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Aesopomum
Taxonomy
Aesopomum was named by Havlicek (1965) [Sepkoski's age data: S Ludl-u D Emsi Sepkoski's reference number: 25,651]. It is not extant.
It was assigned to Schuchertellinae by Johnson (1970); to Areostrophiinae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
It was assigned to Schuchertellinae by Johnson (1970); to Areostrophiinae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1965 | Aesopomum Havlicek |
| 1970 | Aesopomum Johnson p. 111 |
| 2000 | Aesopomum Williams et al. p. 678 |
| 2002 | Aesopomum Sepkoski |
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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. †Aesopomum Havlicek 1965
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†Aesopomum delicatum Rong et al. 1974
†Aesopomum varistriatus Johnson 1970
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. G. Johnson 1970 | The genus is characterized by its irregular biconvex shape, its ornament of fine irregular striae, moderately high triangular interarea, and complete pseudodeltidium in the pedicle valve; and by its posteriorly directed bilobed cardinal process in the brachial valve. |
Measurements
No measurements are available
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| Source: g = genus, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Hendy 2009, Aberhan et al. 2004 | |||||
Collections (31 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ludlow | China (Yunnan) | A. delicata (27796) A. sp. (25818) | |
| Ludlow | Canada (Yukon) | A. prongsi (23078) | |
| Ludlow - Pridoli | China (Nei Mongol) | A. sp. (27903) | |
| Ludlow - Pridoli | China (Yunnan) | A. delicatum (25787 25794 25825 25826) | |
| Pridoli | Canada (Yukon) | A. sp. (14003 14004 14007) | |
| Pridoli | Canada (Yukon Territory) | A. prongsi (26657) | |
| Lochkovian | USA (New York) | A. sp. (24813) | |
| Lochkovian | USA (Nevada) | A. sp. (590) | |
| Lochkovian | Canada (Yukon) | A. sp. (14009 14012 14015) A. varistriata, A. regularis (24931) | |
| Lochkovian - Zlichovian | Canada (Yukon) | A. sp. (603) | |
| Siegen | USA (Nevada) | A. varistriatus (164726 164730) | |
| Pragian | Australia (New South Wales) | A. sp. (25695) | |
| Pragian | Russian Federation (Sverdlovskaya Oblast) | A. aesopeum (81750) | |
| Pragian | Czech Republic (Prague) | A. aesopeum (12071) | |
| Pragian | Canada (Yukon) | A. regularis (43969) A. sp., A. varistriata (24933) A. varistriata, A. regularis (39394 43713) | |
| Early/Lower Emsian | China (Heilongjiang) | A. chinense (25844 25845) | |
| Zlichovian | Czech Republic (Barrandia) | A. aesopeum (12112) |