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Hexatractiella
Taxonomy
Hexatractiella was named by Mehl (1996) [Sepkoski's age data: S Wenl]. It is not extant.
It was assigned to Protospongioidea by Mehl (1996); to Reticulosa by Sepkoski (2002); and to Protospongiidae by Rigby et al. (1998) and Finks and Rigby (2004).
It was assigned to Protospongioidea by Mehl (1996); to Reticulosa by Sepkoski (2002); and to Protospongiidae by Rigby et al. (1998) and Finks and Rigby (2004).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1996 | Hexatractiella Mehl |
| 1998 | Hexatractiella Rigby et al. |
| 2002 | Hexactractiella Sepkoski |
| 2004 | Hexatractiella Finks and Rigby p. 351 |
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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. †Hexatractiella Mehl 1996
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†Hexatractiella nevadensis Rigby and Stuart 1988
†Hexatractiella pseudonevadensis Rigby et al. 1998
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Bambach et al. 2007 | |||||
Age range: base of the Botomian to the top of the Lochkovian or 516.00000 to 410.80000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Botomian | China (Anhui) | H. dongzhiensis (96614) | |
| Wenlock | Canada (British Columbia) | H. nevadensis, H. pseudonevadensis (120526) | |
| Lochkovian | USA (Nevada) | Diagoniella nevadensis (120531) |