Discophyllitidae

Discophyllitidae
Temporal range: 235.0–189.6 Ma[1]
Rhacophyllites neojurensis at the Museum für Naturkunde, Berlin
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Suborder: Phylloceratina
Family: Discophyllitidae
Genera[1]

Discophyllitidae are discoidal, generally evolute Phylloceratina from the Upper Triassic, derived from the Ussuritidae, in which the principal saddles of the suture have bifurcated or trifurcated endings, described as being di- or triphyllic. Discophyllitid shells are rather similar to those of the ancestral Ussuritidae and are distinguished primarily by the more complex suture. The Discophyllitidae provided the source for the Jurassic Phylloceratidae and Juraphyllitidae. Four genera are recognized and described.[2]

  1. ^ a b "Paleobiology Database - Discophyllitidae". Retrieved 17 December 2021.
  2. ^ Treatise on Invertebrate Paleontology Part L Mollusca 4, Ammonoidea, 1957