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Exechonella
Taxonomy
Exechonella is a genus. It is extant. Its type is Exechonella paucipunctata.
It was assigned to Arachnopusiidae by Bassler (1953) and Brown (1956); to Cheilostomata by Sepkoski (2002); and to Exechonellidae by Schmidt (2003), Bock (2006), Gordon and Taylor (2015) and Di Martino and Taylor (2015).
It was assigned to Arachnopusiidae by Bassler (1953) and Brown (1956); to Cheilostomata by Sepkoski (2002); and to Exechonellidae by Schmidt (2003), Bock (2006), Gordon and Taylor (2015) and Di Martino and Taylor (2015).
Species
E. chathamensis, E. paucipunctata (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1953 | Exechonella Bassler p. G167 |
| 1956 | Exechonella Brown |
| 2002 | Exechonella Sepkoski |
| 2003 | Exechonella Schmidt |
| 2006 | Exechonella Bock |
| 2015 | Exechonella Di Martino and Taylor |
| 2015 | Exechonella Gordon and Taylor |
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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. Exechonella
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†Exechonella chathamensis Gordon and Taylor 2015
Exechonella paucipunctata Brown 1956
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Smith et al. 2006 | |||||
Age range
Maximum range based only on fossils: base of the Early/Lower Eocene to the top of the Holocene or 55.80000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 48.6 Ma
Minimum age of oldest fossil (stem group age): 48.6 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Eocene | New Zealand (Chatham Island) | E. chathamensis (172944) | |
| Serravallian | Indonesia | E. sp. (173650) | |
| Messinian | Morocco | E. sp. (34724) | |
| Pliocene | Australia (South Australia) | E. paucipunctata (172911 172913) | |
| Holocene | USA (Florida) | E. antillea (97607 97608 97609 97610) |