Phyloblattidae Schneider, 1983
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publication ID |
https://doi.org/ 10.4202/app.2008.0109 |
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persistent identifier |
https://treatment.plazi.org/id/DC7B87AA-3406-945A-ACE8-F862FB7DFA1D |
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treatment provided by |
Felipe |
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scientific name |
Phyloblattidae Schneider, 1983 |
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Family Phyloblattidae Schneider, 1983
Gen. et sp. indet.
Fig. 4 View Fig .
Material.—Entire basal half and anterior part of distal half of right forewing (PIN 3559/8013) from Bon Tsagaan Nuur (Barremian or Aptian, Early Cretaceous).
Description.—One of the largest known Mesozoic cockroaches, forewing length up to 50 mm. Forewing venation rich, with a typical connection of main branches with intercalary veins ( Fig. 4B, C View Fig ). R not differentiated into R1 and RS, M moderately rich, CuA dense, extremely expanded with local irregularities in spacing of veins.
Discussion.—The specimen under study can be referred to Phyloblattidae , which is easily distinguishable from all other groups of Mesozoic Dictyoptera , based on the persistence of the following plesiomorphic characters: curved homonomous veins and intercalaries with irregular spacing, and the presence of terminal branchlets in several branches of CuA. The presence of a typical venation pattern with intercalary veins is apomorphic with respect to all Palaeozoic families.
This specimen cannot be formally distinguished from Palaeozoic representatives of the family, although the time difference of more than 110 million years suggests that it could be a new genus and species.
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