Guhsania

Guhsania
Temporal range: Middle Jurassic[1]
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Family: Sonniniidae
Genus: Guhsania
McLearn, 1926

Guhsania is an extinct ammonoid cephalopod genus that lived during the early Middle Jurassic, (early Bajocian),[1] from about 171.5 to 173.5 Ma.

Guhsania belongs to the Sonniniidae, a member of the hildoceratacean superfamily. The shell (conch): essentially involute and ribbed throughout, umbilical edge sharp, outer whorl oxyconic.[2]

References

  1. 1 2 Jack Sepkoski, 2002. List of fossil cephalopod genera.
  2. ↑ Treatise on Invertebrate Paleontology, Part L, 1957. p.L270
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