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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Micragnostus insolitus
Taxonomy
Geragnostus insolitus was named by Grant (1965) [Geragnostus ? insolitus]. Its type specimen is USNM 142403 and is a 3D body fossil.
It was recombined as Micragnostus insolitus by Stitt and Straatmann (1997).
It was recombined as Micragnostus insolitus by Stitt and Straatmann (1997).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1965 | Geragnostus insolitus Grant p. 107 figs. pl. 15 f. 9, 10, 12 |
| 1970 | Geragnostus insolitus Longacre pp. 14 - 15 figs. Pl. 3, figs. 19-21 |
| 1997 | Micragnostus insolitus Stitt and Straatmann |
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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.
†Micragnostus insolitus Grant 1965
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order | |||||
| References: Hendy 2009, Kiessling 2004 | |||||
Age range: base of the Trempealeauan to the top of the Sunwaptan or 490.20000 to 488.90000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sunwaptan | Canada (Alberta) | Micragnostus insolitus (54093 81300 81303 81305 81307) | |
| Trempealeauan | USA (Wyoming) | Micragnostus insolitus (9771 9772) | |
| Trempealeauan | Canada (Yukon) | Micragnostus insolitus (55305 55307) |