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Taxonomy
Anoplonassa was named by Cope (1869) [Sepkoski's age data: T Mi-m T Mi-u Sepkoski's reference number: 746]. Its type is Anoplonassa forcipata. It was considered monophyletic by Lambert (2005) and Uhen et al. (2008).
It was assigned to Sirenia by Gill (1872); to Halitheriidae by Cope (1890); to Halicoridae by Trouessart (1898); to Physeteridae by Palmer (1904); to Ziphiinae by Hay (1902), Trouessart (1904) and Hay (1930); to Hyperoodontidae by McKenna and Bell (1997); to Cetacea by Cope (1869) and Sepkoski (2002); and to Ziphiidae by True (1907), Abel (1919), Kellogg (1928), Simpson (1945), Mead (1975), Carroll (1988), Fordyce and de Muizon (2001), Lambert (2005), Uhen et al. (2008) and Berta (2017).
It was assigned to Sirenia by Gill (1872); to Halitheriidae by Cope (1890); to Halicoridae by Trouessart (1898); to Physeteridae by Palmer (1904); to Ziphiinae by Hay (1902), Trouessart (1904) and Hay (1930); to Hyperoodontidae by McKenna and Bell (1997); to Cetacea by Cope (1869) and Sepkoski (2002); and to Ziphiidae by True (1907), Abel (1919), Kellogg (1928), Simpson (1945), Mead (1975), Carroll (1988), Fordyce and de Muizon (2001), Lambert (2005), Uhen et al. (2008) and Berta (2017).
Species
A. forcipata (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1869 | Anoplonassa Cope p. 189 figs. Plate V, Fig. 5 |
| 1872 | Anoplonassa Gill p. 92 |
| 1890 | Anoplonassa Cope p. 698 |
| 1898 | Anoplonassa Trouessart p. 1003 |
| 1902 | Anoplonassa Hay p. 597 |
| 1904 | Anoplonassa Palmer p. 106 |
| 1904 | Anoplonassa Trouessart p. 775 |
| 1907 | Anoplonassa True p. 105 |
| 1919 | Anoplonassa Abel p. 767 |
| 1928 | Anoplonassa Kellogg p. 32 figs. Table 1 |
| 1930 | Anoplonassa Hay p. 584 |
| 1945 | Anoplonassa Simpson p. 101 |
| 1975 | Anoplonassa Mead p. 750 figs. Table 1 |
| 1988 | Anoplonassa Carroll |
| 1997 | Anoplonassa McKenna and Bell p. 382 |
| 2001 | Anoplonassa Fordyce and de Muizon p. 179 |
| 2002 | Anoplonassa Sepkoski |
| 2005 | Anoplonassa Lambert p. 446 |
| 2008 | Anoplonassa Uhen et al. p. 578 |
| 2017 | Anoplonassa Berta p. 162 |
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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
| Reference | Diagnosis | |
|---|---|---|
| M. D. Uhen et al. 2008 | Slender; shallow symphysis in proportion to the length, with strong convexity of its sides; upturned and expanded termination of the symphysis; large pair of nearly round and very slightly depressed terminal alveoli; rudimentary alveolar groove, with a pair of small and shallow elliptical alveoli not far distant from the terminal pair; large size and peculiar disposition of the inferior terminal foramina (True, 1907b). |
Measurements
No measurements are available
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| Source: f = family, subo = suborder, o = order | |||||
| References: Uhen 2004, Nowak 1991 | |||||
Age range: base of the Aquitanian to the top of the Pleistocene or 23.03000 to 0.01170 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aquitanian - Langhian | USA (North Carolina) | A. sp. (48887) | |
| Pliocene - Pleistocene | USA (Georgia) | A. forcipata (51589) |