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  • Boreosomus gillioti Priem, 1924


    Images:

    oilshale

    Taxonomy

    Kingdom: Animalia
    Phylum: Chordata
    Class: Actinopteri Cope 1871
    Order: Palaeonisciformes Hay 1902
    Family: Palaeoniscidae Vogt 1852
    Genus: Boreosomus
    Species: Boreosomus gilioti
    Author Citation Priem, 1924

    Geological Time Scale

    Eon: Phanerozoic
    Era: Mesozoic
    Period: Triassic
    Sub Period: None
    Epoch: Early
    International Age: Dienerian

    Stratigraphy

    Beaufort Group
    Sakamena Formation

    Biostratigraphy

    Lystrosaurus and Cynognathus Zone
    Fish and Ammonite Horizon

    Provenance

    Acquired by: Purchase/Trade

    Dimensions

    Length: 12 cm

    Location

    Ambilobe
    Antsiranana Province
    Diana Region
    Madagascar

    Comments

    Small to medium sized fish (10 to 20 cm / 4 to 8"). Slender body, dorsal fin small, located before the body's midpoint. Caudal fin divided. Strong, rectangular scales.

    Boreosomus-Rek-L3.jpg

     

     

    References:

    Priem, F. (1924) Paléontologie de Madagascar, XII. Les poissons fossiles. Ann. Paléont., 13: 107-132; Paris




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