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Bristolia fragilis
Taxonomy
Bristolia fragilis was named by Palmer and Halley (1979). Its type specimen is USNM 177190 and is a 3D body fossil. Its type locality is Grapevine Mountains (USGS 4144-CO), which is in a Dyeran shallow subtidal lime mudstone in the Carrara Formation of California.
Synonymy list
| Year | Name and author |
|---|---|
| 1979 | Bristolia fragilis Palmer and Halley p. 65 figs. Plate 2, figures 1-6 |
| 1999 | Bristolia fragilis Lieberman p. 128 |
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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.
†Bristolia fragilis Palmer and Halley 1979
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, o = order, c = class | |||||
| References: Hendy et al. 2009, Hendy 2009, Aberhan et al. 2004 | |||||
Age range: Dyeran or 515.30000 to 511.20000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Dyeran | USA (California) | Bristolia fragilis (10613 type locality: 149610 149649 151378 230439) | |
| Dyeran | USA (Nevada) | Bristolia fragilis (149551 149555 149556) |