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Palaeochiropteryx
''Palaeochiropteryx'' ( ) is an extinct genus of bat from the Middle Eocene of Europe and North America. It contains three very similar species – ''Palaeochiropteryx tupaiodon'' and ''Palaeochiropteryx spiegeli'', both from the famous Messel Pit of Germany, as well as ''Palaeochiropteryx sambuceus'' from the Sheep Pass Formation (Nevada, United States). They are usually found complete and exceptionally preserved, even retaining the outlines of their fur, ears, and wing membranes. They are one of the oldest bats known, existing around 48 million years ago. Despite this, they were already quite advanced, showing evidence of the ability to hunt by echolocation like modern insect-eating bats. ''Palaeochiropteryx'' were small bats, with a wingspan between . Their wings were short but broad, indicating an adaptation for slow but highly maneuverable flight beneath forest canopies and among dense vegetation. They preyed mostly on moths and caddisflies and were probably nocturnal. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeochiropteryx NT
''Palaeochiropteryx'' ( ) is an extinct genus of bat from the Lutetian, Middle Eocene of Europe and North America. It contains three very similar species – ''Palaeochiropteryx tupaiodon'' and ''Palaeochiropteryx spiegeli'', both from the famous Messel Pit of Germany, as well as ''Palaeochiropteryx sambuceus'' from the Sheep Pass Formation (Nevada, United States). They are usually found complete and exceptionally preserved, even retaining the outlines of their fur, ears, and Bat wing, wing membranes. They are one of the oldest bats known, existing around 48 million years ago. Despite this, they were already quite advanced, showing evidence of the ability to hunt by Animal echolocation, echolocation like modern insect-eating bats. ''Palaeochiropteryx'' were small bats, with a wingspan between . Their wings were short but broad, indicating an adaptation for slow but highly maneuverable flight beneath forest Canopy (biology), canopies and among dense vegetation. They preyed mostly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeochiropterygidae
Palaeochiropterygidae is a family of extinct bats. It was originally erected by the Swiss naturalist Pierre Revilliod in 1917 after discoveries of ''Palaeochiropteryx'' fossils from the Messel Pit of Germany. Palaeochiropterygidae was merged into Archaeonycteridae by Kurten and Anderson in 1980, but modern authorities specializing in bat fossils maintain the distinction between the two. It was classified to the unranked clade Microchiropteramorpha by Smith ''et al.'' in 2007. They existed from the Ypresian to the Lutetian ages of the Middle Eocene epoch (55.8 to 40.4 million years ago). Paleobiology Two species of Palaeochiropterygidae, ''Palaeochiropteryx tupaiodon'' and ''P. spiegeli'', are known from complete skeletons from the famous Messel Pit fossil deposits in Germany. ''Palaeochiropteryx tupaiodon'' is the most common mammal found at Messel. All other species belonging to Palaeochiropterygidae are known only from isolated teeth and jaw fragments from Europe, India, T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bat Wing
Bats are mammals of the order Chiroptera.''cheir'', "hand" and πτερόν''pteron'', "wing". With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, flying with their very long spread-out digits covered with a thin membrane or patagium. The smallest bat, and arguably the smallest extant mammal, is Kitti's hog-nosed bat, which is in length, across the wings and in mass. The largest bats are the flying foxes, with the giant golden-crowned flying fox, ''Acerodon jubatus'', reaching a weight of and having a wingspan of . The second largest order of mammals after rodents, bats comprise about 20% of all classified mammal species worldwide, with over 1,400 species. These were traditionally divided into two suborders: the largely fruit-eating megabats, and the echolocating microbats. But more recent evidence has supported dividing the order into Yinpterochiroptera and Yangochiro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheep Pass Formation
The Sheep Pass Formation is a geologic formation in Nevada. It preserves fossils dating back to the Paleogene period. Fossil content Vertebrates Invertebrates See also * List of fossiliferous stratigraphic units in Nevada * Nevadaplano * Paleontology in Nevada Paleontology in Nevada refers to paleontological research occurring within or conducted by people from the U.S. state of Nevada. Nevada has a rich fossil record of plants and animal life spanning the past 650 million years of time. The earliest fo ... References * Paleogene geology of Nevada {{Paleogene-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hassianycteris
''Hassianycteris'' is an extinct genus of Early Eocene (Ypresian) bats from the Hassianycterididae with two or three known species: the type (''H. messelensis''), found in the Messel pit, Germany, ''H. kumasi'', found in the Cambay Shale Formation (Vastan Lignite Mine), India, and the possible third species "''H.''" ''joeli'', found in the Kortijk Clay Formation, Belgium. Alongside ''Palaeochiropteryx tupaiodon ''Palaeochiropteryx'' ( ) is an extinct genus of bat from the Middle Eocene of Europe and North America. It contains three very similar species – ''Palaeochiropteryx tupaiodon'' and ''Palaeochiropteryx spiegeli'', both from the famous Messel ...'' (alive roughly 48 million years ago), ''P. tupaiodon'' and ''Hassianycteris kumari'' are the first fossil mammals whose colouration has been discovered: both were reddish-brown when alive. ''H. messelensis'' was probably a similar colour when alive. References {{Taxonbar, from=Q104882675 Prehistoric bat gene ... [...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] |
Messel
Messel is a municipality in the district of Darmstadt-Dieburg in Hesse near Frankfurt am Main in Germany. The village is first mentioned, as ''Masilla'', in the Lorsch codex. Messel was the property of the lords of Groschlag from ca. 1400 to 1799. After the extinction of the Groschlag male lineage, the village would have passed to the Archbishopric of Mainz but the population refused to accept this transition and paid homage to the daughters of the Groschlag family instead. The minister of the archbishopric, von Albini, consequently occupied the village with a force of 50 hussars. In 1806, the village fell to the Grand Duchy of Hesse. The nearby Messel pit is an important site for Eocene The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', " ... fossils. File:Messel (3).JPG, Signpost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melanosome
A melanosome is an organelle found in animal cells and is the site for synthesis, storage and transport of melanin, the most common light-absorbing pigment found in the animal kingdom. Melanosomes are responsible for color and photoprotection in animal cells and tissues. Melanosomes are synthesised in the skin in melanocyte cells, as well as the eye in choroidal melanocytes and retinal pigment epithelial (RPE) cells. In lower vertebrates, they are found in melanophores or chromatophores. Structure Melanosomes are relatively large organelles, measuring up to 500 nm in diameter. They are bound by a bilipid membrane and are, in general, rounded, sausage-like, or cigar-like in shape. The shape is constant for a given species and cell type. They have a characteristic ultrastructure on electron microscopy, which varies according to the maturity of the melanosome, and for research purposes a numeric staging system is sometimes used. Synthesis of melanin Melanosomes are dependent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the ... [...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] |
Swiss People
The Swiss people (german: die Schweizer, french: les Suisses, it, gli Svizzeri, rm, ils Svizzers) are the citizens of Switzerland or people of Swiss abroad, Swiss ancestry. The number of Swiss nationality law, Swiss nationals has grown from 1.7 million in 1815 to 8.7 million in 2020. More than 1.5 million Swiss citizens hold multiple citizenship. About 11% of citizens Swiss abroad, live abroad (0.8 million, of whom 0.6 million hold multiple citizenship). About 60% of those living abroad reside in the European Union (0.46 million). The largest groups of Swiss descendants and nationals outside Europe are found in the Swiss Americans, United States, Brazil and Swiss Canadian, Canada. Although the Switzerland as a federal state, modern state of Switzerland originated in 1848, the period of romantic nationalism, it is not a nation-state, and the Swiss are not a single ethnic group, but rather are a Confederation, confederacy (') or ' ("nation of will", "nation by choice", tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caddisflies
The caddisflies, or order Trichoptera, are a group of insects with aquatic larvae and terrestrial adults. There are approximately 14,500 described species, most of which can be divided into the suborders Integripalpia and Annulipalpia on the basis of the adult mouthparts. Integripalpian larvae construct a portable casing to protect themselves as they move around looking for food, while Annulipalpian larvae make themselves a fixed retreat in which they remain, waiting for food to come to them. The affinities of the small third suborder Spicipalpia are unclear, and molecular analysis suggests it may not be monophyletic. Also called sedge-flies or rail-flies, the adults are small moth-like insects with two pairs of hairy membranous wings. They are closely related to the Lepidoptera (moths and butterflies) which have scales on their wings; the two orders together form the superorder Amphiesmenoptera. The aquatic larvae are found in a wide variety of habitats such as streams, river ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
