. Bulletin of the British Museum (Natural History), Geology. Pmx + Ant Man An9. 10 m m Ssc Fig. 75. Elonichthys serratus Traquair. Restoration of skull in dorsal and lateral views, from Moy-Thomas & Dyne (1938). the normal condition in the Palaeoniscoidea ; as Watson comments, " the division of the orbital bones foreshadows that in the Semionotidae ". Thirdly, between the posterior circumorbitals and the anterior rim of the preoper- cular is a series of suborbital bones, three in Elonichthys caudalis, two in Elonichthys serratus (Text-fig. 75). These could quite easily provide th
. Bulletin of the British Museum (Natural History), Geology. Pmx + Ant Man An9. 10 m m Ssc Fig. 75. Elonichthys serratus Traquair. Restoration of skull in dorsal and lateral views, from Moy-Thomas & Dyne (1938). the normal condition in the Palaeoniscoidea ; as Watson comments, " the division of the orbital bones foreshadows that in the Semionotidae ". Thirdly, between the posterior circumorbitals and the anterior rim of the preoper- cular is a series of suborbital bones, three in Elonichthys caudalis, two in Elonichthys serratus (Text-fig. 75). These could quite easily provide the source for the suborbitals of the Semionotidae. Fourthly, the supraorbital canal in Elonichthys caudalis ends in the frontal and does not pass on into the parietal; in this respect Watson indicates that it may show a condition intermediate between the normal Palaeoniscoid and that of Oxy- gnathus. In this respect it could also be intermediate between that of the normal Palaeoniscoid and 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 British Museum (Natural History). London : BM(NH)
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