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Ectodemites
Taxonomy
Ectodemites was named by Cooper (1941).
It was assigned to Amphissitidae by Crasquin-Soleau (1997); and to Kirkbyidae by Kochetova (2003).
It was assigned to Amphissitidae by Crasquin-Soleau (1997); and to Kirkbyidae by Kochetova (2003).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1941 | Ectodemites Cooper |
| 1997 | Ectodemites Crasquin-Soleau p. 52 |
| 2003 | Ectodemites Kochetova p. 74 |
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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. †Ectodemites Cooper 1941
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†Ectodemites globosa Ishizaki 1964
†Ectodemites plummeri Cooper 1946
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 0.475 | 0.470 | 0.480 | 0.475 | 0.007 | |
| valve height | 2 | 1.02 | 0.970 | 1.08 | 1.02 | 0.078 |
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| Source: o = order, c = class | |||||
| References: Alvarez et al. 2008, Kiessling 2004 | |||||
Age range: base of the Chesterian to the top of the Capitanian or 335.40000 to 259.51000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chesterian | USA (Iowa) | E. primus (3296) | |
| Chesterian - Alportian | USA (Wyoming) | E. warei (5689 5690 5710) | |
| Artinskian | Canada (British Columbia) | E. plummeri (106671 106672 106673) | |
| Capitanian | Japan | E. globosa (109844) |