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Headonornis
Taxonomy
Headonornis was named by Harrison and Walker (1976). Its type is Agnopterus hantoniensis.
It was assigned to Telmabatidae by Harrison and Walker (1976); and to Presbyornithidae by Kurochkin et al. (2002).
It was assigned to Telmabatidae by Harrison and Walker (1976); and to Presbyornithidae by Kurochkin et al. (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Headonornis Harrison and Walker p. 333 |
| 2002 | Headonornis Kurochkin et al. p. 9 |
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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: o = order | |||||
| References: Sedinger 1997, Marsh 1875 | |||||
Age range
Maximum range based only on fossils: Late/Upper Eocene or 37.71000 to 33.90000 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Eocene | United Kingdom (England) | H. hantoniensis (181272) |