NMITA:Neogene Marine Biota of Tropical America



Hildebrandia flava (Goode & Bean, 1896)



Specimen details:
 Sample Number: OA-2
Type Status: nontype
Scale Bar is 1 mm
Type: SEM
Orientation: mesial
Locality: Paraguana, Paraguana, Venezuela

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Morphologic Description:

    Otolith shape: oval;
    Form: -Lateral slightly convex;
    Dorsal margin sculpture: slightly irregular;
    Posterior margin: sharply rounded and irregular;
    Colliculum: homomorph, single low colliculum;
    Ostio-caudal differentiation: undifferentiated, sulcus approximately oval, no constriction;
    Pseudocolliculum: absent;
    Excisura: narrow, notch absent;
    Antirostrum: absent;
    Rostrum: large and sharply rounded;
    Ventral depression: absent;
    Dorsal depression: oval and shallow;
    Crista inferior: well developed;
    Crista superior: well developed in mid to posterior sulcus;
    Collum: absent;
    Sulcus acusticus: para-ostial, archaesulcoid;
    Ventral margin: rounded and slightly irregular;
    Dorsal margin: rounded;
    Form: -Mesial slightly convex;
    Thickness: moderately thick;
Distribution:
    Early Miocene: Cantaure Fm., Paraguana, Venezuela;

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