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Ischnochiton
Taxonomy
Ischnochiton was named by Gray (1847) [Sepkoski's age data: J Plie-u R]. It is extant.
It was assigned to Ischnochitoninae by Berry (1922), Pacaud and Le Renard (1995), Wells and Houston (2001); to Neoloricata by Sepkoski (2002); and to Ischnochitonidae by Abbott (1974), Wu and Lee (2024).
It was assigned to Ischnochitoninae by Berry (1922), Pacaud and Le Renard (1995), Wells and Houston (2001); to Neoloricata by Sepkoski (2002); and to Ischnochitonidae by Abbott (1974), Wu and Lee (2024).
Species
I. (Haploplax), I. (Heterozona), I. (Ischnochiton), I. (Rhombochiton), I. (Simplischnochiton), I. (Stenosemus), I. anserinus (syn. I. (Simplischnochiton) anserinus), I. goederti, I. marloffsteinensis, I. martinelli, I. pectinatus, I. rissoi (syn. I. (Ischnochiton) rissoi, I. (Simplischnochiton) rissoi)
Synonymy list
| Year | Name and author |
|---|---|
| 1847 | Ischnochiton Gray |
| 1922 | Ischnochiton Berry p. 461 |
| 1974 | Ischnochiton Abbott p. 394 |
| 1995 | Ischnochiton Pacaud and Le Renard p. 152 |
| 2001 | Ischnochiton Wells and Houston p. 57 |
| 2002 | Ischnochiton Sepkoski |
| 2024 | Ischnochiton Wu and Lee |
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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. Ischnochiton Gray 1847
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Subg. †Ischnochiton (Haploplax) Pilsbry 1894
Subg. †Ischnochiton (Heterozona) Carpenter 1879
Subg. †Ischnochiton (Ischnochiton) Gray 1847
Subg. Ischnochiton (Rhombochiton) Berry 1919
Subg. †Ischnochiton (Simplischnochiton) Van Belle 1974
Subg. †Ischnochiton (Stenosemus) Middendorff 1847
†Ischnochiton anserinus Laghi 1977
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Invalid names: Ischnochiton (Simplischnochiton) anserinus Laghi 1977 [synonym]
†Ischnochiton goederti Dell'Angelo et al. 2011
†Ischnochiton marloffsteinensis Fiedel and Keupp 1988
†Ischnochiton martinelli Angelo et al. 2004
Ischnochiton pectinatus Sowerby 1840
†Ischnochiton rissoi Payraudeau 1826
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Invalid names: Ischnochiton (Ischnochiton) rissoi Angelo and Smriglio 1999 [synonym], Ischnochiton (Simplischnochiton) rissoi Angelo 1999 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Age range
Maximum range based only on fossils: base of the Margaritatus to the top of the Late/Upper Pleistocene or 192.90000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 184.2 Ma
Minimum age of oldest fossil (stem group age): 184.2 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Margaritatus | Germany | I. marloffsteinensis (139314) | |
| Priabonian | USA (Washington) | I. sp. A (40733) | |
| Priabonian - Rupelian | USA (Washington) | I. sp. B, I. goederti (180196) | |
| Late/Upper Pliocene | USA (California) | I. sp. (238436) | |
| Late/Upper Pliocene | Italy | I. anserinus (175395) I. rissoi, I. anserinus, I. martinelli (175549 175552) | |
| Pleistocene | USA (California) | I. radians, I. decipiens (201624) I. sp. (240573 240574) | |
| Middle Pleistocene | USA (Florida) | I. sp. (61310) | |
| Late/Upper Pleistocene | USA (California) | I. sp. (240595) |