Tropidostoma Assemblage Zone
| Stratigraphy of the Karoo Supergroup in the Karoo Basin | ||||
|---|---|---|---|---|
| Period | Group | Formation west of 24°E | Formation east of 24°E | Assemblage Zone |
| Jurassic | Drakensberg | Hiatus | Drakensberg | |
| Stormberg | Clarens | |||
| Triassic | Elliot | |||
| Molteno | ||||
| Beaufort | ||||
| Burgersdorp | Cynognathus | |||
| Katberg | Lystrosaurus | |||
| Balfour | ||||
| Permian | Dicynodon | |||
| Teekloof | ||||
| Cistecephalus | ||||
| Middleton | ||||
| Tropidostoma | ||||
| Pristerognathus | ||||
| Abrahams-Kraal | Abrahams-Kraal | |||
| Tapinocephalus | ||||
| Eodicynodon | ||||
| Ecca | Waterford | Waterford | ||
| Tierberg / Fort Brown | Fort Brown | |||
| Laingsburg / Ripon | Ripon | |||
| Collingham | Collingham | |||
| Whitehill | Whitehill | |||
| Prince Albert | Prince Albert | |||
| Carboniferous | Dwyka | Elandsvlei | Elandsvlei | |
| References: Rubidge (2005),[1] Selden and Nudds (2011).[2] | ||||
The Tropidostoma Assemblage Zone is a geological stratum and a faunal zone of the Beaufort Group, of the South African Karoo. The name refers to Tropidostoma, a genus of dicynodont, whose fossils have been found in that structure.
Paleobiota
Synapsids
†Anomodonts
Color key
|
Notes Uncertain or tentative taxa are in small text; |
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
|---|---|---|---|---|---|---|
| Tropidostoma | T. microtrema | An Oudenodontid Dicynodont |
†Biarmosuchians
Color key
|
Notes Uncertain or tentative taxa are in small text; |
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
|---|---|---|---|---|---|---|
| Lobalopex | L. mordax | A Burnetiamorph |  | |||
| Lophorhinus | L. willodenensis | A Burnetiamorph |  |
Cynodonts
Color key
|
Notes Uncertain or tentative taxa are in small text; |
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
|---|---|---|---|---|---|---|
| Charassognathus | C. gracilis | A basal Cynodont |  |
†Gorgonopsians
Color key
|
Notes Uncertain or tentative taxa are in small text; |
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
|---|---|---|---|---|---|---|
| Gorgonops | G. torvus
G. whaitsi G. longifrons |
A Gorgonopsid |  |
Sauropsids
Color key
|
Notes Uncertain or tentative taxa are in small text; |
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
|---|---|---|---|---|---|---|
| Saurorictus | S. australis | A Captorhinid | ||||
| Youngina | Y. capensis | A Younginid |
References
- ^ Rubidge, B.S. (2005). "Re-uniting lost continents – Fossil reptiles from the ancient Karoo and their wanderlust". South African Journal of Geology. 108 (1): 135–172. doi:10.2113/108.1.135.
- ^ Selden, P.; and Nudds, J. (2011). "Karoo". Evolution of Fossil Ecosystems (2 ed.). Manson Publishing. pp. 104–122. ISBN 9781840761603.
External links
- South Africa at Palaeocritti
 | This South Africa-related article is a stub. You can help Wikipedia by expanding it. |
 | This article about a specific stratigraphic formation in Africa is a stub. You can help Wikipedia by expanding it. |