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Anochetus Ambiguus
''Anochetus ambiguus'' is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. ''A. ambiguus'' is one of eight species in the ant genus ''Anochetus'' to have been described from fossils found in Dominican amber and is one of a number of ''Anochetus'' species found in the Greater Antillies. History and classification ''Anochetus ambiguus'' is known from two solitary fossil insects which, are inclusions in dark yellow transparent chunks of Dominican amber. The amber was produced by the extinct ''Hymenaea protera'', which formerly grew on Hispaniola, across northern South America and up to southern Mexico. The specimens were collected from an undetermined amber mine in fossil bearing rocks of the Cordillera Septentrional mountains, northern Dominican Republic. The amber dates from at least the Burdigalian stage of the Miocene, based on studying the associated fossil foraminifera and may be as old as the Middle Eocene, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type (biology)
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the scientific name of every taxon is almost al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesonotum
The mesothorax is the middle of the three segments of the thorax of hexapods, and bears the second pair of legs. Its principal sclerites (exoskeletal plates) are the mesonotum (dorsal), the mesosternum (ventral), and the mesopleuron (lateral) on each side. The mesothorax is the segment that bears the forewings in all winged insects, though sometimes these may be reduced or modified, as in beetles (Coleoptera) or Dermaptera, in which they are sclerotized to form the elytra ("wing covers"), and the Strepsiptera, in which they are reduced to form halteres that attach to the mesonotum. All adult insects possess legs on the mesothorax. In some groups of insects, the mesonotum is hypertrophied, such as in Diptera, Hymenoptera, and Lepidoptera), in which the anterior portion of the mesonotum (called the mesoscutum, or simply "scutum") forms most of the dorsal surface of the thorax. In these orders, there is also typically a small sclerite attached to the mesonotum that covers the wing ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropod Leg
The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. Many of the terms used for arthropod leg segments (called podomeres) are of Latin origin, and may be confused with terms for bones: ''coxa'' (meaning hip, plural ''coxae''), ''trochanter'', ''femur'' (plural ''femora''), ''tibia'' (plural ''tibiae''), ''tarsus'' (plural ''tarsi''), ''ischium'' (plural ''ischia''), ''metatarsus'', ''carpus'', ''dactylus'' (meaning finger), ''patella'' (plural ''patellae''). Homologies of leg segments between groups are difficult to prove and are the source of much argument. Some authors posit up to eleven segments per leg for the most recent common ancestor of extant arthropods but modern arthropods have eight or fewer. It has been argued that the ancestral leg need not have been so complex, and that other events, such as successive loss of function of a ''Hox''-gene, could result in parallel gains of leg segments. In arthropods, each of the leg segments ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petiole (insect Anatomy)
In entomology, petiole is the technical term for the narrow waist of some hymenopteran insects, especially ants, bees, and wasps in the suborder Apocrita. The petiole can consist of either one or two segments, a characteristic that separates major subfamilies of ants. Structure The term 'petiole' is most commonly used to refer to the constricted first (and sometimes second) metasomal (posterior) segment of members of the hymenopteran suborder Apocrita (ants, bees, and wasps). It is sometimes also used to refer to other insects with similar body shapes, where the metasomal base is constricted. The petiole is occasionally called a pedicel, but in entomology, that term is more correctly reserved for the second segment of the antenna; while in arachnology, 'pedicel' is the accepted term to define the constriction between the cephalothorax and abdomen of spiders. The plump portion of the abdomen posterior to the petiole (and postpetiole in the Myrmicinae) is called the gaster ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Coloration
Animal coloration is the general appearance of an animal resulting from the reflection or emission of light from its surfaces. Some animals are brightly coloured, while others are hard to see. In some species, such as the peafowl, the male has strong patterns, conspicuous colours and is iridescent, while the female is far less visible. There are several separate reasons why animals have evolved colours. Camouflage enables an animal to remain hidden from view. Animals use colour to advertise services such as cleaning to animals of other species; to signal their sexual status to other members of the same species; and in mimicry, taking advantage of the warning coloration of another species. Some animals use flashes of colour to divert attacks by startling predators. Zebras may possibly use motion dazzle, confusing a predator's attack by moving a bold pattern rapidly. Some animals are coloured for physical protection, with pigments in the skin to protect against sunburn, while ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anochetus Lucidus
''Anochetus lucidus'' is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. ''A. lucidus'' is one of eight species in the ant genus ''Anochetus'' to have been described from fossils found in Dominican amber and is one of a number of ''Anochetus'' species found in the Greater Antillies. History and classification ''Anochetus lucidus'' is known from just two fossil insects, which were inclusions in a single yellow transparent chunk of Dominican amber, which was cut into two pieces for the study of the fossils. The amber was produced by the extinct ''Hymenaea protera'', which formerly grew on Hispaniola, across northern South America and up to southern Mexico. The specimens were collected from an undetermined amber mine in fossil bearing rocks of the Cordillera Septentrional mountains, northern Dominican Republic. The amber dates from at least the Burdigalian stage of the Miocene, based on studying the associated foss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anochetus Intermedius
''Anochetus intermedius'' is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. ''A. intermedius'' is one of eight species in the ant genus ''Anochetus'' to have been described from fossils found in Dominican amber and is one of a number of ''Anochetus'' species found in the Greater Antilles. History and classification ''Anochetus intermedius'' is known from a solitary fossil insect which, along with two flies, three other ants, and two springtails, is an inclusion in a transparent yellow chunk of Dominican amber. The amber was produced by the extinct ''Hymenaea protera'', which formerly grew on Hispaniola, across northern South America and up to southern Mexico. The specimen was collected from an undetermined amber mine in fossil bearing rocks of the Cordillera Septentrional mountains of northern Dominican Republic. The amber dates from at least the Burdigalian stage of the Miocene, based on studying the associate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anochetus Exstinctus
''Anochetus exstinctus'' is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. ''A. exstinctus'' is one of eight species in the ant genus ''Anochetus'' to have been described from fossils found in Dominican amber and is one of a number of ''Anochetus'' species found in the Greater Antillies. History and classification ''Anochetus exstinctus'' is known from three solitary fossil insects which are inclusions in yellow transparent chunks of Dominican amber. The amber was produced by the extinct ''Hymenaea protera'', which formerly grew on Hispaniola, across northern South America and up to southern Mexico. The specimens were collected from an undetermined amber mine in fossil bearing rocks of the Cordillera Septentrional mountains, northern Dominican Republic. The amber dates from at least the Burdigalian stage of the Miocene, based on studying the associated fossil foraminifera and may be as old as the Middle Eocene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anochetus Dubius
''Anochetus dubius'' is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. ''A. dubius'' is one of eight species in the ant genus ''Anochetus'' to have been described from fossils found in Dominican amber and is one of a number of ''Anochetus'' species found in the Greater Antillies. History and classification ''Anochetus dubius'' is known from the solitary fossil insect which, along with two soil particles, is an inclusion in a transparent yellow chunk of Dominican amber. The amber was produced by the extinct ''Hymenaea protera'', which formerly grew on Hispaniola, across northern South America, and up to southern Mexico. The specimen was collected from an undetermined amber mine in fossil-bearing rocks of the Cordillera Septentrional mountains of northern Dominican Republic. The amber dates from at least the Burdigalian stage of the Miocene, based on studying the associated fossil foraminifera, and may be as old as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anochetus Conisquamis
''Anochetus conisquamis'' is an extinct species of ant in the subfamily Ponerinae known from one possibly Miocene fossil found on Hispaniola. ''A. conisquamis'' is one of eight species in the ant genus ''Anochetus'' to have been described from fossils found in Dominican amber and is one of a number of ''Anochetus'' species found in the Greater Antilles. History and classification ''Anochetus conisquamis'' is known from a solitary fossil insect which, along with two Kalotermitid termites and two flies, is an inclusion in a transparent yellow chunk of Dominican amber. The amber was produced by the extinct ''Hymenaea protera'', which formerly grew on Hispaniola, across northern South America and up to southern Mexico. The specimen was collected from an undetermined amber mine in fossil-bearing rocks of the Cordillera Septentrional mountains of northern Dominican Republic. The amber dates from at least the Burdigalian stage of the Miocene, based on studying the associated fossil fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anochetus Brevidentatus
''Anochetus brevidentatus'' is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. ''A. ambiguus'' is one of eight species in the ant genus ''Anochetus'' to have been described from fossils found in Dominican amber and is one of a number of ''Anochetus'' species found in the Greater Antillies. History and classification ''Anochetus brevidentatus'' is known from two solitary fossil insects which are inclusions in transparent chunks of Dominican amber. The amber was produced by the extinct ''Hymenaea protera'', which formerly grew on Hispaniola, across northern South America, and up to southern Mexico. The type specimen was collected from the La Toca Mine near las Aguitas, while the second specimen is from an undetermined amber mine. Both are from fossil bearing rocks of the Cordillera Septentrional mountains in the northern Dominican Republic. The amber dates from at least the Burdigalian stage of the Miocene, based o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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