New Field, Coocoran: Early/Lower Cenomanian, Australia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Equisetopsida
- Araucariaceae
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Araucaria sp.
de Jussieu 1789
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| "araucarians" | ||||||||||
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Reptilia
- Testudines
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Testudines indet.
Batsch 1788
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| "turtles" | ||||||||||
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Reptilia
- Theropoda
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Theropoda indet.
Marsh 1881
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1 specimen | |||||||||
| "advanced nonavian theropod or bird" | ||||||||||
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Reptilia
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Aves indet.
Linnaeus 1758
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1 specimen | |||||||||
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Ornithothoraces indet.
Chiappe and Calvo 1994
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1 specimen | |||||||||
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Crocodylia indet.
(Owen 1842)
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| "crocodiles" | ||||||||||
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= Isisfordia molnari n. sp.
Hart et al. 2019
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Hart et al. 2019 | |||||||||
| AM F125553 - type | ||||||||||
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Gastropoda
- Turritellidae
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Turritella sp.
Lamarck 1799
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unclassified
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Crustacea indet.
Brünnich 1772
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| invalid subgroup of Pancrustacea | ||||||||||
| "crustaceans" | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Australia | State/province: | New South Wales |
| Coordinates: | 29.5° South, 147.8° East (view map) | ||
| Paleocoordinates: | 59.3° South, 140.4° East | ||
| Basis of coordinate: | based on nearby landmark | ||
| Altitude: | 169 meters | ||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
| Key time interval: | Early/Lower Cenomanian | Pollen zone: | Coptospora paradoxa |
| Age range of interval: | 100.50000 - 93.90000 m.y. ago |
Stratigraphy
| Geological group: | Rolling Downs | Formation: | Griman Creek | Member: | Wallangulla Sandstone |
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: From Bell et al. 2019: U-Pb age dating of detrital zircons extracted from a distinct layer of volcanogenic claystone immediately overlying one of the opalised fossil-bearing layers yields a maximum depositional age of 100.2–96.6 Ma. These new dates confirm an early to mid-Cenomanian age for the fauna, rather than Albian, as has been reported previously. | |||||
Lithology and environment
| Primary lithology: | claystone |
| Includes fossils? | Y |
| Lithology description: "opal-bearing claystone" | |
| Environment: | estuary/bay |
| Geology comments: "estuary of the Australian Cretaceous inland sea" | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Preservation of anatomical detail: | medium |
| Articulated whole bodies: | none |
| Associated major elements: | none |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
| Fragmentation: | frequent |
Collection methods and comments
| Collection methods: | surface (float),field collection |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 38543 | ||
| Authorizer: | M. Carrano, P. Mannion | Enterer: | M. Carrano, P. Mannion |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2004-04-23 13:19:49 | Last modified: | 2022-03-24 05:25:37 |
| Access level: | the public | Released: | 2004-04-23 13:19:49 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 10344. | R. E. Molnar. 1999. Avian tibiotarsi from the Early Cretaceous of Lightning Ridge, New South Wales. Proceedings of the Second Gondwana Dinosaur Symposium, Y. Tomida, T. H. Rich and P. Vickers-Rich (eds.), National Science Museum Monographs 15:197-209 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 69220 | L. J. Hart, P. R. Bell, E. T. Smith and S. W. Salisbury. 2019. Isisfordia molnari sp. nov., a new basal eusuchian from the mid-Cretaceous of Lightning Ridge, Australia. PeerJ 7:e7166:1-22 [P. Mannion/P. Mannion] |