NMITA:Neogene Marine Biota of Tropical America



Gephyroberyx sp.1



Specimen details:
 Sample Number: PPP2170
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: oval;
    Dorsal margin: rounded;
    Ventral margin: rounded and slightly irregular;
    Sulcus acusticus: ostial, heterosulcoid;
    Pseudocolliculum: absent;
    Colliculum: heteromorph, anterior colliculum large, posterior narrow and gently flexed dorsally;
    Excisura: wide;
    Antirostrum: short and rounded;
    Rostrum: large and sharply rounded;
    Ventral depression: shallow and enlarged;
    Dorsal depression: oval;
    Crista inferior: poorly developed at extreme;
    Crista superior: poorly developed at extreme;
    Collum: absent;
    Ostio-caudal differentiation: dorso-ventrally constricted;
    Cauda: short, oblong, upwards oriented;
    Ostium: large, oval, directed somewhat upwards;
    Posterior margin: rounded and slightly irregular,shallow notched;
    Dorsal margin sculpture: entire to slightly irregular;
    Form: -Lateral convex;
    Thickness: slightly thick;
    Form: -Mesial slightly convex;
Distribution:
    Late Pliocene: Escudo de Veraguas Fm., Bocas del Toro, Panama;

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