Polyptychites (Polyptychites) robertsi Alsen 2006 (ammonite)

Cephalopoda - Ammonitida - Polyptychitidae

Full reference: P. Alsen. 2006. The Early Cretaceous (Late Ryazanian-Early Hauterivian) ammonite fauna of North-East Greenland: taxonomy, biostratigraphy, and biogeography. Fossils and Strata 53:1-229

Belongs to Polyptychites (Polyptychites) according to P. Alsen 2006

Sister taxa: Polyptychites (Polyptychites) ascendens, Polyptychites (Polyptychites) beani, Polyptychites (Polyptychites) conferticosta, Polyptychites (Polyptychites) keyserlingi, Polyptychites (Polyptychites) michalskii, Polyptychites (Polyptychites) plenus, Polyptychites (Polyptychites) polyptychus, Polyptychites (Polyptychites) ramulicosta, Polyptychites (Polyptychites) rawsoni, Polyptychites (Polyptychites) tuberculatus

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 49.3

Distribution:

• Cretaceous of Greenland (2 collections)

Total: 2 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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