. Devonian fishes of Iowa. Fishes, Fossil; Paleontology; Paleontology. Fig. 28. Fig. 28. Dinichthys pustulosus Eastm. Middle Devonian; Iowa. Restoration of head- shield, dorsal aspect, showing arrangement of cranial pKtes and course of sensory canals, x J. Lettering as in figure 27 (see page 192).. Fig Fig. 29. Neoceratodus forsteri (KreffU. Dorsal aspect of cranial roof, drawn as if flat- tened out to same extent as in Dinichthys. Cartilaginous portions dotted, and dermal plates lettered to correspond with those in Arthrodires. The undivided anterior median plate (P + R) is commonly termed th

---

. Devonian fishes of Iowa. Fishes, Fossil; Paleontology; Paleontology. Fig. 28. Fig. 28. Dinichthys pustulosus Eastm. Middle Devonian; Iowa. Restoration of head- shield, dorsal aspect, showing arrangement of cranial pKtes and course of sensory canals, x J. Lettering as in figure 27 (see page 192).. Fig Fig. 29. Neoceratodus forsteri (KreffU. Dorsal aspect of cranial roof, drawn as if flat- tened out to same extent as in Dinichthys. Cartilaginous portions dotted, and dermal plates lettered to correspond with those in Arthrodires. The undivided anterior median plate (P + R) is commonly termed the "; x Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Eastman, Charles Rochester, 1868-1918; Iowa Geological Survey. Des Moines : Iowa Geological Survey

---

Size: 1694px × 1475px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, booksub, booksubjectpaleontology