Holophragma
| Holophragma Temporal range: | |
|---|---|
 | |
| Holophragma calceoloides | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Subphylum: | Anthozoa |
| Class: | †Rugosa |
| Order: | †Stauriida |
| Family: | †Lykophyllidae |
| Genus: | †Holophragma Lindström, 1896 |
| 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
[edit]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
[edit]- Holophragma calceoloides Lindström, 1866
- Holophragma mitrata Schlotheim, 1820
References
[edit]- ↑ "Holophragma". Fossilworks. Retrieved 17 December 2021.
- ↑ Sunstones and catskulls. Guide to the Fossils and geology of Gotland. Sara Elison. s.64. 2000
- ↑ "Holophragma". Fossiilid.info. Retrieved 2019-06-06.
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