Bivalvia - Pholadomyida - Megadesmidae
Full reference: K. Nakazawa and N.D. Newell. 1968. Permian bivalves of Japan. Memoirs of the Faculty of Science, Kyoto University, Series of Geology and Mineralogy 35(1):1-108
Belongs to Pyramus according to Z.J. Fang 1987
Sister taxa: Pyramus aenigmaeformis, Pyramus concentricus, Pyramus igori, Pyramus laevis, Pyramus myiformis, Pyramus myriformis, Pyramus nelliae, Pyramus permianus, Pyramus primigenius, Pyramus silicius, Pyramus simmetricus
Type specimen: Its type locality is Kawanishi Primary School, Gujo, Oe-cho, Kyoto Prefecture, which is in a Changhsingian marine shale in the Gujo Formation of Japan
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Permian of China (2 collections), Japan (1)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.