Derived, still living cockroach genus Cariblattoides (Blattida: Blattellidae) from the Eocene sediments of Green River in Colorado, USA

作者：Vrsansky Peter^*; Vidlicka L' ubomir; Ciampor Fedor Jr; Marsh Finnegan

来源：Insect Science, 2012, 19(2): 143-152.

DOI：10.1111/j.1744-7917.2010.01390.x

• Blattida = Blattaria = Blattodea
• Cariblattoides
• Eocene
• fossil insects
• Green River
• Tertiary cockroaches

Cariblattoides labandeirai sp.n. from the Eocene sediments of Green River in Colorado, USA bear only two plesiomorphies, but also several significant autapomorphies within the advanced and highly derived living cockroach genus. Thus, Cariblattoides with extant occurrence in the Caribbean and South America was historically common in the Nearctic, and represents important evidence for the occurrence of derived living genera of cockroaches similar to 50 Ma ago. Generally, the vast majority of living genera were absent during the Palaeocene, thus the diversification of most living cockroach lineages near the Palaeocene/Eocene boundary must have been extremely rapid. Females of living C. suave, the type species, have identical (sophisticated) coloration of pronotum, but the most related living taxa are C. piraiensis and C. fontesi from Brazil (supported by phylogenetical analysis).

• 出版日期2012-4