NMITA:Neogene Marine Biota of Tropical America



Merluccius sp.1



Specimen details:
 Sample Number: PPP3055
Type Status: nontype
Scale Bar is 1 mm
Type: SEM
Orientation: mesial
Locality: Araya, Araya, Venezuela

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Morphologic Description:

    Otolith shape: oblong and large;
    Ventral margin: slightly flat, entire to slightly irregular;
    Sulcus acusticus: mesial, homosulcoid;
    Posterior margin: sharply rounded;
    Dorsal depression: oval, shallow and large covering most of area;
    Crista inferior: a low ridge from mid-ostium to mid-cauda, poorly developed at extremes;
    Crista superior: a low ridge from mid-ostium to mid-cauda, poorly developed at extremes;
    Collum: absent;
    Ostio-caudal differentiation: ventrally constricted;
    Cauda: elongate, colliculum oval and depressed in center;
    Ostium: approximately oval and slightly depressed in center;
    Pseudocolliculum: poorly developed;
    Excisura: moderately wide, notch very shallow to absent;
    Antirostrum: rounded;
    Rostrum: sharply rounded;
    Ventral depression: absent;
    Colliculum: homomorph, two colliculi almost equal in size and shape;
    Dorsal margin sculpture: sinuate and lobed;
    Thickness: moderately thin;
    Form: -Mesial slightly flat;
    Dorsal margin: slightly rounded to flat;
    Form: -Lateral convex;
Distribution:
    Early Pliocene: Cubagua Fm., Araya, Venezuela;

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