Cyatheacidites annulatus Cookson 1947 (fern)

Polypodiopsida - Dicksoniaceae

Belongs to Cyatheacidites according to V. S. Perez Loinaze et al. 2023

See also Barreda and Palamarczuk 2000 and Santamarina et al. 2020

Sister taxa: Cyatheacidites annulata, Cyatheacidites archangelskii, Cyatheacidites botuliformis, Cyatheacidites granulosus, Cyatheacidites pulcher, Cyatheacidites tectifera, Cyatheacidites verrucosus

Average measurements (in mm): Spore diameter 0.047

Distribution:

• Miocene of Argentina (1 collection), Australia (1)

• Oligocene to Miocene of Argentina (9), Australia (3)

• Oligocene of Argentina (1), Australia (1)

• Eocene to Oligocene of Chile (1)

• Eocene of Argentina (5)

• Paleocene of Antarctica (1), Argentina (6)

• Cretaceous of Antarctica (38), Argentina (7)

Total: 74 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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