|
Caputoraptor
''Caputoraptor'' is an extinct genus of insect from the Cenomanian aged Burmese amber containing two species: the type species ''Caputoraptor elegans'', as well as ''Caputoraptor vidit''. It is part of the extinct order Alienoptera. ''C. elegans'' is notable for the presence of a scissor like mechanism consisting of a straight edge on the back of the head and corresponding serrated edges on the first thoracic segment, these were initially suggested to used by the female to grasp the male during mating, but the structure is not Sexual dimorphism, sexually dimorphic, so a use to hold prey was subsequently suggested. Its morphology suggests a predatory habit inhabiting shrubs and trees. In 2020 a ''Caputoraptor elegans'' nymph was described that was in the process of being predated upon by a ''Ceratomyrmex'' Haidomyrmecinae, hell ant. References Prehistoric insect genera Burmese amber Fossil taxa described in 2018 {{cretaceous-insect-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alienoptera
Alienopteridae is an extinct family of dictyopterans, known from the Mid-Cretaceous to Eocene. They are noted for their unusual combination of features not found in other dictyopterans. Taxonomy It was originally assigned to its own order Alienoptera by Bai et al., 2016. It was reassigned to the dictyopteran superfamily Umenocoleoidea as sister family to the beetle-like Umenocoleidae by Vršanský ''et al.'' (2018), and a more recent analysis similarly places Alienopteridae and Umenocoleidae as sister taxa within Dictyoptera, but placing both lineages outside of Blattodea. A 2021 study revived the order Alienoptera for the clade containing Alienopteridae and Umenocoleidae, with a cladistic analysis placing Alienoptera as the sister clade to Mantodea (praying mantises). Distribution The majority of the alienopterid genera are known from the mid Cretaceous (latest Albian-earliest Cenomanian ~ 100 million years ago) Burmese amber found in Myanmar; though an additional two gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenomanian
The Cenomanian is, in the ICS' geological timescale, the oldest or earliest age of the Late Cretaceous Epoch or the lowest stage of the Upper Cretaceous Series. An age is a unit of geochronology; it is a unit of time; the stage is a unit in the stratigraphic column deposited during the corresponding age. Both age and stage bear the same name. As a unit of geologic time measure, the Cenomanian Age spans the time between 100.5 and 93.9 million years ago (Mya). In the geologic timescale, it is preceded by the Albian and is followed by the Turonian. The Upper Cenomanian starts around at 95 Mya. The Cenomanian is coeval with the Woodbinian of the regional timescale of the Gulf of Mexico and the early part of the Eaglefordian of the regional timescale of the East Coast of the United States. At the end of the Cenomanian, an anoxic event took place, called the Cenomanian-Turonian boundary event or the "Bonarelli event", that is associated with a minor extinction event for marine spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2018 In Paleontology
Flora Plants Fungi Cnidarians Research * New three dimensionally phosphatized microfossils of coronate scyphozoan '' Qinscyphus necopinus'', including a new type of fossil embryo, are described from the Cambrian (Fortunian) Kuanchuanpu Formation (China) by Shao ''et al.'' (2018), who interpret their findings as indicating that ''Qinscyphus'' underwent direct development. * A study on the morphology of the conulariid species '' Carinachites spinatus'' based on a new specimen collected from the lower Cambrian Kuanchuanpu Formation (China) is published by Han ''et al.'' (2018). * Revision of stony corals from the Lower Cretaceous (Berriasian) Oehrli Formation (Austria and Switzerland) is published by Baron-Szabo (2018), who compares this fauna with five additional Berriasian coral faunas. New taxa Arthropods Bryozoans New taxa Brachiopods Research * Studies on the ontogenetic development of early acrotretoid brachiopods based on well preserved specimens of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burmese Amber
Burmese amber, also known as Burmite or Kachin amber, is amber from the Hukawng Valley in northern Myanmar. The amber is dated to around 100 million years ago, during the latest Albian to earliest Cenomanian ages of the mid-Cretaceous period. The amber is of significant palaeontological interest due to the diversity of flora and fauna contained as inclusions, particularly arthropods including insects and arachnids but also birds, lizards, snakes, frogs and fragmentary dinosaur remains. The amber has been known and commercially exploited since the first century AD, and has been known to science since the mid-nineteenth century. Research on the deposit has attracted controversy due to its alleged role in funding internal conflict in Myanmar and hazardous working conditions in the mines where it is collected. Geological context, depositional environment and age The amber is found within the Hukawng Basin, a large Cretaceous-Cenozoic sedimentary basin within northern Myanmar. The s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen(s). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name that has that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have such types. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Dimorphism
Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most animals and some plants. Differences may include secondary sex characteristics, size, weight, colour, markings, or behavioural or cognitive traits. These differences may be subtle or exaggerated and may be subjected to sexual selection and natural selection. The opposite of dimorphism is ''monomorphism'', which is when both biological sexes are phenotypically indistinguishable from each other. Overview Ornamentation and coloration Common and easily identified types of dimorphism consist of ornamentation and coloration, though not always apparent. A difference in coloration of sexes within a given species is called sexual dichromatism, which is commonly seen in many species of birds and reptiles. Sexual selection leads to the exaggerated dim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratomyrmex
''Ceratomyrmex'' is an extinct genus of ant in the Formicidae subfamily Haidomyrmecinae. The genus contains a single described species ''Ceratomyrmex ellenbergeri'' and is known from several Late Cretaceous fossils which have been found in Asia. History and classification ''Ceratomyrmex'' is known from a total of four adult fossils. The holotype is specimen number "NIGP164022" of the Nanjing Institute of Geology and Paleontology; the adult specimen "IGR.BU-002" of the University of Rennes is designated as paratype. The two additional specimens described but not designated as paratypes were residing in the private collection of Sieghard Ellenberger, Germany. The described specimens are of worker caste adults which have been preserved as inclusions in transparent chunks of Burmese amber. The amber specimens were recovered from deposits in Kachin State, in Myanmar. Burmese amber has been radiometrically dated using U- Pb isotopes, yielding an age of approximately 98.79 ± 0.62 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haidomyrmecinae
Haidomyrmecinae, occasionally called Hell ants, are an extinct subfamily of ants (Formicidae) known from Cretaceous fossils found in ambers of North America, Europe, and Asia, spanning the late Albian to Campanian, around 100 to 79 million years ago. The subfamily was first proposed in 2003, but had been subsequently treated as the tribe Haidomyrmecini and placed in the extinct ant subfamily Sphecomyrminae. Reevaluation of Haidomyrmecini in 2020 lead to the elevation of the group back to subfamily. The family contains the nine genera and thirteen species. Members of this family are highly distinct from all other ants, having diverse head ornamentation, and unusually shaped, extended mandibles that articulated vertically rather than horizontally as in modern ants. The jaws in combination with the head ornamentation served to restrain prey, with most species having setae (hair-like structures) covering parts of the head which likely functioned as triggers to rapidly close the jaw wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Insect Genera
Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared 5000 years ago. It took thousands of years for writing systems to be widely adopted, with writing spreading to almost all cultures by the 19th century. The end of prehistory therefore came at very different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilisation, and ancient Egypt were the first civilizations to develop their own scripts and to keep historical records, with their neighbors following. Most other civilizations reached the end of prehistory during the following Iron Age. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_(2).jpg "Click for more on -> Type Species")
