| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Trigonodictya
Taxonomy
Trigonodictya is a genus. It is not extant.
It was assigned to Rhinidictyonidae by Bassler (1953); to Cryptostomata by Sepkoski (2002); and to Rhinidictyidae by Ernst et al. (2019).
It was assigned to Rhinidictyonidae by Bassler (1953); to Cryptostomata by Sepkoski (2002); and to Rhinidictyidae by Ernst et al. (2019).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1953 | Trigonodictya Bassler p. G141 |
| 1982 | Astreptodictya Ruppel and Walker |
| 2002 | Trigonodictya Sepkoski |
| 2019 | Trigonodictya Ernst et al. p. 645 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Smith et al. 2006, Kiessling 2004 | |||||
Age range: base of the Blackriveran to the top of the Aeronian or 457.30000 to 438.50000 Ma
Collections (19 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sandbian | Argentina | T. cirrita (144791) T. cirrita, T. parvula (144790) | |
| Sandbian | Argentina (San Juan) | T. elegans (226179) | |
| Caradoc | USA (Tennessee) | Astreptodictya sp. (80597) T. sp. (80005) | |
| Blackriveran | USA (Tennessee) | T. irregularis (5331) | |
| Kirkfieldian | USA (Kentucky) | T. acuta (23386) | |
| Rocklandian | USA (Minnesota, Iowa, Wisconsin, Illinois) | T. acuta (23309 23312) T. acuta, T. fimbriata, T. pumila, T. elegans, T. conciliatrix (23377) | |
| Rocklandian | USA (New York) | T. acuta (23381 23382) | |
| Rocklandian - Shermanian | USA (Minnesota) | Astreptodictya fimbriata, Astreptodictya acuta, Astreptodictya elegans, Astreptodictya pumila (23290) | |
| Shermanian | USA (New York) | T. acuta (23384 23385) | |
| Trentonian | USA (Iowa) | Astreptodictya sp. (330) | |
| Katian | Norway | T. cyclostomoides (144636) | |
| Richmondian | USA (Nevada) | Astreptodictya sp. (78053) | |
| Aeronian | USA (New York) | T. sp. (202121) |