Siwa
Basic information
Sample name: Siwa

Reference: W. H. Hamilton. 1973. A lower Miocene mammalian fauna from Siwa, Egypt. Palaeontology 16(2):275-281 [ER 4037]
Geography
Country: Egypt


Coordinate: 29° 13' N, 25° 40' E
Coordinate basis: stated in text

Time interval: Middle Miocene

Zone: Langhian

Geography comments: "near Siwa Oasis" (basis of the coordinate given by the authors)
thought to be early Miocene and the same age as Gebel Zelten and Moghara
the former spans the middle Early Miocene to the Middle Miocene according to Wessels et al. (2003, Coloquios de Paleontología)
the latter is MN4/5 or effectively Langhian according to Pickford et al. (2010, Acta Palaeontologica Polonica)
so on balance, this fauna is most likely Middle Miocene and specifically Langhian

•
Environment
Lithology: not described

Habitat comments: the geological context appears to be unknown

Methods
Life forms: carnivores,ungulates,marine mammals,other reptiles,fishes

Sample size: 8 specimens

Sampling comments: "In 1920 the British Museum (Natural History) purchased from Lady Moon" this "small collection"

Metadata
Sample number: 4452

Contributor: John Alroy

Enterer: John Alroy

Created: 2024-11-11 12:52:05

Modified: 2024-11-11 12:52:05

Abundance distribution
7 species
6 singletons
total count 8
geometric series index: 98.0
Fisher's α: 26.782
geometric series k: 0.8909
Hurlbert's PIE: 0.8214
Shannon's H: 1.9062
Good's u: 0.2841
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Register
Creodonta indet.1
Schizodelphis aff. sulcatus1
†Gomphotherium angustidens1
†Brachypotherium snowi1
a vertebra might belong to this species or the next one
Brachyodus africanus = †Sivameryx africanus1
Pristis sp.1
Tomistoma dowsoni2