Apthoroblattina
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| Apthoroblattina Fossil range: Late Permian |
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Fossil
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Apthoroblattina is an extinct genus of primitive cockroach-like Blattopterans from the Permian Period, and probably the largest insect of its day. It was of general cockroach-like build, but with a length of approximately 50 cm (1 ft 8 in) it was about six times larger than the largest modern cockroach.

