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Taxonomy
Poromyacea was named by Dall (1886) [m. kosnik taxon no: 6126]. It is extant.
It was corrected as Poromyoidea by Coan et al. (2000), Nevesskaja (2009), Bouchet et al. (2010) and Carter et al. (2011).
It was assigned to Pholadomyoida by Vokes (1980) and Squires (1984); to Septibranchia by Ward and Blackwelder (1987) and Coan et al. (2000); to Poromyoida by Newell (1965) and Nevesskaja (2009); to Septibranchia by Bouchet et al. (2010); and to Poromyida by Carter et al. (2011).
It was corrected as Poromyoidea by Coan et al. (2000), Nevesskaja (2009), Bouchet et al. (2010) and Carter et al. (2011).
It was assigned to Pholadomyoida by Vokes (1980) and Squires (1984); to Septibranchia by Ward and Blackwelder (1987) and Coan et al. (2000); to Poromyoida by Newell (1965) and Nevesskaja (2009); to Septibranchia by Bouchet et al. (2010); and to Poromyida by Carter et al. (2011).
Synonymy list
| Year | Name and author |
|---|---|
| 1886 | Poromyacea Dall |
| 1965 | Poromyacea Newell p. 21 |
| 1980 | Poromyacea Vokes p. 211 |
| 1984 | Poromyacea Squires p. 54 |
| 1987 | Poromyacea Ward and Blackwelder p. 131 |
| 2000 | Poromyoidea Coan et al. pp. 545, 568 |
| 2009 | Poromyoidea Nevesskaja |
| 2010 | Poromyoidea Bouchet et al. |
| 2011 | Poromyoidea Carter et al. p. 18 |
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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.
Superfm. Poromyoidea Dall 1886
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Fm. Poromyidae Dall 1886
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G. †Cetoconcha Dall 1886
G. †Cymella Meek 1864
G. †Liopistha Meek 1864
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†Leiopistha meekii White 1874
Subg. †Liopistha (Psilomya) Meek 1876
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†Liopistha (Psilomya) allani Warren 1933
†Liopistha (Psilomya) hardingensis Packard 1922
†Psilomya peterpondi McLearn 1933
†Liopistha anaana Anderson 1902
†Liopistha glabra Warren 1934
†Liopistha ligeriensis d'Orbigny 1845
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Invalid names: Homomya profunda White 1887 [synonym], Pholadomya molli Coquand 1862 [synonym]
†Liopistha protexta Conrad 1853
†Liopistha sergipensis White 1887
†Liopistha servesensis Choffat 1901
†Liopistha sulcata von Koenen 1898
†Liopistha superba Stoliczka 1871
†Liopistha ventricosa von Koenen 1897
G. †Megaporomya Ayoub-Hannaa et al. 2013
G. †Neaeroporomya Cossmann 1886
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†Neaeroporomya pakistanica Eames 1951
†Neaeroporomya soriensis Eames 1951
G. Poromya Forbes 1844
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Subg. Poromya (Dermatomya) Dall 1921
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Dermatomya buttoni Dall 1916
Dermatomya tenuiconcha Dall 1913
Subg. †Poromya (Mioporomya)
Subg. Poromya (Poromya) Forbes 1844
†Poromya globulosa Forbes 1846
†Poromya lata Forbes 1846
†Poromya tumida Cossmann 1882
Invalid names: Dermatomyidae Scarlato and Starobogatov 1983 [synonym], Neaeroporomyidae Scarlato and Starobogatov 1983 [synonym], Perlaporomyidae Scarlato and Starobogatov 1983 [synonym]
Invalid names: Cetoconchidae Ridewood 1903 [empty]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range
Maximum range based only on fossils: base of the Late/Upper Aptian to the top of the Middle Pleistocene or 122.46000 to 0.12900 Ma
Minimum age of oldest fossil (stem group age): 113.0 Ma
Minimum age of oldest fossil (stem group age): 113.0 Ma
Collections (355 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aptian - Albian | China (Xizang) | Liopistha sp. (61399) | |
| Late/Upper Aptian | Colombia | Liopista gigantea (221846) | |
| Albian | Peru | Liopistha gigantia (88673) | |
| Albian | Canada (Alberta) | Psilomya peterpondi (87418) | |
| Albian | Peru (Cajamarca) | Liopistha gigantea (56988 56989 56990) Liopistha sp. (56911) | |
| Early/Lower Albian | Peru (Cajamarca) | Liopistha gigantea (88169) | |
| Early/Lower Albian | Gabon | Liopistha sp. 1 (209483 209484) Liopistha sp. 2 (209486) Megaporomya sp. (209487) | |
| Early/Lower Albian | Peru | Liopistha sp. (88152) | |
| Middle Albian | Brazil (Sergipe) | Homomya profunda (87861) Liopistha sergipensis (87862) | |
| Middle Albian | Canada (Alberta) | Psilomya peterpondi (87457) | |
| Middle Albian - Early/Lower Cenomanian | Venezuela (Trujillo) | Liopistha cornueliana (64456) | |
| Late/Upper Albian | United Kingdom (England) | Liopistha gigantea (6280 51673) | |
| Late/Upper Albian | Egypt | Liopistha albiana (98327) | |
| Late/Upper Albian | Spain | Psilomya gigantea (66129) | |
| Late/Upper Albian - Cenomanian | Egypt | Poromya ligeriensis (150876) | |
| Cenomanian | Canada (British Columbia) | Liopistha allani (87450) | |
| Cenomanian | USA (Texas) | Liopistha sp. (4652) Psilomya concentrica (4638 6593 6604 6646) Psilomya levis (4654 6498) | |
| Cenomanian | USA (Arizona) | Liopistha meeki (3096) Liopistha sp. (3080 3081 3086) | |
| Early/Lower Cenomanian | Brazil | Liopistha alta (140837) | |
| Late/Upper Cenomanian | USA (New Mexico) | Psilomya concentrica (44284) | |