| Formica paleosibirica Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Formicinae |
| Genus: | Formica |
| Species: | F. paleosibirica |
| Binomial name | |
| Formica paleosibirica Dlussky, Rasnitsyn & Perfilieva, 2015 | |
Formica paleosibirica is an extinct species of formicid in the ant subfamily Formicinae known from fossils found in eastern Asia.
F. paleosibirica is known from a group of ants found in Russia. [1] The specimens were described from compression fossils preserved in diatomite deposits of the Bol’shaya Svetlovodnaya site. Located in the Pozharsky District, on the Pacific Coast of Russia, the fossil-bearing rocks preserve possibly Priabonian plants and animals which lived in 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 and paratype specimens were preserved in the A. A. Borissiak Paleontological Institute collections, part of the Russian Academy of Sciences. The fossils examined consisted of three partial males and two isolated fore-wings only. [1] The fossils were 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 F. paleosibirica, with the specific epithet derived from the Greek palaios, meaning "ancient" plus "Siberia" referring to the origin of the fossils. [1]
F. paleosibirica is similar in overall appearance to the Baltic amber species F. flori and F. gustawi , but differs in the shape of the genitalia, and to F. ungeri of Radoboj in Croatia, but differs in the contour of the propodeum. At the time of description the authors noted that it was not possible to tell if the F. paleosibirica males and the Formica biamoensis workers described in the same paper were separate species. [1]
Males range in length between 10–13 mm (0.39–0.51 in) with fore-wings that are between 6.1–6.7 mm (0.24–0.26 in) long. The heads are generally trapezoid in outline with rounded back margins and large oval eyes. On the antennae, the scape is longer than the head length, and protrudes past the back margin of head capsule. The propodeum has a smoothly low rounded upper profile that differs from the propodeum of F. ungeri, which forms an obtuse angle. The petiole has a triangular outline and is of similar length as it is high. The stipes on the genitalia are rounded at the tips and triangular in shape. They differ from those of F. flori and F. gustawi which have stipes that are less rounded. [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.
Gesomyrmex is a genus of ants in the subfamily Formicinae. The genus contains six extant species, known from the Indomalayan realm, and nine fossil species. Of the extant species, four are known only from workers and two only from females. The extinct species "G. expectans" and "G. miegi", formerly placed in the genus, were excluded by Dlussky et al.., 2009.
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 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.
Paraneuretus is an extinct genus of formicid in the ant subfamily Aneuretinae known from fossils found in Asia and Europe. The genus contains three middle to late Eocene age species, Paraneuretus dubovikoffi, Paraneuretus longicornis, and Paraneuretus tornquisti.
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.
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.
Pachycondyla aberrans is an extinct species of formicid in the ant subfamily Ponerinae known from a single fossil found in Russia.
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.
Klondikia is an extinct hymenopteran genus in the ant family Formicidae with a single described species Klondikia whiteae. The species is solely known from the Early Eocene sediments exposed in northeast Washington state, United States. The genus is currently not placed into any ant subfamily, being treated as incertae sedis.