| Pachycondyla aberrans | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Genus: | Pachycondyla |
| Species: | †P. aberrans |
| Binomial name | |
| †Pachycondyla aberrans Dlussky, Rasnitsyn & Perfilieva, 2015 | |
Pachycondyla aberrans is an extinct species of formicid in the ant subfamily Ponerinae known from a single fossil found in Russia.
P. aberrans is known from a single ant found in Russia. [1] The specimen was described from a compression fossil preserved in diatomite deposits of the Bol’shaya Svetlovodnaya site. The site is exposed on the bank of Barachek Creek 3 km (1.9 mi) upstream from the creek's confluence with the Bol’shaya Svetlovodnaya River [2] in the Pozharsky District, on the Pacific Coast of Russia. The fossil-bearing rocks preserve possibly Priabonian plants and animals which lived in and around a small lake near a volcano. The site has been attributed to either the Maksimovka or Salibez Formations and compared to the Bembridge Marls and Florissant Formation, both of which are Priabonian in age. [1]
At the time of description, the holotype adult specimen, number PIN 3429/104 was preserved in the A. A. Borissiak Paleontological Institute collections, part of the Russian Academy of Sciences. The fossil was first described by the trio of paleomyrmecologists Gennady Dlussky, Alexandr Rasnitsyn and Ksenia Perfilieva. In the type description, Dlussky, Rasnitsyn and Perfilieva named the species P. aberrans, with the specific epithet derived the Latin aberrans meaning "aberrant" or "to deviate". [1]
P. aberrans is one of two Pachycondyla species that were described by Dlussky, Rasnitsyn and Perfilieva from Bol’shaya Svetlovodnaya, the other species P. oligocenica being described from a male. [1]
The incomplete adult of P. aberrans is missing its head and a portion of the gaster, making determination of its sex impossible, with male or a queen as possibilities. The preserved portions of the ant indicate a body length of 6–7 mm (0.24–0.28 in), with a tall petiole node between the thorax and the gaster. The forewing is also incomplete, with an estimated length of approximately 5.7 mm (0.22 in). The venation in the wings is reduced in development, with the rs-m cross vein not fully developed and enclosing the rm cell. The cell is present in forewing of P. oligocenica, distinguishing the two species. [1]
Pachycondyla is a ponerine genus of ants found in the Neotropics.
Ypresiomyrma is an extinct genus of ants in the subfamily Myrmeciinae that was described in 2006. There are four species described; one species is from the Isle of Fur in Denmark, two are from the McAbee Fossil Beds in British Columbia, Canada, and the fourth from the Bol’shaya Svetlovodnaya fossil site in Russia. The queens of this genus are large, the mandibles are elongated and the eyes are well developed; a stinger is also present. The behaviour of these ants would have been similar to that of extant Myrmeciinae ants, such as solitary foraging for arthropod prey and never leaving pheromone trails. The alates were poor flyers due to their size, and birds and animals most likely preyed on these ants. Ypresiomyrma is not assigned to any tribe, and is instead generally regarded as incertae sedis within Myrmeciinae. However, some authors believe Ypresiomyrma should be assigned as incertae sedis within Formicidae.
Emplastus is an extinct morphogenus of ants in the subfamily Dolichoderinae, known from fossils found in Asia and Europe. The genus contains twelve species described from sites in England, Eastern Europe and Far Eastern Russia.
Casaleia is an extinct genus of ants in the formicid subfamily Amblyoponinae described by Pagliano & Scaramozzino in 1990 from fossils found in Europe. The genus contains four species dating from the Eocene to Miocene, Casaleia eocenica, Casaleia inversa, Casaleia longiventris, Casaleia orientalis.
Pachycondyla eocenica is an extinct species of ant in the formicid subfamily Ponerinae described from fossils found in Europe. P. eocenica is one of six Lutetian Pachycondyla species.
Pachycondyla lutzi is an extinct species of ant in the formicid subfamily Ponerinae described by from fossils found in Europe. P. lutzi is one of six Lutetian Pachycondyla species.
Pachycondyla? messeliana is an extinct species of ants in the formicid subfamily Ponerinae described by from a fossil found in Europe. P.? messeliana is one of six Lutetian Pachycondyla species.
Pachycondyla petiolosa is an extinct species of ant in the formicid subfamily Ponerinae described by from a fossil found in Europe. P. parvula is one of six Lutetian Pachycondyla species.
Pachycondyla petrosa is an extinct species of ant in the formicid subfamily Ponerinae described from a fossil found in Europe. P. petrosa is one of six Lutetian Pachycondyla species.
Dolichoderus pinguis is an extinct species of formicid in the ant subfamily Dolichoderinae known from a fossil found in Asia. The species is one of a number in the genus described from fossils.
Liometopum incognitum is an extinct species of formicid in the ant subfamily Dolichoderinae known from fossils found in eastern Asia.
Formica biamoensis is an extinct species of formicid in the ant subfamily Formicinae known from fossils found in eastern Asia.
Formica paleosibirica is an extinct species of formicid in the ant subfamily Formicinae known from fossils found in eastern Asia.
Gesomyrmex macrops is an extinct species of formicid in the ant subfamily Formicinae known from a fossil found in eastern Asia.
Gesomyrmex magnus is an extinct species of formicid in the ant subfamily Formicinae known from a fossil found in eastern Asia.
Gesomyrmex incertus is an extinct species of formicid in the ant subfamily Formicinae known from a fossil found in eastern Asia.
Pachycondyla oligocenica is an extinct species of formicid in the ant subfamily Ponerinae known from a fossil found in eastern Asia.
Proceratium petrosum is an extinct species of formicid in the ant subfamily Proceratiinae known from a fossil found in eastern Asia.
Proceratium eocenicum is an extinct species of formicid in the ant subfamily Proceratiinae known from fossils found in the Baltic region.
Agastomyrma is an extinct genus of formicid in the ant subfamily Myrmicinae known from the fossil species Agastomyrma laticeps found in eastern Asia.