Triporula biarmata occurs as a Miocene fossil from Victoria, and is also recorded from the Recent of Australia. However, these are clearly distinct species.
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| Above: Fossil from Muddy Creek | |
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| Above: Recent specimen from Bass Strait | |
Original description: Microporella macropora var. biarmata Waters, 1882.
Locality: Mount Gambier (South Australia)
Type specimen: NHM D32794
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