Earth:Hunter Siltstone Formation
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| Hunter Siltstone Formation Stratigraphic range: Late Devonian (Famennian), 372.1–358.8 Ma | |
|---|---|
| Type | Geological formation |
| Unit of | Beargamil Subgroup, Hervey Group |
| Underlies | Mandagery Sandstone |
| Overlies | Peaks Sandstone |
| Lithology | |
| Primary | Siltstone |
| Location | |
| Location | Grenfell, New South Wales |
| Coordinates | [ ⚑ ] 33°24′S 148°06′E / 33.4°S 148.1°E |
| Region | New South Wales |
| Country | Australia |
  Hunter Siltstone Formation (Australia) | |
The Hunter Siltstone Formation is a geological unit of the Hervey Group, located north-east of Grenfell, New South Wales, Australia.[1] It records a handful of early sarcopterigians, such as the tristichopterid ‘cf. Eusthenodon sp. indet.’, formerly known as Eusthenodon gavini.[2], and the rhipidistian Grenfellia meemannae.[3] There are also antiarch placoderms like Bothriolepis and Remigolepis,[4] and the lungfish Adelargo,[5] among other genera.[3] The formation dates back to the Late Devonian period of the Famennian stage, and it most notably underlies the Lagerstätte Mandagery Sandstone.
Fossil content
Gnathostomata
| Genus | Species | Clade | Images |
|---|---|---|---|
| Adelargo | A. schultzei[5] | Dipnoi incertae sedis | |
| cf. Eusthenodon
(formerly Eusthenodon gavini[3]) |
sp. indet.[2] | Tetrapodomorpha, |  |
| Bothrioiepis | B. grenfellensis[4] | Antiarchi, |  |
| Grenfellacanthus | G. zerinae[6] | Ischnacanthiformes,
Ischnacanthidae |
|
| Grenfellia | G. meemannae[3] | Rhipidistia incertae sedis | |
| Grenfellaspis | G. branagani[7] | Antiarchi,
Sinolepidae |
|
| Groenlandaspsis | G. sp.[8] | Arthrodira, |  |
| Holoptychius | H. sp.[3] | Porolepiformes, |  |
| Remigolepis | R. redcliffensis[4] | Antiarchi,
Remigolepidae |
|
| Yambira | Y. thomsoni[3] | Osteolepiformes, |
References
- ↑ Conolly, J. R. (1965). The stratigraphy of the Hervey Group in central New South Wales. Journal and Proceedings of the Royal Society of New South Wales, 98, 37–83.
- ↑ 2.0 2.1 Jason P. Downs, Madison M. Osatchuck, Owen A. Goodchild & Edward B. Daeschler (2022) Second species of Eusthenodon (Tristichopteridae, Sarcopterygii) from the Upper Devonian (Famennian) Catskill Formation of Pennsylvania, U.S.A., and a review of global Eusthenodon occurrence, Journal of Vertebrate Paleontology, 42:5, e2201627, DOI: 10.1080/02724634.2023.2201627
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Johanson, Zerina & Ritchie, Alex. (2000). Rhipidistians (Sarcopterygii) from the Hunter Siltstone (Late Famennian) near Grenfell, NSW, Australia. Fossil Record. 3. 111 - 136. 10.1002/mmng.20000030107
- ↑ 4.0 4.1 4.2 Johanson, Z. (1997). New antiarchs (Placodermi) from the Hunter Siltstone (Famennian) near Grenfell, N.S.W. Alcheringa: An Australasian Journal of Palaeontology, 21(3), 191–217. https://doi.org/10.1080/03115519708619173
- ↑ 5.0 5.1 Johanson, Zerina & Ritchie, Alex. (2000). A new Late Famennian lungfish from New South Wales, Australia, and its bearing on Australian-Asian terrane relations. Alcheringa: An Australasian Journal of Palaeontology. 24. 99-118. 10.1080/03115510008619527
- ↑ Long, John A.; Burrow, Carole J.; Ritchie, Alex . (2004). A new Late Devonian acanthodian fish from the Hunter Formation near Grenfell, New South Wales. Alcheringa: An Australasian Journal of Palaeontology, 28(1), 147–156. doi:10.1080/03115510408619279
- ↑ A. Ritchie; Wang Shitao; Gavin C. Young; Zhang Guorui (1992) The Sinolepidae, a family of antiarchs (placoderm fishes) from the Devonian of South China and eastern Australia. Records of the Australian Museum, 44(3), 319-370. https://doi.org/10.3853/j.0067-1975.44.1992.38
- ↑ Ritchie, A. Groenlandaspis in Antarctica, Australia and Europe. Nature 254, 569–573 (1975). https://doi.org/10.1038/254569a0
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