A hemipteran nymph of the sternorrhynchan lineage, placed in the family Protopsyllidiidae is the first found in the fossil record, based on an inclusion in amber from the Lower Cretaceous of Hammana / Mdeyrij, Abeih F...A hemipteran nymph of the sternorrhynchan lineage, placed in the family Protopsyllidiidae is the first found in the fossil record, based on an inclusion in amber from the Lower Cretaceous of Hammana / Mdeyrij, Abeih Formation, Central Lebanon. Based on distinctive features such as a median dorsal elevation and the presence of a large, conical, exposed, setiferous anal tube, the fossil is placed in Talaya batraba gen. et sp. nov. and the newly erected taxon is compared to known nymphs of extinct Protopsyllidiidae. The evolutionary traits of the family and its relatives are considered.展开更多
The present study describes a new genus and species Unicohormaphis sorini,which belongs to the subfamily Cerataphidinae.The contemporary distribution of aphids belonging to the Hormaphididae family is summarized and a...The present study describes a new genus and species Unicohormaphis sorini,which belongs to the subfamily Cerataphidinae.The contemporary distribution of aphids belonging to the Hormaphididae family is summarized and analyzed.According to the obtained data,the climate warming in Eocene was conducive to the expansion of the family over the areas of Europe.Subsequent climate changes,resulting from epeirogenic and orogenic movements towards the end of Eocene,led to a considerable cooling and drying of climate in the northern hemisphere.These processes contributed to the shrinking down of areas covered by subtropical forests,which constituted the habitat of Hormaphididae（Cerataphidinae）.Retaining their way of life,the Cerataphidinae were forced to limit their distribution,and the representatives of the family in Europe became completely extinct.展开更多
文摘A hemipteran nymph of the sternorrhynchan lineage, placed in the family Protopsyllidiidae is the first found in the fossil record, based on an inclusion in amber from the Lower Cretaceous of Hammana / Mdeyrij, Abeih Formation, Central Lebanon. Based on distinctive features such as a median dorsal elevation and the presence of a large, conical, exposed, setiferous anal tube, the fossil is placed in Talaya batraba gen. et sp. nov. and the newly erected taxon is compared to known nymphs of extinct Protopsyllidiidae. The evolutionary traits of the family and its relatives are considered.
文摘The present study describes a new genus and species Unicohormaphis sorini,which belongs to the subfamily Cerataphidinae.The contemporary distribution of aphids belonging to the Hormaphididae family is summarized and analyzed.According to the obtained data,the climate warming in Eocene was conducive to the expansion of the family over the areas of Europe.Subsequent climate changes,resulting from epeirogenic and orogenic movements towards the end of Eocene,led to a considerable cooling and drying of climate in the northern hemisphere.These processes contributed to the shrinking down of areas covered by subtropical forests,which constituted the habitat of Hormaphididae（Cerataphidinae）.Retaining their way of life,the Cerataphidinae were forced to limit their distribution,and the representatives of the family in Europe became completely extinct.
