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Taxonomy
Isognomon was named by Lightfoot (1786) [Sepkoski's age data: Tr Carn R Sepkoski's reference number: 94]. It is extant. Its type is Ostrea isognomon.
It was assigned to Pterioida by Sepkoski (2002); to Isognomidae by Repin (2013) and Ros-Franch et al. (2014); and to Isognomonidae by Vokes (1980), Moore (1983), Kensley and Pether (1986), Ward (1992), Chiesa et al. (1995), Lamprell and Healy (1998), Frassinetti and Covacevich (1999), Matsubara (2002), Spencer et al. (2004), Lazo and Damborenea (2011) and Hickman (2023).
It was assigned to Pterioida by Sepkoski (2002); to Isognomidae by Repin (2013) and Ros-Franch et al. (2014); and to Isognomonidae by Vokes (1980), Moore (1983), Kensley and Pether (1986), Ward (1992), Chiesa et al. (1995), Lamprell and Healy (1998), Frassinetti and Covacevich (1999), Matsubara (2002), Spencer et al. (2004), Lazo and Damborenea (2011) and Hickman (2023).
Species
I. (Hippochaeta), I. (Iranognomon), I. (Isognomon), I. (Melina), I. (Mulletia), I. (Parviperna), I. (Semignomon), I. alatus, I. bicolor (syn. Perna chemnitziana), I. gariesensis, I. gaudichaudi (syn. Perna chilensis), I. isognomoides, I. isognomon, I. isognomonoides, I. legumen, I. maxillata, I. nucleus, I. orientalis, I. perna, I. quadrisulcata, I. radiatus, I. repini, I. valvanoi
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1786 | Isognomon Lightfoot |
| 1980 | Isognomon Vokes p. 44 |
| 1983 | Isognomon Moore p. A84 |
| 1986 | Isognomon Kensley and Pether p. 202 |
| 1992 | Isognomon Ward p. 63 |
| 1995 | Isognomon Chiesa et al. p. 39 |
| 1998 | Isognomon Lamprell and Healy p. 106 |
| 1999 | Isognomon Frassinetti and Covacevich p. 23 |
| 2002 | Isognomon Matsubara p. 135 |
| 2002 | Aviculoperna Sepkoski |
| 2002 | Isognomon Sepkoski |
| 2004 | Isognomon Spencer et al. |
| 2011 | Isognomon Lazo and Damborenea p. 729 |
| 2013 | Isognomon Repin p. 563 |
| 2014 | Isognomon Ros-Franch et al. |
| 2023 | Isognomon Hickman p. 21 |
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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.
G. Isognomon Lightfoot 1786
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Subg. Isognomon (Isognomon) Lightfoot 1786
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†Isognomon (Isognomon) clarki Effinger 1938
†Isognomon (Isognomon) exilis Stoppani 1857
Isognomon (Isognomon) janus Carpenter 1857
†Isognomon (Isognomon) panzana Loel and Corey 1932
†Isognomon (Isognomon) rekohuensis Crampton 1988
Isognomon alatus Gmelin 1791
†Isognomon gariesensis Kensley and Pether 1986
†Isognomon isognomoides Stahl 1824
†Isognomon isognomon Linnaeus 1758
†Isognomon isognomonoides Stahl 1824
†Isognomon legumen Gmelin 1790
†Isognomon maxillata Lamarck 1819
†Isognomon nucleus Lamarck 1819
†Isognomon orientalis Hamlin 1884
Isognomon perna Linnaeus 1767
†Isognomon quadrisulcata Ihering 1897
Isognomon radiatus Anton 1838
†Isognomon repini Hautmann 2001
†Isognomon valvanoi Rossi de Garcia and Levy 1977
Invalid names: Aviculoperna [synonym]
Diagnosis
No diagnoses are available