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Protostephanus
Taxonomy
Protostephanus was named by Cockerell (1906). It is not extant.
It was assigned to Stephanidae by Cockerell (1906), Carpenter (1992) and Aguiar and Janzen (2000); and to Stephaninae by Engel (2005), Li et al. (2017) and Ge and Tan (2023).
It was assigned to Stephanidae by Cockerell (1906), Carpenter (1992) and Aguiar and Janzen (2000); and to Stephaninae by Engel (2005), Li et al. (2017) and Ge and Tan (2023).
Species
Synonymy list
Year | Name and author |
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1906 | Protostephanus Cockerell p. 57 |
1992 | Protostephanus Carpenter |
2000 | Protostephanus Aguiar and Janzen p. 444 |
2005 | Protostephanus Engel |
2017 | Protostephanus Li et al. |
2023 | Protostephanus Ge and Tan |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: c = class, p = phylum | |||||
References: Bush and Bambach 2015, Kiessling 2004 |
Age range: Chadronian or 37.20000 to 33.90000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Chadronian | USA (Colorado) | P. sp., P. ashmeadi (106384) |