'Striispirifer'-Spirinella Community, Canberra Fm., Fyshwick loc. CC72: Homerian - Gorstian, Australia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Anthozoa
- Heliolitida
- Heliolitidae
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? Heliolites sp.
Dana 1846
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Anthozoa
- Rugosa
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Rugosa indet.
Milne-Edwards and Haime 1850
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unclassified
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Bryozoa indet.
Ehrenberg 1831
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Inarticulata
- Inarticulata
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informal Inarticulata indet.
Huxley 1869
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| inarticulate brachiopods | ||||||||||
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Rhynchonellata
- Athyridida
- Nucleospiridae
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Nucleospira sp.
Hall 1859
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Rhynchonellata
- Spiriferida
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Spiriferida indet.
Waagen 1883
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Rhynchonellata
- Spiriferida
- Reticulariidae
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Spirinella caecistriata
Johnston 1941
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Rhynchonellata
- Spiriferida
- Delthyrididae
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Howellella aff. elegans
Muir-Wood 1925
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Rhynchonellata
- Spiriferida
- Cyrtiidae
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Striispirifer sp.
Cooper and Muir-Wood 1951
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| genus name in quotes | ||||||||||
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Rhynchonellata
- Orthida
- Draboviidae
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Salopina mediocostata
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Rhynchonellata
- Atrypida
- Septatrypidae
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Atrypoidea sp.
Mitchell and Dun 1920
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Rhynchonellata
- Atrypida
- Atrypidae
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Atrypa cf. perflabellata
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Strophomenata
- Orthotetida
- Chilidiopsidae
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Morinorhynchus oepiki
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Strophomenata
- Strophomenida
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Strophomenida indet.
Opik 1934
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Strophomenata
- Strophomenida
- Leptostrophiidae
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Leptostrophia (Leptostrophiella) oepiki
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Gastropoda
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Gastropoda indet.
Cuvier 1795
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Bivalvia
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Pelecypoda indet.
Goldfuss 1820
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Trilobita
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Trilobita indet.
Walch 1771
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Trilobita
- Phacopida
- Cheiruridae
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Onycopyge sp.
Woodward 1880
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Trilobita
- Phacopida
- Encrinuridae
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Pacificurus spp.
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| see common names | ||||||||||
Geography
| Country: | Australia | State/province: | Australian Capital Territory |
| Coordinates: | 35.3° South, 149.2° East (view map) | ||
| Paleocoordinates: | 2.8° North, 175.8° East | ||
| Basis of coordinate: | based on political unit | ||
| Geographic resolution: | local area |
Time
| Period: | Silurian | Epoch: | Wenlock - Ludlow |
| Stage: | Homerian - Gorstian | 10 m.y. bin: | Silurian 2 | *Epoch: | Late/Upper Wenlock - Early/Lower Ludlow |
| *International age/stage: | Late/Upper Homerian - Early/Lower Gorstian | ||
| Key time interval: | Homerian - Gorstian | ||
| Age range of interval: | 430.5 - 425.6 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Canberra | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Age of community given as Late Wenlockian? to Early Ludlovian. Correlation chart gives lowermost Gorstian for Cliftonwood Limestone (PBDB coll. 25680), with which Yarralumla formation is said to be coeval, and Canberra Formation is said to be slightly older than Yarralumla. | |||||
Lithology and environment
| Primary lithology: | "mixed carbonate-siliciclastic" |
| Includes fossils? | Y |
| Lithology description: See geology. | |
| Environment: | marine indet. |
| Geology comments: "As interpreted by Link (1971), the clastic sediments of the Cliftonwood Lst were deposited in a quiet transgression and were high subtidal to locally intertidal. The lower, sandier part of his Yass Subgroup has common ripple marked and occasional raindrop? marked bedding surfaces...Mud cracks filled with fine sand are not uncommon in the lower beds. Fossils are usually scattered...brachiopods commonly articulated...some evidence of bioturbation. The overall aspect of the fauna suggests assignment to BA 3. In the Canberra area, wehre the Yarralumla Form. is muddier and more obviously volcanogenic and local relief was probably greater, some occurrences may be deeper, but this has yet to be established....The is some evidence for lateral transition to the Halysitid community in the Canberra area, in both the Canberra Formation and the Yarralumla Formation. Thus, at locality CC16, the Yarralumla Formation is more calcareous than usual, approaching the silty calcarenites typical of the Halysitid Community..." | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Taxa listed in table 14.8, with abundances. Canberra Formation only.
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Metadata
| Database number: | 25684 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Uhen | Research group: | marine invertebrate |
| Created: | 2002-09-20 09:25:46 | Last modified: | 2018-11-18 11:09:45 |
| Access level: | the public | Released: | 2002-09-20 09:25:46 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 7152. | D. L. Strusz and M. J. Garratt. 1999. Australian communities. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities - a case study from the Silurian and Lower Devonian 177-199 [M. Foote/M. Foote/P. Wagner] |