Areni, Arpinskaya Svita: Wordian, Armenia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Demospongiae
- Agelasida
- Sebargasiidae
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| 1 specimen | |||||||
| see common names | |||||||
Geography
| Country: | Armenia |
| Coordinates: | 39.7° North, 45.2° East (view map) |
| Paleocoordinates: | 4.8° South, 52.6° East (Wright 2013) |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Permian | Epoch: | Guadalupian |
| Stage: | Wordian | 10 m.y. bin: | Permian 4 |
| Key time interval: | Wordian | ||
| Age range of interval: | 266.9 - 264.28 m.y. ago |
Stratigraphy
| Formation: | Arpa | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Basal unit of the Midian stage of the Tethyan timescale. Kotlyar et al. (1989) identified two fusulinid zones, the lower Yangchienia thompsoni and the upper Chusenella abichi. In central Iran, Chusenella abichi occurs with Neoschwagerina margaritae (Leven, 1998), suggesting a Wordian age for the entire Arpa Formation. | |||||
Lithology and environment
| Primary lithology: | lithified "limestone" |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 81998 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | B. Allen | Research group: | marine invertebrate |
| Created: | 2008-07-20 11:08:05 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2008-07-20 11:08:05 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 9785. | E. V. Boiko, G. V. Belyaeva, and I. T. Zhuravleva. 1991. Sphinktozoa Phanerozoya Territorii SSSR [Phanerozoic Sphinctozoa of the Territory of the USSR] 1-224 [W. Kiessling/B. Brenneis/M. Clapham] |