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Helophorus (Mesosperchus) gracilis
Taxonomy
Hydrophilopsia gracilis was named by Prokin et al. (2010). Its type specimen is CNU-COL-LB2010018, an exoskeleton, and it is a compression fossil. Its type locality is Huangbanjigou, Chaomidian Village, CNU 2010 collection, which is in a Barremian lacustrine - large mudstone in the Yixian Formation of China.
It was recombined as Helophorus (Mesosperchus) gracilis by Fikáček et al. (2012).
It was recombined as Helophorus (Mesosperchus) gracilis by Fikáček et al. (2012).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2010 | Hydrophilopsia gracilis Prokin et al. p. 178 figs. 9, 17 |
| 2012 | Helophorus (Mesosperchus) gracilis Fikáček et al. p. 107 fig. 80 |
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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.
†Helophorus (Mesosperchus) gracilis Prokin et al. 2010
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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: Late/Upper Barremian or 130.00000 to 125.45000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Barremian | China (Liaoning) | Hydrophilopsia gracilis (111716) |