Earth:Lealt Shale
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| Lealt Shale Formation Stratigraphic range: Bathonian | |
|---|---|
 Thinly bedded limestones of the Lealt Shale formation overlain by Paleogene lava | |
| Type | Geological formation |
| Unit of | Great Estuarine Group |
| Sub-units | Kildonnan Member, Lonfearn Member |
| Underlies | Valtos Sandstone Formation |
| Overlies | Elgol Sandstone Formation |
| Thickness | Between 45 and 50 m |
| Lithology | |
| Primary | Mudstone |
| Other | Limestone |
| Location | |
| Region | Europe |
| Country |  Scotland |
| Extent | Inner Hebrides |
| Type section | |
| Named for | Lealt, Skye |
| Named by | Harris and Hudson |
| Location | Cliffs east of Lonfearn (partial), Coastal exposure 2.5 km north of Kildonnan, Eigg (partial) |
| Year defined | 1980 |
| Thickness at type section | Lonfearn: 26 to 30 m (partial) Kildonnan: 23 m (partial) |
The Lealt Shale Formation is a Middle Jurassic geologic formation in Scotland. Fossil ornithopod, theropod and stegosaur tracks, a theropod dinosaur tooth and the pterosaur Dearc have been reported from the formation.[1][2][3] The lithology consists of silty fissile mudstones with subordinate thin limestones.[4]
Fossil content
Template:Paleobiota-key-compact
Dinosaurs
Theropoda
| Theropod of the Lealt Shale Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Theropoda Indet. | Indeterminate | Tooth | ||||
Pterosaurs
| Pterosaurs of the Lealt Shale Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Dearc[5] | D. sgiathanach | A angustinaripterin rhamphorhynchid |  | |||
Fish
| Fishes of the Lealt Shale Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Archaeotolithus[6] | A. eiggensis | A ray-finned fish | ||||
| A. invernizziae | ||||||
| Leptolepis[6] | L. flexuosus | a leptolepid fish | ||||
| L. skyensis | ||||||
See also
- List of dinosaur-bearing rock formations
- List of stratigraphic units with ornithischian tracks
- Ornithopod tracks
- List of stratigraphic units with ornithischian tracks
Footnotes
- ↑ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
- ↑ Young, Chloe M. E.; Hendrickx, Christophe; Challands, Thomas J.; Foffa, Davide; Ross, Dugald A.; Butler, Ian B.; Brusatte, Stephen L. (May 2019). "New theropod dinosaur teeth from the Middle Jurassic of the Isle of Skye, Scotland". Scottish Journal of Geology 55 (1): 7–19. doi:10.1144/sjg2018-020. ISSN 0036-9276. http://sjg.lyellcollection.org/lookup/doi/10.1144/sjg2018-020.
- ↑ dePolo, Paige E.; Brusatte, Stephen L.; Challands, Thomas J.; Foffa, Davide; Wilkinson, Mark; Clark, Neil D. L.; Hoad, Jon; Pereira, Paulo Victor Luiz Gomes da Costa et al. (2020-03-11). Fiorillo, Anthony R.. ed. "Novel track morphotypes from new tracksites indicate increased Middle Jurassic dinosaur diversity on the Isle of Skye, Scotland" (in en). PLOS ONE 15 (3). doi:10.1371/journal.pone.0229640. ISSN 1932-6203.
- ↑ "Lealt Shale Formation". https://webapps.bgs.ac.uk/lexicon/lexicon.cfm?pub=LASH.
- ↑ Jagielska, N.; O'Sullivan, M.; Funston, G. F.; Butler, I. B.; Challands, T. J.; Clark, N. D. L.; Fraser, N. C.; Penny, A. et al. (2022). "A skeleton from the Middle Jurassic of Scotland illuminates an earlier origin of large pterosaurs". Current Biology 32 (6): 1446–1453.e4. doi:10.1016/j.cub.2022.01.073. PMID 35196508. Bibcode: 2022CBio...32E1446J. https://zenodo.org/record/6251702.
- ↑ 6.0 6.1 Schwarzhans, W. W.; Wakefield, M. I. (2024). "Otoliths from the Lealt Shale Formation, Great Estuarine Group, Middle Jurassic (Bathonian), Inner Hebrides, Scotland". Scottish Journal of Geology 60 (2): 002. doi:10.1144/sjg2024-002. Bibcode: 2024ScJG...60....2S.
References
- Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.
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