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Trigoniacea
Taxonomy
Trigoniacea was named by Lamarck (1819) [m. kosnik taxon no: 6153]. It is extant.
It was corrected as Trigonioidea by Bieler and Mikkelsen (2006), Nevesskaja (2009), Bouchet et al. (2010), Amler (2010) and Carter et al. (2011).
It was assigned to Trigoniina by Pérez et al. (2008); to Unionoida by Nevesskaja (2009); to Trigonioida by Newell (1965), Vokes (1980), Leanza and Casadío (1991), Giribet and Wheeler (2002), Bieler and Mikkelsen (2006) and Amler (2010); and to Trigoniida by Bouchet et al. (2010) and Carter et al. (2011).
It was corrected as Trigonioidea by Bieler and Mikkelsen (2006), Nevesskaja (2009), Bouchet et al. (2010), Amler (2010) and Carter et al. (2011).
It was assigned to Trigoniina by Pérez et al. (2008); to Unionoida by Nevesskaja (2009); to Trigonioida by Newell (1965), Vokes (1980), Leanza and Casadío (1991), Giribet and Wheeler (2002), Bieler and Mikkelsen (2006) and Amler (2010); and to Trigoniida by Bouchet et al. (2010) and Carter et al. (2011).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1819 | Trigoniacea Lamarck |
| 1965 | Trigoniacea Newell p. 18 |
| 1980 | Trigoniacea Vokes p. 96 |
| 1991 | Trigoniacea Leanza and Casadío p. 27 |
| 2002 | Trigoniacea Giribet and Wheeler |
| 2006 | Trigonioidea Bieler and Mikkelsen p. 230 |
| 2008 | Trigoniacea Pérez et al. p. 58 |
| 2009 | Trigonioidea Nevesskaja |
| 2010 | Trigonioidea Amler p. 22 |
| 2010 | Trigonioidea Bouchet et al. |
| 2011 | Trigonioidea Carter et al. p. 11 |
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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: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: Spathian or 251.30000 to 247.20000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Spathian | USA (Idaho) | Trigoniacea indet. (32977 32981) | |
| Spathian | USA (Utah) | Trigoniacea indet. (32932 32933 32934 32935 32938 32968) | |
| Spathian | USA (Montana) | Trigoniacea indet. (32975) |