Puneet Varma (Editor)

Peltoceratinae

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Kingdom
  
Animalia

Class
  
Cephalopoda

Order
  
Ammonitida

Rank
  
Subfamily

Phylum
  
Mollusca

Subclass
  
Ammonoidea

Suborder
  
Ammonitina

Peltoceratinae

Similar
  
Aspidoceratidae, Peltoceras, Euaspidoceras, Aspidoceras, Ammonitina

The Peltoceratinae comprise a subfamily in the Aspidoceratidae, (middle and upper Jurassic perisphinctacean ammonites).

Genera in the Peltoceratinae have sharply ribbed inner whorls and outer whorls that bear spines or tubercles, or have coarse simple ribs. Among these are giant forms with simple peristomes (aperture openings) that occur along with smaller forms with lappets.

Derivation of the Peltoceratinae seems most likely to be from the Pseudoperisphinctinae.

References

Peltoceratinae Wikipedia