Axopodorhabdus albianus

(Black, 1967) Wind & Wise, 1983 Jan 12, 2026

Set number: 2733

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Axopodorhabdus albianus, Middle Albian, Folkestone, England

Set number: 2732

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Axopodorhabdus albianus, Middle Albian, Folkestone, England

Set number: 2731

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Axopodorhabdus albianus, Late Cenomanian, Vergons, SE France

Set number: 2735

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Axopodorhabdus albianus, Late Cenomanian, Paipa Creek, Colombia

Set number: 2734

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Axopodorhabdus albianus, Late Cenomanian, Paipa Creek, Colombia

Set number: 2730

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Axopodorhabdus albianus, Early Cenomanian, Folkestone, England

Set number: 2729

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Axopodorhabdus albianus, Early Cenomanian, Folkestone, England

Set number: 2728

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Axopodorhabdus albianus, Early Cenomanian, Folkestone, England

Set number: 2727

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Axopodorhabdus albianus, Early Cenomanian, Vergons, SE France

Set number: 2726

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Axopodorhabdus albianus, Early Cenomanian, Vergons, SE France

Set number: 2725

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Axopodorhabdus albianus, Late Cenomanian, Eastern Gulf of Mexico

Final Epithet

Axopodorhabdus albianus (Black, 1967) Wind & Wise, 1983

Basionym

Podorhabdus albianus Black, 1967

Synonyms

Zygolithus biramiculatus Stover, 1966 — Invalid under ICN Art. 35.1; originally published in association with the invalid genus Zygolithus (ICN Arts. 36.1, 38.1, 40.1).

Axopodorhabdus biramiculatus (Stover, 1966) Corbett & Watkins, 2014 — Invalid under ICN Art. 35.1.

Prediscosphaera ? orbiculofenestra Gartner, 1968.

Podorhabdus fusiformis Black, 1972a.

Podorhabdus gracilis Black, 1972a.

Axopodorhabdus albianus (Black, 1967) Wind & Wise in Wise & Wind, 1977 — Invalid combination under ICN Art. 41.5; the original publication was not cited.

Optical Properties

The distal shield is in constant extinction because the optic axis (c-axis) is perpendicular to the microscope stage, whereas the double-layer proximal shield and the tube cycle exhibit interference colours with inclined extinction.

Remarks

The elliptical to sub-circular placolith consists of a distal plate composed of non-imbricated segments, a double-layered proximal shield, and a tube cycle supporting an axial cross with a hollow distal process.

Axopodorhabdus albianus is distinguished from other species of Axopodorhabdus by the presence of a well-separated, double-layered proximal shield.

References

Black, M. 1967. New names for some coccolith taxa. - Proceedings of the Geological Society of London 1640: 139-145.

Black, M. 1972a. British Lower Cretaceous Coccoliths. I-Gault Clay (Part 1). Palaeontographical Society Monograph. 126: 1-48.

Gartner, S., 1968. Coccoliths and related calcareous nannofossils from Upper Cretaceous deposits of Texas and Arkansas. University of Kansas Paleontological Contributions, Articles 48 (Protista 1), 1-56.

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

Wind, F. H. & Wise, S. W. 1983. Correlation of upper Campanian-lower Maastrichtian calcareous nannofossil assemblages in drill and piston cores from the Falkland Plateau, southwest Atlantic Ocean. Initial Reports of the Deep Sea Drilling Project. 71: 551-563.

Taxonomy

Axopodorhabdus

Biostratigraphy

Stratigraphic Range

Middle Albian - Late Cenomanian

Age (Ma)

109.94 - 93.98

Holotype

Podorhabdus albianus Black, 1967

Middle Albian

Folkestone, England