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Taxonomy
Nepinae was named by Latreille (1802). It is extant. Its type is Nepa. 
It was assigned to Nepidae by Popov (1971), Nel and Paicheler (1992).
It was assigned to Nepidae by Popov (1971), Nel and Paicheler (1992).
  Subtaxa
  
Laccotrephes, Nepa (type genus)  
Synonymy list
| Year | Name and author | 
|---|---|
| 1802 | Nepinae Latreille p. 252 | 
| 1971 | Nepinae Popov | 
| 1992 | Nepinae Nel and Paicheler p. 160 | 
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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.
Subfm. Nepinae Latreille 1802
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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
Maximum range based only on fossils:  base of the Chadronian to the top of the Burdigalian or 37.00000 to 15.98000 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number | 
|---|---|---|---|
| Priabonian | France (Gard) | Nepa monteilsensis (144529) | |
| Chadronian | USA (Colorado) | Zaitha vulcanica (106381) | |
| Early/Lower Miocene | Spain (Castellon) | Nepa sp. (140796) | |
| Burdigalian | China (Shandong) | Laccotrephes robustus (128551 128552) |