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†Petrisigmoopsis Pinto & Purper 1981
urn:lsid:organismnames.com:name:563258
Microreference
46
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†Petrisigmoopsis Pinto & Purper 1981
Pinto & Purper 1981. New Lower Paleozoic ostracodes from Bolivia. Anais do Congresso Latino-Americano Paleontologia, 2(1) 1981: 45-57