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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Hemiptychina quadricostata
Taxonomy
Composita quadricostata was named by Branson (1930). It is a 3D body fossil. Its type locality is Wind River Mountains (Top Limestone), which is in a Lopingian carbonate limestone in the Park City Formation of Wyoming.
It was recombined as Hemiptychina quadricostata by Wardlaw (1977).
It was recombined as Hemiptychina quadricostata by Wardlaw (1977).
Sister species lacking formal opinion data
Synonymy list
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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.
†Hemiptychina quadricostata Branson 1930
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: Wuchiapingian or 259.51000 to 254.14000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wuchiapingian | USA (Utah) | Hemiptychina quadricostata (39557 39561) | |
| Wuchiapingian | USA (Nevada) | Hemiptychina quadricostata (39449 39453 39459 39519 39758 39761) | |
| Lopingian | USA (Wyoming) | Composita quadricostata (87153) |