Bivalvia - Ostreida - Malleidae

Alternative combination: Perna gaudichaudi

Synonym: Perna chilensis Conrad 1855

Belongs to Isognomon according to M. Griffin and S. N. Nielsen 2008

Sister taxa: Isognomon (Hippochaeta), Isognomon (Iranognomon), Isognomon (Isognomon), Isognomon (Melina), Isognomon (Mulletia), Isognomon (Parviperna), Isognomon (Semignomon), Isognomon alatus, Isognomon bicolor, Isognomon gariesensis, Isognomon isognomoides, Isognomon isognomon, Isognomon isognomonoides, Isognomon legumen, Isognomon maxillata, Isognomon nucleus, Isognomon orientalis, Isognomon perna, Isognomon quadrisulcata, Isognomon radiatus, Isognomon repini, Isognomon valvanoi

Type specimens:

• Isognomon gaudichaudi: MNHN Gg2002/121, a shell
• Perna chilensis:

Distribution: found only at Trench at Motherwell, 3 km north of Swartkops (Pliocene of South Africa)

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Specimen images are retrieved through the ePANDDA API.