Distinguishing features: Elliptical; central area with axial cross and tall spine
Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
![]() | ![]() | Axopodorhabdus albianus Axopodorhabdus with 3-tiered shield and axial cross bars that flare where they join the rim. Highly diagnostic XPL image comprising birefringent cross bars with median extinction lines that darken at 45 degrees. | ||
![]() | ![]() | Axopodorhabdus atavus Axopodorhabdus with narrow rim and narrow axial cross bars. | ||
![]() | ![]() | ![]() | Axopodorhabdus cylindratus Axopodorhabdus with axial cross structure bearing a tall, hollow spine. The four holes delineated by the cross bars are often near circular. | |
![]() | ![]() | Axopodorhabdus dietzmannii Axopodorhabdus with elongated, slightly flattened, elliptical outline (oblong shaped) with axial cross structure bearing a tall, hollow spine. Cross bars without medial extinction line in xpl. | ||
![]() | ![]() | Axopodorhabdus rahla Axopodorhabdus with spine that has four protrusions forming a distinctive distal calyx. Seen in side view. | ||
![]() | Axopodorhabdus sp. Specimens not identified to species level |
Taxonomy:
Farinacci & Howe catalog pages: Axopodorhabdus *
Distinguishing features: Elliptical; central area with axial cross and tall spine
Search data:Tags | LITHS: placolith, elliptical, CA: cross-axial, ca_disjunct, process, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent, |
Metrics | Lith size: 4->11µm; Data source notes: size range of included species |
Geological Range:
Last occurrence (top): at top of Cenomanian Stage (100% up, 93.9Ma, in Cenomanian stage). Data source: Total of range of species in this database
First occurrence (base): in lower part of Pliensbachian Stage (40% up, 187.6Ma, in Pliensbachian stage). Data source: Total of range of species in this database
Plot of occurrence data:
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 Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 132-199. gs V O Noël, D. (1965b). Sur les Coccolithes du Jurassique Européen et d'Afrique du Nord. Essai de classification des coccolithes fossiles. Éditions du Centre National de la Recherche Scientifique, Paris. 1-209. gs Wise, S. W. & Wind, F. H. (1977). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 36 drilling on the Falkland Plateau, south-west Atlantic sector of the Southern Ocean. Initial Reports of the Deep Sea Drilling Project. 36(269-491): -. gs V OReferences:
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Axopodorhabdus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-4-2021
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10048 Go to Archive.is to create a permanent copy of this page - citation notes |