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Hyotheridium
Taxonomy
Hyotheridium was named by Gregory and Simpson (1926). It is not extant.
It was assigned to Deltatheridiinae by Van Valen (1967); and to Deltatheridiidae by Gregory and Simpson (1926), Simpson (1928) and McKenna and Bell (1997).
It was assigned to Deltatheridiinae by Van Valen (1967); and to Deltatheridiidae by Gregory and Simpson (1926), Simpson (1928) and McKenna and Bell (1997).
Species
Synonymy list
Year | Name and author |
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1926 | Hyotheridium Gregory and Simpson pp. 6, 11 |
1928 | Hyotheridium Simpson p. 2 |
1967 | Hyotheridium Van Valen |
1997 | Hyotheridium McKenna and Bell |
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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.
G. †Hyotheridium Gregory and Simpson 1926
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†Hyotheridium dobsoni Gregory and Simpson 1926
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: f = family, subc = subclass | |||||
References: Fox 2004, Ji et al. 2002, Lillegraven 1979 |
Age range: Late/Upper Campanian or 83.50000 to 70.60000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Late/Upper Campanian | Mongolia (Omnogov Aimak) | H. sp. (37184) |