Holcodiscidae

Extinct family of ammonites From Wikipedia, the free encyclopedia

Holcodiscidae is an ammonite family placed in the superfamily Desmoceratoidea.[1][2]

Phylum:Mollusca
Class:Cephalopoda
Subclass:†Ammonoidea
Order:†Ammonitida
Quick facts Scientific classification, Synonyms ...
Holcodiscidae
Temporal range: Cretaceous
Spitidiscus species from Alpes-de-Haute-Provence
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Superfamily: †Desmoceratoidea
Family: †Holcodiscidae
Spath, 1923
Synonyms
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Description

Moderately involute with rounded, rectangular, or depressed whorl section; straight or sinuous, fine, dense ribs typically continuing over venter and may be periodically truncated by oblique, enlarged ribs, with or without umbilical, lateral and ventrolateral tubercles. Suture rather simple.[2][3]

Genera

Distribution

Fossils of species within this family have been found in the Cretaceous sediments in Argentina, Austria, Bulgaria, Chile, Colombia, the Czech Republic, Czechoslovakia, France, Hungary, Italy, Mexico, Morocco, Portugal, Romania, Slovakia, Spain and Russia.[1][2]

References

External links

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