. Bulletins of American paleontology. 18 Bulletin 331 Glossaidax didyma coticazae gradually evolved into G. didyma didyma in Pliocene time, during which their morphologies entirely overlapped. Each Pliocene pop- ulation has been assigned to a subspecies herein, based on its dominant morphology. In the present study, three Pliocene populations from localities Goroku,. Glossaulax hagenoshitensis Glossaulax hagenoshitensis Text-figure views of ( hyugensis (Shuto. 1964). G. nodai Majima, 1985. and (i hagenoshitensis (.Shuto, 1964), showing the ontogenetic (solid arrow) and adul
. Bulletins of American paleontology. 18 Bulletin 331 Glossaidax didyma coticazae gradually evolved into G. didyma didyma in Pliocene time, during which their morphologies entirely overlapped. Each Pliocene pop- ulation has been assigned to a subspecies herein, based on its dominant morphology. In the present study, three Pliocene populations from localities Goroku,. Glossaulax hagenoshitensis Glossaulax hagenoshitensis Text-figure views of ( hyugensis (Shuto. 1964). G. nodai Majima, 1985. and (i hagenoshitensis (.Shuto, 1964), showing the ontogenetic (solid arrow) and adult variations for parietal callus and umbilical 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 Paleontological Research Institution (Ithaca, N. Y. ); Columbia University. Ithaca, N. Y. , Paleontological Research Institution [etc. ]
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