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Georgiacetinae
Taxonomy
Georgiacetinae was named by Gingerich et al. (2005). It was considered paraphyletic by Uhen (2008).
It was assigned to Protocetidae by Gingerich et al. (2005), Bianucci and Landini (2007), Uhen and Berndt (2008), Uhen (2008) and Gingerich (2019).
It was assigned to Protocetidae by Gingerich et al. (2005), Bianucci and Landini (2007), Uhen and Berndt (2008), Uhen (2008) and Gingerich (2019).
Subtaxa
Synonymy list
Year | Name and author |
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2005 | Georgiacetinae Gingerich et al. p. 200 |
2007 | Georgiacetinae Bianucci and Landini p. 45 figs. Table 2.1 |
2008 | Georgiacetinae Uhen p. 589 |
2008 | Georgiacetinae Uhen and Berndt p. 57 |
2019 | Georgiacetinae Gingerich p. 5 |
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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. †Georgiacetinae Gingerich et al. 2005
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Diagnosis
Reference | Diagnosis | |
---|---|---|
P. D. Gingerich et al. 2005 | Georgiacetines, like protocetines, have generalized skulls retaining three incisors in the premaxilla and three molars in the maxilla. Most or all have a derived, reduced pelvic girdle, with the sacrum consisting of a single centrum with or without substantial auricular processes that articulated with the ilia of the
innominates. Hind limbs are not yet known, but reduction of the sacrum suggests that these were probably reduced as well. Georgiacetus itself appears not to have had a distinct sacral vertebra, and the ilium of the preserved innominate shows no evidence of articulation with an auricular process (Hulbert et al., 1998). Locomotion was probably powered more by the tail than the feet. |
Measurements
No measurements are available
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Reference: Uhen 2004 |
Age range: Priabonian or 38.00000 to 33.90000 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Priabonian | Egypt (Fayum) | Aegicetus gehennae (137544) Protocetidae indet. (164491) |