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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Prophoca rousseaui was named by Van Beneden (1876) [No type specimen number listed by Van Beneden (1876).]. It is a 3D body fossil. Its type locality is Borsbeek, Fort 3, which is in a Tortonian lagoonal horizon in the Diest Formation of Belgium.
It was recombined as Monotherium rousseaui by Koretsky (2001); it was considered a nomen nudum by Berta et al. (2015).
It was recombined as Monotherium rousseaui by Koretsky (2001); it was considered a nomen nudum by Berta et al. (2015).
Synonymy list
| Year | Name and author |
|---|---|
| 1874 | Prophoca rousseaui Vanden Broeck p. 199 |
| 1876 | Prophoca rousseaui Van Beneden p. 801 |
| 1898 | Prophoca rousseaui Trouessart p. 382 |
| 1904 | Prophoca rousseaui Trouessart p. 285 |
| 1922 | Prophoca rousseaui Kellogg p. 116 |
| 1947 | Prophoca rousseaui Friant p. 7 |
| 1976 | Prophoca rousseaui Ray p. 394 |
| 2001 | Monotherium rousseaui Koretsky p. 86 |
| 2017 | Prophoca rousseaui Dewaele et al. p. 10 |
| 2022 | Prophoca rousseaui Berta et al. p. 9 figs. Table 1 |
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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.
†Prophoca rousseaui Van Beneden 1876
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. Dewaele et al. 2017 | Large phocine seal, similar in size to the extant (monachine) Weddell seal, L. weddellii. Prophoca rousseaui differs from all other phocines in the following combination of characters: humeral capitulum higher than lesser tubercle (also present in Leptophoca proxima, Praepusa vindobonensis and S. sintsovi) with an intertubercular groove wide and shallow (also present in hooded seal C. cristata, bearded seal E. barbatus and Leptophoca proxima); deltopectoral crest reaching distal to half-length of diaphysis, not strongly projecting anteriorly, and distal termination rather smooth (also present in C. maeotica, Leptophoca proxima, Phoca vitulinoides, Prae. vindobonensis and S. sintsovi); ventral margin of wings of the sacrum straight; ilium slightly everted laterally and gluteal fossa not developed (also present in C. cristata and E. barbatus); ilium strongly elongate; ischiac tuberosity highly raised and anteroposteriorly elongate; greater trochanter rounded; wide and shallow intercondylar groove (also present in
E. barbatus, Prae. vindobonensis and S. sintsovi); epicondylar crests of femur transversely thick but little raised. |
Measurements
No measurements are available
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| Source: f = family, c = class, uc = unranked clade | |||||
| References: Gingerich 2003, Carreño and Cronin 1993, Hendy et al. 2009, Nowak 1991 | |||||
Age range: base of the Langhian to the top of the Pleistocene or 15.97000 to 0.01170 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Burdigalian - Langhian | Belgium | Prophoca rousseaui (114830) | |
| Langhian - Serravallian | Belgium (Antwerpen) | Prophoca rousseaui (51680) | |
| Langhian - Serravallian | Belgium | Prophoca rousseaui (59123) | |
| Tortonian | Belgium (Antwerpen) | Prophoca rousseaui (type locality: 52049) | |
| Pleistocene | USA (Massachusetts) | Prophoca rousseaui (88532) |