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  • Guizhouamia bellula Liu et al., 2002





    Kingdom: Animalia
    Phylum: Chordata Haeckel 1874
    Class: Actinopteri Cope 1871
    Order: Amiiformes Hay 1929
    Family: Amiidae Bonaparte , 1938
    Genus: Guizhouamia
    Species: Guizhouamia bellula
    Author Citation Liu et al., 2002

    Geological Time Scale

    Eon: Phanerozoic
    Era: Mesozoic
    Period: Triassic
    Sub Period: None
    Epoch: Middle
    International Age: Ladinian (late)


    Zhuganpo Formation


    Acquired by: Purchase/Trade


    Length: 10 cm


    Honghe County
    Yunnan Province


    Taxonomy from Liu et al., 2002.

    Liu et al. 2002 consider Guizhouamia to be the oldest Amiidae known to date. However, Tintori and Lombardo 2005 cast doubt on the assignment to the Amiidae.

    Diagnosis from Liu et al. 2002, p. 463: "Fishes of small size. Body slenderly fusiform, Notochord present . Vertebrae fewer in number . Centra incompletely ossified. Neural arches and spines , haemal arches and spines , parapophysis of abdominal vertebrae , and ribs completely ossified. Supraneural plate-like and fewer in number . Incipiently diplospondylous vertebrae developed in preural caudal region. Operculum larger than suboperculum , and higher than broad. Preoperculum narrow and high , vertical. Paired fins small, with fewer rays. Dorsal and anal fins of typical Amiid-type in shape and structure. Tail hemihetercercal. Rays simply bifurcated."


    Liu et al. (2002) ON THE MOST PRIMITIVE AMIID FISH FROM UPPER TRIASSIC OF XINGYI, GUIZHOU. Acta Palaeontologica Sinica, 41 (3) :461 - 463.

    Liu G. B., Yin G. Z., Wang X. H., Luo Y. M., and Wang S. Y.  (2003) NEW DISCOVERED FISHES FROM KEICHOUSAURUS BEARING HORIZON OF LATE TRIASSIC IN XINGYI OF GUIZHOU. Acta Palaeontologica Sinica , 42 (3) :346 - 366

    Tintori, A. and Lombardo, C.R.S. (2005) Tethyan Triassic Fishes from Europe to China. Intervento presentato al 65. convegno SVP Annual meeting tenutosi a Phoenix (AZ-USA) nel 2005-10.

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