WELL-PRESERVED SPECIMENS OF THE SPONGES GONDEKIA (HETERACTINIDA) AND PSEUDOHYDNOCERAS (HEXACTINELLIDA), MIDDLE DEVONIAN OF NEW-YORK-STATE

Part and counterpart of a well-preserved specimen of Gondekia lancifer (Reimann, 1945a), and a well-preserved specimen of Pseudohydnoceras e rraticum Reimann, 1935, are described from the Wanakah Member of the M iddle Devonian, Givetian, Ludlowville Formation, of western New York S tate. The specimen of Gondekia is only the second articulated specimen known and is more complete than the holotype. It has an intact skelet on of felted sexiradiates of three orders of spicules; the largest has rays approximately 2 mm long. The specimen of Pseudohydnoceras has pr eserved hexactine-based spicules in a dictyid skeleton, described for the species for the first time.