FIGURE 7. Agassizia excentrica Valenciennes, in Agassiz and Desor, 1847, San Gregorio Formation, Falcón state, Venezuela, UNEFM-IF-030. 1, detail of petals, showing anterior petal with only one row of pore pairs, and short posterior petal with less developed upper part of the anterior series of the pore pairs. 2, test, lateral view. Scale bar equals 1 mm.