Foraminifer assemblages from several surface samples of the Tahadart estuary, in the Atlantic coast of
Northwestern Morocco, have been analysed for the first time. A total of seventy seven species have been
taxonomically identified, fortytwo of which contained live specimens in the time of sampling. Dominant
assemblage is composed of the species Ammonia tepida and Haynesina germanica, which are accompanied
by Lobatula lobatula and Bolivina pseudoplicata in the mouth of the estuary and by Jadammina macrescens
in the middle and higher marsh areas. The high diversity index and the great number of species coming
from the marine shelf are indicative of the strong energy of this estuary, with an open connection to the
sea, even in channels far from the coastal area