New Mesozoic cockroaches (Blattaria : Blattulidae) from Jehol Biota of western Liaoning in China

作者：Wang Tiantian; Ren Dong^*; Liang Jun Hui; Shih Chungkun

来源：Annales Zoologici, 2007, 57(3): 483-495.

• Insecta
• Blattodea
• Blattulidae
• variability
• new genus
• new species
• late Jurassic/Early Cretaceous boundary
• Jehol Biota
• Yixian Formation
• China

Macaroblattula ellipsoides gen. et sp. nov., Elisanta cuboides sp. nov. and E. extenuata (Ren, 1995) of the dominant cockroach family Blattulidae are described from the Late Jurassic/Early Cretaceous Yixian Formation of western Liaoning in China. Forewing venation of E. extenuata reveals low variation (CV for total number of veins = 6.22), which indicates active flight of this advanced taxon. Presence of Macaroblattula gen. nov. suggests a generic variation and high adaptability of the family. Taxonomic composition supports the transitional Late Jurassic/Early Cretaceous age of the Yixian Formation and dominance of the family Blattulidae within assemblage indicates their significance in food chain.

• 出版日期2007
• 单位首都师范大学