NMITA:Neogene Marine Biota of Tropical America



Upeneus sp.1



Specimen details:
 Sample Number: PPP2187
Type Status: nontype
Scale Bar is 1 mm
Type: SEM
Orientation: mesial
Locality: Bocas del Toro, Bocas del Toro, Panama

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Morphologic Description:

    Otolith shape: approximately triangular-ovate;
    Thickness: moderately thin;
    Form: -Mesial slightly convex;
    Form: -Lateral slightly concave;
    Dorsal margin: flattened, crested posteriorly;
    Dorsal margin sculpture: irregular;
    Ventral margin: slightly rounded and crenate;
    Posterior margin: oblique, rounded and slightly irregular;
    Sulcus acusticus: ostial, heterosulcoid;
    Colliculum: heteromorph, colliculi very indistinct;
    Pseudocolliculum: absent;
    Ostium: narrow;
    Cauda: straight;gently flexed along its length, tip strongly flexed, expanded, and ending close to the postero margin;
    Ostio-caudal differentiation: dorsally constricted;
    Collum: absent;
    Crista superior: ridge-like from ostium to mid-caudal pit, poorly developed around pit;
    Crista inferior: well developed along entire sulcus;
    Dorsal depression: elongate;
    Ventral depression: absent;
    Rostrum: large and pointed;
    Antirostrum: minute and rounded;
    Excisura: moderate, notch very shallow, angle wide;
Distribution:
    Late Pliocene: Escudo de Veraguas Fm., Bocas del Toro, Panama;

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