Nannotax3 - ntax_mesozoic - Grantarhabdus camaratus Nannotax3 - ntax_mesozoic - Grantarhabdus camaratus

Grantarhabdus camaratus


Classification: ntax_mesozoic -> Podorhabdales -> Cretarhabdaceae -> Grantarhabdus -> Grantarhabdus camaratus
Sister taxa: G. camaratus, G. coronadventis, G. meddii, G. sp.

Distinguishing features:
Parent taxon (Grantarhabdus): Cretarhabdids with relatively narrow shields; central area wide with diagonal cross bars.
This taxon: Large (ca 8-10 µm) cretarhabdid with diagonal cross and space in between crossbars filled by perforate net.


Taxonomy:

Citation: Grantarhabdus camaratus (Bukry 1969) Wise 1983
Taxonomic rank: species
Basionym: Ethmorhabdus camaratus Bukry 1969

Farinacci & Howe catalog pages: E. camaratus *

Distinguishing features:
Parent taxon (Grantarhabdus): Cretarhabdids with relatively narrow shields; central area wide with diagonal cross bars.
This taxon: Large (ca 8-10 µm) cretarhabdid with diagonal cross and space in between crossbars filled by perforate net.


Phylogenetic relations

Wise (1983) suggested this species might be ancestral to Nephrolithus corystus

Search data:
LITHS: placolith, elliptical, CA: diagonal cross, grill, process, ca_disjunct, CROSS-POLARS: R-prominent, rim-unicyclic,
Lith size: 8->10µm;
Data source notes: original description & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Campanian Stage (72.17-83.65Ma, top in Campanian stage). Data source: Bukry (1969)
First occurrence (base): within Campanian Stage (72.17-83.65Ma, base in Campanian stage). Data source: Bukry (1969)

Plot of occurrence data:

References:

Bukry, D. (1969). Upper Cretaceous coccoliths from Texas and Europe. University of Kansas Paleontological Contributions, Articles. 51 (Protista 2): 1-79. gs O

Hattner, J. G. & Wise, S. W. (1980). Upper Cretaceous calcareous nannofossil biostratigraphy of South Carolina. South Carolina Geology. 24: 41-117. gs

Salomon, R. (1999). The Calcite Palace. Website - https://ina.tmsoc.org/galleries/CalcitePalace/index.htm. -. 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 O

Wise, S. W. (1983). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 71 in the Falkland Plateau region, Southwest Atlantic Ocean. Initial Reports of the Deep Sea Drilling Project. 71: 481-550. gs O


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Grantarhabdus camaratus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 14-2-2025

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10486 Go to Archive.is to create a permanent copy of this page - citation notes
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