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Enteropneusta
Taxonomy
Enteropneusta is a class. It is extant.
It was assigned to Hemichordata by Bulman (1970), Zrzavy et al. (1998), Sepkoski (2002), Nielsen (2012) and Cameron (2016).
It was assigned to Hemichordata by Bulman (1970), Zrzavy et al. (1998), Sepkoski (2002), Nielsen (2012) and Cameron (2016).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1970 | Enteropneusta Bulman p. V13 |
| 1998 | Enteropneusta Zrzavy et al. |
| 2002 | Enteropneusta Sepkoski |
| 2012 | Enteropneusta Nielsen p. 336 |
| 2016 | Enteropneusta Cameron p. 331 |
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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.
Cl. Enteropneusta
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Fm. Spengelidae Willey 1899
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Whittington et al. 1997, Hendy et al. 2009 | |||||
Age range
Maximum range based only on fossils: base of the Delamaran to the top of the Bucklandi or 511.20000 to 189.60000 Ma
Minimum age of oldest fossil (stem group age): 506.5 Ma
Minimum age of oldest fossil (stem group age): 506.5 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Delamaran | Canada (British Columbia) | Spartobranchus tenuis (121962) | |
| Marjumian | USA (Utah) | Spartobranchus sp. (230682) | |
| Westphalian D | USA (Illinois) | Mazoglossus ramsdelli (127721) Saccoglossus testa, Mazoglossus ramsdelli (112638) | |
| Bucklandi | Italy | Megaderaion sinemuriense (90673) |