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Gaudryceras kayei Forbes 1846 (ammonite)

Cephalopoda - Ammonitida - Gaudryceratidae

PaleoDB taxon number: 144750

Alternative combinations: Ammonites kayei, Lytoceras (Gaudryceras) kayei, Vertebrites kayei

Synonyms: Lytoceras (Gaudryceras) birkhauseri Anderson 1958 (no. 299414), Lytoceras (Gaudryceras) coalingense Anderson 1958 (no. 299413)

Full reference: E. Forbes. 1846. Report on the fossil invertebrata from southern India, collected by Mr. Kaye and Mr. Cunliffe. Transactions of the Geological Society of London, Series 2 7:97-174

Belongs to Gaudryceras according to C. Salazar et al. 2010

Sister taxa: Gaudryceras (Gaudryceras), Gaudryceras aenigma, Gaudryceras beantalyense, Gaudryceras crassicostatum, Gaudryceras hobetsense, Gaudryceras izumiense, Gaudryceras makarovense, Gaudryceras mite, Gaudryceras numidum, Gaudryceras propemite, Gaudryceras seymouriense, Gaudryceras stefaninii, Gaudryceras striatum, Gaudryceras tenuiliratum, Gaudryceras varagurense, Lytoceras (Gaudryceras) alamedense, Lytoceras (Gaudryceras) aureum, Lytoceras (Gaudryceras) delvallense, Lytoceras (Gaudryceras) denmanense, Lytoceras (Gaudryceras) texanum, Mesogaudryceras leptonema, Vertebrites murdochi, Gaudryceras (Neogaudryceras) pictum

Type specimens:

  • Gaudryceras kayei: BMNH C51050, a shell
  • Lytoceras (Gaudryceras) birkhauseri: CAS 61891.01, a shell. Its type locality is CAS Loc. 2361 - Joaquin Ridge [Ragged Valley Shale], which is in a Maastrichtian marine shale in the Ragged Valley Shale Formation of California.
  • Lytoceras (Gaudryceras) coalingense: CAS 61892.01, a shell. Its type locality is CAS Loc. 2362 - Coalinga [Ragged Valley Shale], which is in a Campanian marine shale in the Ragged Valley Shale Formation of California.

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell width 16.9, shell diameter 49.6