Holophragma
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.
| Holophragma Temporal range:
| |
|---|---|
| |
| The species Holophragma calceoloides. | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | |
| Family: | |
| Genus: | †Holophragma Lindström, 1896
|
| 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.
 | This prehistoric Hexacorallia article is a stub. You can help Wikipedia by expanding it. |
 | This article related to a Silurian animal is a stub. You can help Wikipedia by expanding it. |