Holophragma

Holophragma
Temporal range:
Holophragma calceoloides
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Cnidaria
Subphylum: Anthozoa
Class: †Rugosa
Order: †Stauriida
Family: †Lykophyllidae
Genus: †
Lindström, 1896
Species

See list of Holophragma species

Holophragma is an extinct genus of rugose coral known from Ordovician and Silurian rocks in Scandinavia, Russia, Australia and the United States.[1] Two of its species can be found on the northwestern coast of Gotland, where it is one of the most common fossil genera.[2] It was described by Gustaf Lindström in the year 1896.[3] The genus contains two species.


Description

Members of the genus Holophraga are small shoe- or horn-shaped corals. They usually lived on their side, with their calyx pointing upwards. H. calceoloides has a distinct cardinal septa, while H. mitrata does not.

Species

References

  1. ^ "Holophragma". Fossilworks. Retrieved 17 December 2021.
  2. ^ Sunstones and catskulls. Guide to the Fossils and geology of Gotland. Sara Elison. s.64. 2000
  3. ^ "Holophragma". Fossiilid.info. Retrieved 2019-06-06.


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