| 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).
Species lacking formal opinion data
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: Kiessling 2004, Smith et al. 2006, Nesnidal et al. 2013 | |||||
Age range: base of the Blackriveran to the top of the Aeronian or 457.30000 to 438.60000 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 (New York) | T. acuta (23381 23382) | |
| Rocklandian | USA (Minnesota, Iowa, Wisconsin, Illinois) | T. acuta (23309 23312) T. acuta, T. fimbriata, T. pumila, T. elegans, T. conciliatrix (23377) | |
| 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) |