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Messelepone
''Messelepone'' is an extinct genus of ants in the formicid subfamily Ponerinae described from fossils found in Europe. ''M. leptogenoides'' is the only species assigned to the genus, which is one of several Lutetian Ponerinae genera. History and classification When described, ''Messelepone'' was known from two fossil insects which are compression-impression fossils preserved in layers of soft sedimentary rock. Along with other well preserved insect fossils, the ''Messelepone'' specimens were collected from layers of the Lutetian Messel pit World Heritage Site. The formation is composed of brown coals, oil shales, and bituminous shale, which preserved numerous insects, fish, birds, reptiles, and terrestrial mammals as a notable lagerstätten. The area is a preserved maar lake which initially formed approximately 47 million years ago as the result of volcanic explosions. At the time of description, the holotype queen and paratype male specimens were preserved in the Sen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Messelepone Leptogenoides Paratype SMFMEI7198
''Messelepone'' is an extinct genus of ants in the formicid subfamily Ponerinae described from fossils found in Europe. ''M. leptogenoides'' is the only species assigned to the genus, which is one of several Lutetian Ponerinae genera. History and classification When described, ''Messelepone'' was known from two fossil insects which are compression-impression fossils preserved in layers of soft sedimentary rock. Along with other well preserved insect fossils, the ''Messelepone'' specimens were collected from layers of the Lutetian Messel pit World Heritage Site. The formation is composed of brown coals, oil shales, and bituminous shale, which preserved numerous insects, fish, birds, reptiles, and terrestrial mammals as a notable lagerstätten. The area is a preserved maar lake which initially formed approximately 47 million years ago as the result of volcanic explosions. At the time of description, the holotype queen and paratype male specimens were preserved in the S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ponerinae
Ponerinae is a subfamily of ants in the Poneromorph subfamilies group, with about 1,600 species in 47 extant genera, including ''Dinoponera gigantea'' - one of the world's largest species of ant. Mated workers have replaced the queen as the functional egg-layers in several species of ponerine ants. In such queenless species, the reproductive status of workers can only be determined through ovarian dissections. Description and identification They are most easily identified from other subfamilies by possessing a single-node petiole with a constriction before the second gastral segment. They are rare examples of stinging ants. In addition to the sting, they can also be characterized by a single segmented petiole and the constriction of the first and second segment of the gaster. They can also be identified by the shape of their head. Female workers have twelve segmented antennae, whereas male workers have 13 segmented antennae. Behavior These ants typically nest in soil, for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Messel Pit
The Messel pit (german: Grube Messel) is a disused quarry near the village of Messel ( Landkreis Darmstadt-Dieburg, Hesse) about southeast of Frankfurt am Main, Germany. Bituminous shale was mined there. Because of its abundance of well-preserved fossils dating from the middle of the Eocene, it has significant geological and scientific importance. Over 1000 species of plants and animals have been found at the site. After almost becoming a landfill, strong local resistance eventually stopped these plans and the Messel Pit was declared a UNESCO World Heritage Site on 9 December 1995. Significant scientific discoveries about the early evolution of mammals and birds are still being made at the Messel Pit, and the site has increasingly become a tourist site as well. History Brown coal and later oil shale was actively mined from 1859. The pit first became known for its wealth of fossils around 1900, but serious scientific excavation only started around the 1970s, when falling oil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protopone
''Protopone'' is an extinct genus of ants in the formicid subfamily Ponerinae described from fossils found in Europe and Asia. There are seven described species placed into the genus, ''Protopone? dubia'', ''Protopone germanica'', ''Protopone magna'', ''Protopone oculata'', ''Protopone primigena'', ''Protopone sepulta'', and ''Protopone vetula''. ''Protopone'' is one several Lutetian Ponerinae genera. History and classification When first described, ''Protopone'' was known from a single fossil insect included in a transparent chunk of Sakhalin amber. When the fossil was described it was part of the amber collections housed in the Paleontological Institute, Russian Academy of Sciences. The amber was recovered from fossil bearing rocks in the Sakhalin region of Eastern Russia. At the time of description, the amber was estimated to date from the Paleocene. Further research has revised the amber, which originates from the Lower Due Formation, to be of Middle Eocene age. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyrtopone
''Cyrtopone'' is an extinct genus of ants in the formicid subfamily Ponerinae described from fossils found in Europe. There are four described species placed into the genus, ''Cyrtopone curiosa'', ''Cyrtopone elongata'', ''Cyrtopone microcephala'', and ''Cyrtopone striata''. ''Cyrtopone'' is one several Lutetian Ponerinae genera. History and classification When described, ''Cyrtopone'' was known from four fossil insects which are compression-impression fossils preserved in layers of soft sedimentary rock. Along with other well preserved insect fossils, the ''Cyrtopone'' specimens were collected from layers of the Lutetian Messel pit World Heritage Site. The formation is composed of brown coals, oil shales, and bituminous shale, which preserved numerous insects, fish, birds, reptiles, and terrestrial mammals as a notable lagerstätten. The area is a preserved maar lake which initially formed approximately 47 million years ago as the result of volcanic explosions. At the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalopone
''Cephalopone'' is an extinct genus of ants in the formicid subfamily Ponerinae described from fossils found in Europe. There are two described species placed into the genus, ''Cephalopone grandis'' and ''Cephalopone potens''. ''Cephalopone'' is one several Lutetian Ponerinae genera. History and classification When described, ''Cephalopone'' was known from three fossil insects which are compression-impression fossils preserved in layers of soft sedimentary rock. Along with other well preserved insect fossils, the ''Cephalopone'' specimens were collected from layers of the Lutetian Messel pit World Heritage Site. The formation is composed of brown coals, oil shales, and bituminous shale, which preserved numerous insects, fish, birds, reptiles, and terrestrial mammals as a notable lagerstätten. The area is a preserved maar lake which initially formed approximately 47 million years ago as the result of volcanic explosions. At the time of description, the holotype and para ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lutetian
The Lutetian is, in the geologic timescale, a stage or age in the Eocene. It spans the time between . The Lutetian is preceded by the Ypresian and is followed by the Bartonian. Together with the Bartonian it is sometimes referred to as the Middle Eocene Subepoch. Stratigraphic definition The Lutetian was named after Lutetia, the Latin name for the city of Paris. The Lutetian Stage was introduced in scientific literature by French geologist Albert de Lapparent in 1883 and revised by A. Blondeau in 1981. The base of the Lutetian Stage is at the first appearance of the nanofossil ''Blackites inflatus'', according to an official reference profile (GSSP) established in 2011. Of two candidates located in Spain, the Gorrondatxe section was chosen.See thwebsite of Eustoquio Molinafor these candidates. The top of the Lutetian (the base of the Bartonian) is at the first appearance of calcareous nanoplankton species ''Reticulofenestra reticulata''. The Lutetian overlaps with the Geisel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ponera
''Ponera'' is a genus of ponerine ants. The name is the Latinized form (') of the Ancient Greek ' (, 'wicked, wretched'). Description Workers are very small to small in size (1–4 mm); queen are similar to workers but winged. This genus is very similar to ''Cryptopone'', ''Hypoponera'' and ''Pachycondyla''. Biology ''Ponera'' nests contain less than 100 workers in protected places on the ground, most often in the soil or in cracks, rotten wood, under bark or moss on rotten logs. Distribution ''Ponera'' is known from the Holarctic, Samoa, New Guinea and Australia. Species *''Ponera alisana'' Terayama, 1986 *''Ponera alpha'' Taylor, 1967 *'' Ponera augusta'' Taylor, 1967 *'' Ponera bableti'' Perrault, 1993 *''Ponera baka'' Xu, 2001 *'' Ponera bawana'' Xu, 2001 *'' Ponera bishamon'' Terayama, 1996 *''Ponera borneensis'' Taylor, 1967 *''Ponera chapmani'' Taylor, 1967 *''Ponera chiponensis'' Terayama, 1986 *''Ponera clavicornis'' Emery, 1900 *''Ponera coarctata'' (Latreill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pachycondyla
''Pachycondyla'' is a ponerine genus of ants found in the Neotropics. Distribution ''Pachycondyla'' is currently distributed from southern United States to northern Argentina, but some fossil species (e.g. '' P. eocenica'' and '' P. lutzi'') are found in Europe. Species The genus formerly contained hundreds of species, most of them belonging to at the time junior synonyms of ''Pachycondyla''. While revising the ponerines, Schmidt & Shattuck (2014) revived many of the former synonyms, leaving only eleven species in ''Pachycondyla''. They were not able to place some species with certainty, and left more than twenty species ''incertae sedis'' in ''Pachycondyla'', acknowledging that "this placement is undoubtedly incorrect". *'' Pachycondyla constricticeps'' Mackay & Mackay, 2010 *'' Pachycondyla crassinoda'' (Latreille, 1802) *'' Pachycondyla fuscoatra'' (Roger, 1861) *'' Pachycondyla harpax'' (Fabricius, 1804) *'' Pachycondyla impressa'' (Roger, 1861) *'' Pachycondyla inca'' Em ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesosoma
The mesosoma is the middle part of the body, or tagma, of arthropods whose body is composed of three parts, the other two being the prosoma and the metasoma. It bears the legs, and, in the case of winged insects, the wings. In hymenopterans of the suborder Apocrita (wasps, bees and ants), it consists of the three thoracic segments and the first abdominal segment (the propodeum). For historical reasons, in ants it is commonly referred to by the alternative name alitrunk. In scorpions, it is composed of six segments and forms the first part of the abdomen, containing all of the major organs. The first segment contains the sexual organs as well as a pair of vestigial and modified appendages forming a structure called the genital operculum. The second segment bears a pair of featherlike sensory organs known as the pectines; the final four segments each contain a pair of book lungs. The mesosoma is armoured with chitinous plates, on the upper surface by the tergites and on the low ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ectatomminae
Ectatomminae is a subfamily of ants in the poneromorph subfamilies group containing four extant and three extinct genera in two tribes. The subfamily was created in 2003 when Barry Bolton divided the Ponerinae subfamily into six subfamilies. Genera *Ectatomminae Emery, 1895 **Ectatommini Emery, 1895 *** †'' Canapone'' Dlussky, 1999 *** ''Ectatomma'' Smith, 1858 *** †'' Electroponera'' Wheeler, 1915 *** ''Gnamptogenys'' Roger, 1863 *** †''Pseudectatomma'' Dlussky & Wedman, 2012 *** ''Rhytidoponera'' Mayr, 1862 **Typhlomyrmecini Emery, 1911 *** ''Typhlomyrmex ''Typhlomyrmex'' is a genus of ants in the subfamily Ectatomminae and the sole member of the tribe Typhlomyrmecini. Known from the Neotropics, the genus has a wide distribution. Some species are restricted in range, while for example ''Typhlomyr ...'' Mayr, 1862 References External links * Ant subfamilies Taxa named by Carlo Emery {{ant-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudectatomma
''Pseudectatomma'' is an extinct genus of ants in the formicid subfamily Ectatomminae described by from fossils found in Europe. The genus contains two species dating from the Eocene, ''Pseudectatomma eocenica'' and ''Pseudectatomma striatula''. History and classification When described, ''Pseudectatomma'' was known from four fossil insects which are compression-impression fossils preserved in layers of soft sedimentary rock. Along with other well preserved insect fossils, the ''Pseudectatomma'' specimens were collected from layers of the Lutetian Messel pit World Heritage Site. The formation is composed of brown coals, oil shales, and bituminous shale, which preserved numerous insects, fish, birds, reptiles, and terrestrial mammals as a notable lagerstätten. The area is a preserved maar lake which initially formed approximately 47 million years ago as the result of volcanic explosions. At the time of description, the holotype and paratype specimens were preserved in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
