Sakamena

Sakamena is a village near Betroka in the region of Anosy in Madagascar.

Sakamena is also the name of a Permian sedimentary geological formation that has yielded many vertebrate fossil, including Triadobatrachus (the first lissamphibian[1]), Claudiosaurus, one of the first aquatic reptiles,[2] and the Coelurosauravus, the first gliding reptile.[3][4][5]

Sakamena is also the name of a coal field that lies near the Sakoa coal field. Both the Sakamena and Sakoa coal fields are under appraisal and development by Madagascar Consolidated Mining, a subsidiary of Red Island Minerals, a company founded by Sam Malin. Other coal fields adjacent to the Sakamena region include the Ianapera, Imaloto and Vohibory fields.

References

Ascarrunz, Eduardo; Rage, Jean-Claude; Legreneur, Pierre; Laurin, Michel (14 June 2016). "Triadobatrachus massinoti, the earliest known lissamphibian (Vertebrata: Tetrapoda) re-examined by μCT scan, and the evolution of trunk length in batrachians". Contributions to Zoology. 85 (2): 201–234. doi:10.1163/18759866-08502004. ISSN 1875-9866.
De Buffrénil, Vivian; Mazin, Jean‐Michel (1 September 1989). "Bone histology of claudiosaurus germaini (reptilia, claudiosauridae) and the problem of pachyostosis in aquatic tetrapods". Historical Biology. 2 (4): 311–322. doi:10.1080/08912968909386509. ISSN 0891-2963.
EVANS, SUSAN E.; HAUBOLD, HARTMUT (1 July 1987). "A review of the Upper Permian genera Coelurosauravus, Weigeltisaurus and Gracilisaurus (Reptilia: Diapsida)". Zoological Journal of the Linnean Society. 90 (3): 275–303. doi:10.1111/j.1096-3642.1987.tb01356.x. ISSN 0024-4082.
Frey, Eberhard; Sues, Hans-Dieter; Munk, Wolfgang (7 March 1997). "Gliding Mechanism in the Late Permian Reptile Coelurosauravus". Science. 275 (5305): 1450–1452. doi:10.1126/science.275.5305.1450.
Buffa, Valentin; Frey, Eberhard; Steyer, J.-Sébastien; Laurin, Michel (4 March 2021). "A new cranial reconstruction of Coelurosauravus elivensis Piveteau, 1926 (Diapsida, Weigeltisauridae) and its implications on the paleoecology of the first gliding vertebrates". Journal of Vertebrate Paleontology. 41 (2): e1930020. doi:10.1080/02724634.2021.1930020. ISSN 0272-4634.

23°19′S 45°47′E

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[1] Ascarrunz, Eduardo; Rage, Jean-Claude; Legreneur, Pierre; Laurin, Michel (14 June 2016). "Triadobatrachus massinoti, the earliest known lissamphibian (Vertebrata: Tetrapoda) re-examined by μCT scan, and the evolution of trunk length in batrachians". Contributions to Zoology. 85 (2): 201–234. doi:10.1163/18759866-08502004. ISSN 1875-9866.

[2] De Buffrénil, Vivian; Mazin, Jean‐Michel (1 September 1989). "Bone histology of claudiosaurus germaini (reptilia, claudiosauridae) and the problem of pachyostosis in aquatic tetrapods". Historical Biology. 2 (4): 311–322. doi:10.1080/08912968909386509. ISSN 0891-2963.

[3] EVANS, SUSAN E.; HAUBOLD, HARTMUT (1 July 1987). "A review of the Upper Permian genera Coelurosauravus, Weigeltisaurus and Gracilisaurus (Reptilia: Diapsida)". Zoological Journal of the Linnean Society. 90 (3): 275–303. doi:10.1111/j.1096-3642.1987.tb01356.x. ISSN 0024-4082.

[4] Frey, Eberhard; Sues, Hans-Dieter; Munk, Wolfgang (7 March 1997). "Gliding Mechanism in the Late Permian Reptile Coelurosauravus". Science. 275 (5305): 1450–1452. doi:10.1126/science.275.5305.1450.

[5] Buffa, Valentin; Frey, Eberhard; Steyer, J.-Sébastien; Laurin, Michel (4 March 2021). "A new cranial reconstruction of Coelurosauravus elivensis Piveteau, 1926 (Diapsida, Weigeltisauridae) and its implications on the paleoecology of the first gliding vertebrates". Journal of Vertebrate Paleontology. 41 (2): e1930020. doi:10.1080/02724634.2021.1930020. ISSN 0272-4634.