Zorba Extension Opal Field: Late Aptian, Australia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Plesiosauria
- Leptocleididae
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Umoonasaurus demoscyllus n. gen., n. sp.
Kear et al. 2006
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1 individual | |||||||||
| AM F99374 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Australia | State/province: | South Australia |
| Coordinates: | 29.0° South, 134.7° East (view map) | ||
| Paleocoordinates: | 69.0° South, 110.3° East (Wright 2013) | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| 10 m.y. bin: | Cretaceous 2-3 | ||
| Key time interval: | Late Aptian | ||
| Age range of interval: | 119.57 - 113.2 m.y. ago |
Stratigraphy
| Geological group: | Rolling Downs | Formation: | Bulldog Shale | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "Cyclosporites hughesii, Crybelosporites striatus zones / Odontochitina operculata, Diconodinium davidii and Muderongia tetracantha zones." Marree Subgroup. | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,replaced with other |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Abundance in sediment: | few |
| Fragmentation: | occasional |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | selective quarrying,survey of museum collection |
| Collection size: | 1 individuals |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | Coober Pedy | ||
| Database number: | 103082 | ||
| Authorizer: | M. Carrano | Enterer: | H. Street |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2011-01-22 08:47:46 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2011-01-22 08:47:46 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 34852. | B. P. Kear, N. I. Schroeder, and M. S. Y. Lee. 2006. An archaic crested plesiosaur in opal from the Lower Cretaceous high-latitude deposits of Australia. Biology Letters 2:615-619 [M. Carrano/H. Street] |
Secondary references:
| 89724 | S. F. Poropat, P. R. Bell, L. J. Hart, S. W. Salisbury, and B. P. Kear. 2023. An annotated checklist of Australian Mesozoic tetrapods. Alcheringa: An Australasian Journal of Palaeontology 47(2):129-205 [M. Carrano/M. Carrano] | |
| 79070 | J. D. Scanlon. 2006. Dinosaurs and other Mesozoic reptiles of Australasia. In J. R. Merrick, M. Archer, G. M. Hickey, & M. S. Y. Lee (eds.), Evolution and Biogeography of Australasian Vertebrates 265-290 [M. Carrano/M. Carrano] |