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Hellwigia obsoleta
Taxonomy
Protohellwigia obsoleta was named by Brues (1910). Its type specimen is MCZ 2242, an exoskeleton, and it is a compression fossil. Its type locality is Florissant, Station 17, which is in a Chadronian lacustrine - large shale in the Florissant Formation of Colorado.
It was recombined as Hellwigia obsoleta by Townes (1966), Menier et al. (2004), Watanabe (2014).
It was recombined as Hellwigia obsoleta by Townes (1966), Menier et al. (2004), Watanabe (2014).
Synonymy list
| Year | Name and author |
|---|---|
| 1910 | Protohellwigia obsoleta Brues p. 67 fig. 50 |
| 1966 | Hellwigia obsoleta Townes p. 132 |
| 2004 | Hellwigia obsoleta Menier et al. p. 92 |
| 2014 | Hellwigia obsoleta Watanabe p. 215 |
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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.
†Hellwigia obsoleta Brues 1910
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Kiessling 2004, Bush and Bambach 2015 | |||||
Age range: Chadronian or 37.00000 to 33.90000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chadronian | USA (Colorado) | Protohellwigia obsoleta (type locality: 106382 124527) |