg
Bown_etal_1998 EK 5-07-18.jpg
Bown_in_Kennedy-2000_fig31-p.JPG
Burnett in Gale 1996 f4-14n.JPGTaxonomy:
Farinacci & Howe catalog pages: Staurolithites mutterlosei *
Distinguishing features: Distinctive Staurolithites with a rim composed of two equally birefringent cycles, separated by spirally-arranged extinction gyres, and a central cross slightly rotated from axial.
Morphology remarks: SEM images show a non-imbricating outer, distal wall cycle, which may explain the unusual birefringence pattern. Imbrication of the outer wall cycle is a fairly conservative feature of this genus, but degrees of imbrication may vary, and for the present this species is retained in Staurolithites. Varol and Girgis (1994) proposed a new genus, Bownia, with mutterlosei as the type species
| Tags | LITHS: murolith, elliptical, CA: cross-axial, process, diagonal cross, V-UNITS: V-prominent, DETAILS: ca_disjunct, rim-bicyclic, |
| Metrics | Lith size: 5->7µm; Sources: illustrated specimens |
Geological Range:
Last occurrence (top): within Early Cenomanian Substage (96.24-100.50Ma, top in Cenomanian stage). Data source: Bown et al. 1998
First occurrence (base): within Early Valanginian Substage (136.41-139.39Ma, base in Valanginian stage). Data source: Bown et al. 1998
Plot of occurrence data:
Bown, P. R. (2005c). Early to Mid-Cretaceous Calcareous Nannoplankton from the Northwest Pacific Ocean, Leg 198, Shatsky Rise. Proceedings of the Ocean Drilling Program, Scientific Results. 198: 1-82. gs :: view :: open Bown, P. R., Rutledge, D. C., Crux, J. A. & Gallagher, L. T. (1998). Early Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 86-131. gs :: :: Crux, J. A. (1989). Biostratigraphy and palaeogeographical applications of Lower Cretaceous nannofossils from north-western Europe. In, Crux, J. A. & van Heck, S. E. (eds) Nannofossils and their applications. British Micropalaeontological Society Publication Series. 143-211. gs :: :: Gale, A. S., Kennedy, W. J., Burnett, J. A., Caron, M. & Kidd, B. E. (1996). The Late Albian to Early Cenomanian succession at Mont Risou, near Rosans (Drôme, SE France): an integrated study (ammonites, inoceramids, planktonic foraminifera, nannofossils, oxygen and carbon isotopes). Cretaceous Research. 17: 515-606. gs :: :: Kennedy, W. J. et al. (2000). Integrated stratigraphy across the Aptian-Albian boundary in the Marnes Bleues, at the Col de Pre _-Guittard, Arnayon (Drome), and at Tartonne (Alpes-de-Haute-Provence), France: a candidate Global Boundary Stratotype Section and Boundary Point for the base of the Albian Stage. Cretaceous Research. 21: 591-720. gs :: :: Varol, O. & Girgis, M. (1994). New taxa and taxonomy of some Jurassic to Cretaceous calcareous nannofossils. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen. 192: 221-253. gs :: :: References:
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Staurolithites mutterlosei compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 6-6-2020
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