Derived,still living cockroach genus Cariblattoides (Blattida: Blattellidae) from the Eocene sediments of Green River in Colorado,USA |
| |
| Authors: | Peter Vršanský L′ubomír Vidlička Fedor Čiampor Jr Finnegan Marsh |
| |
| Affiliation: | 1. Geological Institute, Slovak Academy of Sciences, Bratislava, Slovakia;2. Paleontological Institute, Russian Academy of Sciences, Moscow, Russia;3. Institute of Zoology, Slovak Academy of Sciences;4. Department of Biology, Faculty of Education, Comenius University, Bratislava, Slovakia;5. Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA |
| |
| Abstract: | Abstract 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 ～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). |
| |
| Keywords: | Blattida = Blattaria = Blattodea Cariblattoides Eocene fossil insects Green River Tertiary cockroaches |
|
|
