Takatika Grit
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| Takatika Grit | |
|---|---|
| Stratigraphic range: Paleocene, | |
| Type | Formation |
| Underlies | Tutuiri Greensand |
| Overlies | Chatham Schist |
| Location | |
| Region |  Chatham Islands (Chatham Island) |
| Country |  New Zealand |
The Takatika Grit is a geologic formation in Chatham Island, New Zealand (Tioriori). It preserves fossils dating back to the Paleocene period, although it also preserves disturbed and reworked Campanian microfossils.
Paleofauna
| Paleofauna of the Hornerstown Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | |
| Astrophorida .indet[1] | indeterminate | Tioriori | Only fragmentary spicules are known | |||
| Auloplax? (Dactylocalycidae indet.?)[1] | A? sp. | Tioriori | Hexactinellid sponge | |||
| Eotretochone[1] | E. australis | Tioriori | Hexactinellid sponge | |||
| Euretidae indet.[1] | Indeterminate | Tioriori | ||||
| Lithistida indet.[1] | Indeterminate | Tioriori | Known from scarce weathered fragments | |||
| Lycopodiopsida indet.[2] | Indeterminate | Tioriori | ||||
| Pararete[1] | P sp. | Tioriori | Hexactinellid sponge | |||
|
Theropoda indet. (Takatika Grit theropod)[2] |
Indeterminate |
Tioriori | upper Takatika Grit | Possible Paleogene non-avian dinosaur, although the remains are probably Maastrichtian or Campanian in age.[3][4] Discovered in March 2003.[2][5] | ||
| Tretodictyiidae indet.[1] | Indeterminate | Tioriori | ||||
See also
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 22 June 2014.
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- ^ a b c d e f g Consoli, C., Pisera, A., & Stilwell, J. (2009). Siliceous Sponges of the Takatika Grit (Cretaceous-Paleogene), Chatham Islands, South Pacific. Journal of Paleontology, 83(5), 811-819. Retrieved July 8, 2020, from www.jstor.org/stable/20627664
- ^ a b c Stilwell, J.D.; Consoli, C.P.; Sutherland, R.; Salisbury, S.; Rich, T.H.; Vickers-Rich, P.A.; Currie, P.J.; Wilson, G.J. (2006). "Dinosaur sanctuary on the Chatham Islands, Southwest Pacific: First record of theropods from the K–T boundary Takatika Grit". Palaeogeography, Palaeoclimatology, Palaeoecology. 230 (4): 243–250. doi:10.1016/j.palaeo.2005.07.017.
- ^ Fordyce, R. E. 2006. New light on New Zealand Mesozoic reptiles. Geological Society of New Zealand newsletter 140: 6-15.
- ^ Haw, D. 2002. The discovery of fossils in Mangahouanga Stream. Geological Society of New Zealand newsletter 129: 13-14.
- ^ Fordyce, R. E. 2003. Fossils and the history of life. Pp 35-64 in Darby, J. T., Fordyce, R. E., Mark, A. F., Probert, P. K., & Townsend, C. R. (eds), The natural history of southern New Zealand. University of Otago Press, Dunedin. 387 p.