Mt. Eliva (Sakamena Fm.) (Permian of Madagascar)

Also known as Sakamena River Valley; Morondava Basin

Where: Tulear, Madagascar (24.0° S, 44.4° E: paleocoordinates 53.0° S, 25.2° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Lower Sakamena Formation (Sakamena Group), Lopingian (259.9 - 252.2 Ma)

• "Recent work by Goubin (1965) on spores and pollen from numerous localities in Madagascar divides the Lower Sakamena into three zones, all of which are indicated as Upper Permian. The terrestrial vertebrates occur in the uppermost of the three zones recognized by Goubin, and so at the very top of the Permian." (Carroll, 1981 p. 318)

• member-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Preservation: mold/impression, concretion

Primary reference: R. L. Carroll. 1981. Plesiosaur Ancestors from the Upper Permian of Madagascar. Philosophical Transactions of the Royal Society of London B 293(1066):315-383 [J. Mueller/T. Liebrecht/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 85494: authorized by Johannes Mueller, entered by Torsten Liebrecht on 02.01.2009, edited by Richard Butler and Joseph Flannery-Sutherland

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Eosuchia - Younginidae
Thadeosaurus colcanapi n. gen. n. sp.
Thadeosaurus colcanapi n. gen. n. sp. Carroll 1981 diapsid
MNHN (PM) 1908-11-13/1908-11-19 (type), 1908-11-8/1908-11-20, 1908-5-1, 1908-11-2, 1908-11-4 to 1908-11-7, 1908-11-9, 1908-11-10, 1908-11-12, 1908-11-14 to 1908-11-16, 1908-11-19 ; additional specimens are taken from Currie & Carroll (1984, J. Vert. Paleont. vol. 4); note that most of these specimens were formerly assigned to Tangasaurus or "Datheosaurus"
 Eosuchia - Tangasauridae
Hovasaurus boulei n. gen. n. sp.3
Hovasaurus boulei n. gen. n. sp.3 Piveteau 1926 diapsid
MNHN 1908-21-2, 7, counterpart slabs (lectotype), plus more than 300 specimens in the MNHN, SAM and AMNH
 Eosuchia -
Acerosodontosaurus piveteaui n. gen. n. sp.2, "Coelurosauravus elivensis n. gen. n. sp." = Coelurosauravus elivensis1, "Daedalosaurus madagascariensis n. gen. n. sp." = Coelurosauravus elivensis1
Acerosodontosaurus piveteaui n. gen. n. sp.2 Currie 1980 diapsid
MNHN 1908-32-57 (type); formerly identified as Tangasaurus
"Coelurosauravus elivensis n. gen. n. sp." = Coelurosauravus elivensis1 Piveteau 1926 diapsid
MNHN (IP) 1908-11-21a (type), 1908-11-22a
"Daedalosaurus madagascariensis n. gen. n. sp." = Coelurosauravus elivensis1 Piveteau 1926 diapsid
MNHN (IP) 1908-5-2 (type)
Osteichthyes
 Palaeonisciformes - Atherstoniidae