Figure 12. A in Comparative osteology and phylogenetic systematics of fossil and living bony-tongue fishes (Actinopterygii, Teleostei, Osteoglossomorpha)

Figure 12. A specimen identified as †Joffrichthys sp. (FMNH PF12171b). This specimen is a black latex peel dusted with ammonium chloride made from a natural mould of one half of the specimen. This specimen was collected from the Sentinel Butte Formation, North Dakota – the same locality as †J. triangulpterus Newbrey & Bozek, 2000. The type species of the genus, †J. symmetropterus Li & Wilson, 1996b, is known from the Paskapoo Formation of Alberta, Canada. Although this specimen consists of only a disarticulated skull, pectoral girdle, pectoral fin and pelvic fin, much detail of the morphology is visible. The specimen was identified as †Joffrichthys based on the combination of the shape of the opercle and preopercle and the morphology of the parasphenoid and maxilla. Note that the subopercle is large, extending along the entire ventral edge of the opercle. Scale in millimeters. Anterior facing left.