ascending process
a vertical process on the anterior part of the premaxillary bone in most teleosts. Not homologous with a similar structure in Holostei (Amia and Lepisosteus), called the nasal process

Dictionary of ichthyology. 2009.

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  • bimaxillary — premaxilla (one of the paired, superficial, usually toothed, dermal bones of the upper jaw, proximal or anterior to the maxillaries; in primitive Teleostomi they comprise the middle, in more advanced forms they may comprise the whole, of the oral …   Dictionary of ichthyology

  • intermaxillary — premaxilla (one of the paired, superficial, usually toothed, dermal bones of the upper jaw, proximal or anterior to the maxillaries; in primitive Teleostomi they comprise the middle, in more advanced forms they may comprise the whole, of the oral …   Dictionary of ichthyology

  • os praemaxilla — (plural ossa praemaxillae)) premaxilla (one of the paired, superficial, usually toothed, dermal bones of the upper jaw, proximal or anterior to the maxillaries; in primitive Teleostomi they comprise the middle, in more advanced forms they may… …   Dictionary of ichthyology

  • premaxilla — (noun, plural premaxillae) one of the paired, superficial, usually toothed, dermal bones of the upper jaw, proximal or anterior to the maxillaries; in primitive Teleostomi they comprise the middle, in more advanced forms they may comprise the… …   Dictionary of ichthyology

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