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Metoptoma
Taxonomy
Metoptoma was named by Phillips (1836) [Sepkoski's age data: C Vise P Dora Sepkoski's reference number: 797,1130]. It is the type genus of Metoptomatidae.
It was reranked as Tryblidium (Metoptoma) by Cresswell (1893).
It was assigned to Tryblidium by Cresswell (1893); to Patellogastropoda by Sepkoski (2002); and to Metoptomatidae by Knight et al. (1960), Bouchet et al. (2005).
It was reranked as Tryblidium (Metoptoma) by Cresswell (1893).
It was assigned to Tryblidium by Cresswell (1893); to Patellogastropoda by Sepkoski (2002); and to Metoptomatidae by Knight et al. (1960), Bouchet et al. (2005).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1836 | Metoptoma Phillips |
| 1893 | Tryblidium (Metoptoma) Cresswell p. 41 |
| 1960 | Metoptoma Knight et al. p. 232 |
| 2002 | Metoptoma Sepkoski |
| 2005 | Metoptoma Bouchet et al. p. 108 |
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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. †Metoptoma Phillips 1836
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†Metoptoma alceste Billings 1865
†Metoptoma analoga Walcott 1884
†Metoptoma cornutaforme Walcott 1879
†Metoptoma devonica Walcott 1884
†Metoptoma elliptica Phillips 1836
†Metoptoma imbricatum Phillips 1836
†Metoptoma peroccidens Walcott 1884
†Metoptoma phillipsi Walcott 1884
†Metoptoma pileus Phillips 1836
†Metoptoma recurva Berkey 1898
†Metoptoma retrorsa Whitfield 1882
†Metoptoma robusta Billings 1865
†Metoptoma similis Whitfield 1882
†Metoptoma texana Yochelson 1960
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 10.0 |
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| Source: o = order, c = class | |||||
| Reference: Hendy et al. 2009 | |||||
Age range: base of the Richmondian to the top of the Kungurian or 449.60000 to 274.40000 Ma
Collections (14 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Richmondian | Canada (Quebec) | M. alceste (63559 63625) | |
| Emsian | South Africa | M. capense (35578) | |
| Arundian | Poland (Swietokrzyskie) | M. sp. (60116) | |
| Brigantian | United Kingdom (England) | M. elliptica, M. imbricatum, M. pileus (67670) | |
| Serpukhovian - Bashkirian | Antarctica | M. sp. (41799) | |
| Gzhelian | USA (Texas) | M. texana (43476 43477) | |
| Asselian | USA (Texas) | M. texana (43474 43478 43481 43482 43556) | |
| Kungurian | USA (Texas) | M. texana (43586) |