WebSep 19, 2007 · Primitive ants from Cretaceous amber of France now include an alate gyne in one genus (Haidomyrmodes) and workers in three distinct genera (Haidomyrmodes, Sphecomyrmodes and Gerontoformica). Furthermore, the occurrence of two workers of Sphecomyrmodes in a single piece of amber suggests that they were foraging socially, as … WebAll Cretaceous records of ants are reviewed, and evidence originally given for their placement is evaluated. Cretaceous Formicoidea preserved in rocks lack preservation of critical ant synapomorphies like the metapleural gland, which are …

In search of ant ancestors PNAS

WebAnt Chemosensory Biology. Ants are a globally pervasive family of insects that exhibit highly complex eusocial behavior critical to colony structure, consisting of a strict division of … WebIn the course of ongoing revision of the ant genus Myrmica Latreille, 1804, we located, in the collections of the Russian and Polish Academies of Sciences, pieces of Baltic Amber (Late Eocene, ca. 40 Ma; earlier this amber was considered to be Oligocene, e.g., see Wheeler, 1915; Larsson, 1978; Bolton, 1995; Dlussky, 1997), that each contained a fossilized … カットマン 粒高ラバー おすすめ

Scientists Find One Specimen of Bizarre Primitive Ant - New York …

WebJan 14, 2008 · Many of these characteristics are associated with the limited caste divergence exhibited in this phylogenetically primitive group. Although a few non-ponerine species exhibit some of these preconditions, gamergates have not been found outside the Ponerinae, which alone exhibit the combination of traits leading to queen elimination and … WebSep 18, 2008 · The species Martialis heureka is the most primitive of living ants, its DNA least changed in the more than 100 million years that ants have existed. WebDec 5, 2000 · Comparisons of Nothomyrmecia with plesiomorphic (“primitive”) members of other ant lineages provided important hypotheses about the morphology of the earliest … カットマン 回転 ラバー