Nannotax3 - ntax_mesozoic - Lotharingius sigillatus

Lotharingius sigillatus


Classification: ntax_mesozoic -> Watznaueriales -> Watznaueriaceae -> Lotharingius -> Lotharingius sigillatus
Sister taxa: L. hauffii, L. frodoi, L. umbriensis ⟩⟨ L. crucicentralis, L. sigillatus, L. barozii, L. primitivus, L. velatus, L. sp.

Distinguishing features:
Parent taxon (Lotharingius): Elliptical watznaueriacean coccoliths typically with central-area axial cross, with or without additional lateral bars. Cross usually spine bearing. Extinction figure with nearly straight arms. 
This taxon: Medium (4-7 µm) Lotharingius; central area relatively wide, with lozenge-shaped longitudinal structure, and additional lateral bars (around 16).


Taxonomy:

Citation: Lotharingius sigillatus (Stradner, 1961) Prins in Grün et al., 1974
Rank: Species
Basionym: Discolithus sigillatus Stradner, 1961
Synonyms:

Farinacci & Howe catalog pages: D. sigillatus * , P. veterna * , L. sigillatus *

Distinguishing features:
Parent taxon (Lotharingius): Elliptical watznaueriacean coccoliths typically with central-area axial cross, with or without additional lateral bars. Cross usually spine bearing. Extinction figure with nearly straight arms. 
This taxon: Medium (4-7 µm) Lotharingius; central area relatively wide, with lozenge-shaped longitudinal structure, and additional lateral bars (around 16).


Morphology:


Size:


Ecology & Biogeography


Biology & life-cycles

Phylogenetic relations

Search data:
LITHS: placolith, elliptical, CA: cross-axial, ca_disjunct, grill, process,
CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, R-prominent,
Lith size: 4->7µm;
Data source notes: Bown 1987 & ilus specs
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NJ15a subzone (158.53-160.84Ma, top in Oxfordian stage). Data source: Bown & Cooper 1998
First occurrence (base): in lower part of NJ5b subzone (20% up, 183.6Ma, in Pliensbachian stage). Data source: Bown & Cooper 1998 (fig. 4) - secondary events; Mattioli & Erba 1999, fig. 12 - zonal marker

Plot of occurrence data:

References:

Barnard, T. & Hay, W. W. (1974). On Jurassic coccoliths: A tentative zonation of the Jurassic of Southern England and North France. Eclogae Geologicae Helvetiae. 67(3): 563-585. gs O

Bown, P. R. & Cooper, M. K. E. (1998). Jurassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 34-85. gs O

Bown, P. R. (1987a). Taxonomy, evolution, and biostratigraphy of Late Triassic-Early Jurassic calcareous nannofossils. Special Papers in Palaeontology. 38: 1-118. gs

Bown, P. R. (1987b). The structural development of Early Mesozoic coccoliths and its evolutionary and taxonomic significance. Abhandlungen der Geologischen Bundesanstalt. 39: 33-49. gs V O

Grün, W. & Zweili, F. (1980). Das kalkige Nannoplankton der Dogger-Malm-Grenze im Berner Jura bei Liesberg (Schweiz). Jahrbuch der Geologischen Bundesanstalt. 123: 231-341. gs V O

Grün, W., Prins, P. & Zweili, F. (1974). Coccolithophoriden aus dem Lias epsilon von Holzmaden (Deutschland). Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 147: 294-328. gs

Mattioli, E. & Erba, E. (1999). Synthesis of calcareous nannofossil events in Tethyan lower and middle Jurassic successions. Rivista Italiana di Paleontologia e Stratigrafia. 105(3): 343-376. gs V O

Mattioli, E. (1996). New calcareous nannofossil species from the Early Jurassic of Tethys. Rivista Italiana di Paleontologia e Stratigrafia. 102(3): 397-412. gs V O

Menini, A., Mattioli, E., Spangenberg, J. E., Pittet, B. & Suan, G. (2018). New calcareous nannofossil and carbon isotope data for the Pliensbachian/Toarcian boundary (Early Jurassic) in the western Tethys and their paleoenvironmental implications. Newsletters on Stratigraphy. -. gs

Prins, B. (1969). Evolution and stratigraphy of cocolithinids from the Lower and Middle Lias. In, Bronnimann, P. & Renz, H. H. (eds) Proceedings of the First International Conference on Planktonic Microfossils, Geneva 1967. E. J. Brill, Leiden 547-558. gs

Rahman, A. & Roth, P. H. (1991). Upper Jurassic calcareous nannofossils from the DSDP Site 534 in the Blake Bahama Basin, western North Atlantic. Eclogae Geologicae Helvetiae. 84: 765-789. gs O

Rood, A. P., Hay, W. W. & Barnard, T. (1973). Electron microscope studies of Lower and Middle Jurassic coccoliths. Eclogae Geologicae Helvetiae. 66: 365-382. gs O

Stradner, H. (1961). Vorkommen von Nannofossilien im Mesozoikum und Alttertiär. Erdoel-Zeitschrift. 77(3): 77-88. gs

Zweili, F. (1989). Fossile Coccolithophoriden aus dem Weissensteingebiet. Mitteilungen / Naturforschende Gesellschaft des Kantons Solothurn. 34: 199-213. gs O


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Lotharingius sigillatus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 4-12-2022

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