Funiferites

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Phylum:Mollusca
Subclass:Ammonoidea
Order:Ammonitida
Funiferites
Temporal range: Callovian
[1]
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Family: Cardioceratidae
Subfamily: Cadoceratinae
Genus: Funiferites
Kiselev et al., 2003
Type species
Ammonites funiferus
Phillips, 1829
Species
  • F. allae Kiselev, 1999
  • F. patruus Eichwald, 1868
  • F. funiferi Phillips, 1829

Funiferites is genus of ammonite that lived during end of middle and in upper Callovian stage of middle Jurassic.[1]

Ammonites of this genus had large shells. At the beginning of this evolutionary lineage, cross sectio. of shell was highly oval with rounded venter. Later, it has changed into subtriangular, or keeled. Ribs are curved sinusoidally and they are bending on the venter. During ontogeny, ribs are beginning to disappear from the sides. They are lasting the longest on the venter, mostly in the case of keeled specimens.[1]

Evolution

Genus Funiferites is a single evolutionary lineage. Its predecessor is Longaeviceras alpha. This gave rise to F. allae that evolved into F. patruus. Descendant of that one is F. funiferi.[2]

Validity

References

Literature

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