Guhsania

Guhsania
Temporal range:
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Family: †Sonniniidae
Subfamily: †Witchelliinae
Genus: †
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.[2]

Guhsania belongs to the Sonniniidae, a member of the Hildoceratoidea superfamily. The shell (conch): essentially involute and ribbed throughout, umbilical edge sharp, outer whorl oxyconic.[3]

References

  1. ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology. 363: 1–560. Archived from the original on 2016-02-25. Retrieved 2017-10-18.
  2. ^ "Paleobiology Database - Guhsania". Retrieved 2017-10-19.
  3. ^ Treatise on Invertebrate Paleontology, Part L, 1957. p.L270


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