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Enigmaconus
Taxonomy
Enigmaconus was named by MacKinnon (1985) [Sepkoski's age data: Cm uMid-u Sepkoski's reference number: 529].
It was assigned to Enigmaconidae by MacKinnon (1985); to Mollusca by Sepkoski (2002); and to Yochelcionellidae by Parkhaev (2002) and Bouchet et al. (2005).
It was assigned to Enigmaconidae by MacKinnon (1985); to Mollusca by Sepkoski (2002); and to Yochelcionellidae by Parkhaev (2002) and Bouchet et al. (2005).
Species
Synonymy list
Year | Name and author |
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1985 | Enigmaconus MacKinnon pp. 72 - 73 |
2002 | Enigmaconus Parkhaev p. 36 |
2002 | Enigmaconus Sepkoski |
2005 | Enigmaconus Bouchet et al. pp. 71, 241 |
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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. †Enigmaconus MacKinnon 1985
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†Enigmaconus parvus MacKinnon 1985
†Enigmaconus pyramidalis Kouchinsky et al. 2013
Diagnosis
Reference | Diagnosis | |
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D.I. MacKinnon 1985 | Low, slightly cyrtoconic univalves with a well developed transverse plate, or pegma, that projects ventrally from the anterodorsal shell wall, thus dividing the shell interior into two cavities of markedly unequal size; posterior cavity appreciably larger than the anterior. Shell showing relatively little lateral compression; aperture elongate oval. |
Measurements
No measurements are available
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Source: f = family, c = class | |||||
Reference: Hendy et al. 2009 |
Age range: base of the Botomian to the top of the Boomerangian or 516.00000 to 499.00000 Ma
Collections (3 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Botomian | Russian Federation (Siberia) | E. pyramidalis (174258 174260) | |
Boomerangian | New Zealand (Nelson) | E. parvus (7897) |