Beroroha and Mandronarivo area (Triassic of Madagascar)

Where: Atsimo-Andrefana, Madagascar (21.7° S, 45.2° E: paleocoordinates 50.7° S, 30.3° E)

• coordinate estimated from map

When: Middle Sakamena Formation (Sakamena Group), Dienerian (250.5 - 251.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; lithified shale and lithified, nodular limestone

• shale , interbedded with sandstone and limestone nodules

Size class: macrofossils

Collected by J.-P. Lehman & Mr. Germain in 1954

• Repository: Muséum National d'Histoire Naturelle, Paris

Primary reference: J.-P. Lehman, C. Chateau, M. Laurain and M. Nauche. 1959. Paléontologie de Madagascar XXVIII. - Les poissons de la Sakamena moyenne. Annales de Paléontologie 45:175-219 [M. Clapham/P. Vazquez/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 154183: authorized by Matthew Clapham, entered by Priscilla Vazquez on 30.01.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Dipnoi - Ceratodontidae
Microceratodus angolensis Texeira 1947 lungfish
 Dipnoi -
Paraceratodus germaini n. gen. n. sp.
Paraceratodus germaini n. gen. n. sp. Lehman et al. 1959 lungfish
 Palaeonisciformes -
Sakamenichthys germaini n. gen. Lehman et al. 1959
 Palaeonisciformes - Bobasatraniidae
 Saurichthyiformes - Saurichthyidae
Saurichthys sp. Agassiz 1834 ray-finned fish
"Saurichthys madagascariensis" = Saurichthys (Eosaurichthys) madagascariensis Piveteau 1945 ray-finned fish
 Pholidopleuriformes - Pholidopleuridae
Australosomus sp. Pivetau 1930 ray-finned fish
 Parasemionotiformes - Parasemionotidae
Parasemionotus labordei Priem 1924 ray-finned fish
Parasemionotus besairiei n. sp. Lehman et al. 1959 ray-finned fish
Thomasinotus sp. Lehman 1952 ray-finned fish
Watsonulus eugnathoides Piveteau 1935 ray-finned fish
Chondrichthyes
 Elasmobranchii -
Elasmobranchii indet. elasmobranch
prismatic calcified cartilage