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1891 In Paleontology
Arthropods Newly named insects Archosauromorphs Newly named dinosaurs Newly named birds {, border="0" style="background:transparent;" style="width: 100%; , - !width="90%", !width="5%", !width="5%", , - , style="border:0px" valign="top", {, class="wikitable sortable" align="center" width="100%" , - ! Name ! Status ! Authors ! Notes , - , ''Dryornis pampeanus'' , Valid , Moreno & Mercerat , , - , ''Neochen debilis'' , Valid , style="border-right:0px" valign="top" , Florentino Ameghino Florentino Ameghino (born Giovanni Battista Fiorino Giuseppe Ameghino September 19, 1853 – August 6, 1911) was an Argentine naturalist, paleontologist, anthropologist and zoologist, whose fossil discoveries on the Argentine Pampas, especiall ... , , - References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeromyrma Antiqua
''Carebara'' is a genus of ants in the subfamily Myrmicinae. It is one of the largest myrmicine genera with more than 200 species distributed worldwide in the tropics and the Afrotropical region. Many of them are very tiny cryptic soil and leaf litter inhabitants. They nest in rotten wood to which the bark is still adherent in the Afrotropical region, or may be lestobiotic nesting near other ant species. Some species are known to exist parasitically within termite nests. Little is known about the biology of the species. However, they are notable for the vast difference in size between queens and workers. Species *''Carebara aborensis'' (Wheeler, 1913) *''Carebara abuhurayri'' Sharaf & Aldawood, 2011 *''Carebara acuta'' (Weber, 1952) *''Carebara acutispina'' (Xu, 2003) *''Carebara affinis'' (Jerdon, 1851) *''Carebara afghana'' (Pisarski, 1970) *''Carebara africana'' (Forel, 1910) *''Carebara alluaudi'' (Santschi, 1913) *''Carebara alperti'' Fernández, 2010 *''Carebara alpha'' (F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Jurassic
The Early Jurassic Epoch (in chronostratigraphy corresponding to the Lower Jurassic Series) is the earliest of three epochs of the Jurassic Period. The Early Jurassic starts immediately after the Triassic-Jurassic extinction event, 201.3 Ma (million years ago), and ends at the start of the Middle Jurassic 174.1 Ma. Certain rocks of marine origin of this age in Europe are called "Lias" and that name was used for the period, as well, in 19th-century geology. In southern Germany rocks of this age are called Black Jurassic. Origin of the name Lias There are two possible origins for the name Lias: the first reason is it was taken by a geologist from an English quarryman's dialect pronunciation of the word "layers"; secondly, sloops from north Cornish ports such as Bude would sail across the Bristol Channel to the Vale of Glamorgan to load up with rock from coastal limestone quarries (lias limestone from South Wales was used throughout North Devon/North Cornwall as it conta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Othniel Charles Marsh
Othniel Charles Marsh (October 29, 1831 – March 18, 1899) was an American professor of Paleontology in Yale College and President of the National Academy of Sciences. He was one of the preeminent scientists in the field of paleontology. Among his legacies are the discovery or description of dozens of new species and theories on the origins of birds. Born into a modest family, Marsh was able to afford higher education thanks to the generosity of his wealthy uncle George Peabody. After graduating from Yale College in 1860 he travelled the world, studying anatomy, mineralogy and geology. He obtained a teaching position at Yale upon his return. From the 1870s to 1890s, he competed with rival paleontologist Edward Drinker Cope in a period of frenzied Western American expeditions known as the Bone Wars. Marsh's greatest legacy is the collection of Mesozoic reptiles, Cretaceous birds, and Mesozoic and Tertiary mammals that now constitute the backbone of the collections of Yale's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammosaurus
''Anchisaurus'' is a genus of Basal (phylogenetics), basal sauropodomorpha, sauropodomorph dinosaur. It lived during the Early Jurassic Period (geology), Period, and its fossils have been found in the red sandstone of the Portland Formation, Northeastern United States, which was deposited from the Hettangian age into the Sinemurian age, between about 200 and 195 million years ago.Olsen, P.E. (2002)STRATIGRAPHY AND AGE OF THE EARLY JURASSIC PORTLAND FORMATION OF CONNECTICUT AND MASSACHUSETTS: A CONTRIBUTION TO THE TIME SCALE OF THE EARLY JURASSIC. Session No. 26 Studies of Depositional Systems and Sedimentary Rocks: In Honor of Edward Scudder Belt. 37th Annual Meeting (March 25–27, 2002). Until recently it was classed as a member of Prosauropoda. The genus name ''Anchisaurus'' comes from the Greek ''αγχι'' (') ; "near, close" + Greek ('); "lizard". ''Anchisaurus'' was coined as a replacement name for "''Amphisaurus''", which was itself a replacement name for Hitchcock's "''M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thecodontosaurus
''Thecodontosaurus'' ("socket-tooth lizard") is a genus of herbivorous basal sauropodomorph dinosaur that lived during the late Triassic period (Rhaetian age). Its remains are known mostly from Triassic "fissure fillings" in South England. ''Thecodontosaurus'' was a small bipedal animal, about 2 m (6.5 ft) long. It is one of the first dinosaurs to be discovered and is one of the oldest that existed. Many species have been named in the genus, but only the type species ''Thecodontosaurus antiquus'' is seen as valid today. Discovery and naming ''Thecodontosaurus antiquus'' In the autumn of 1834, surgeon Henry Riley (1797–1848) and the curator of the Bristol Institution, Samuel Stutchbury, began to excavate "saurian remains" at the quarry of Durdham Down, at Clifton, presently a part of Bristol, which is part of the Magnesian Conglomerate. In 1834 and 1835, they briefly reported on the finds. They provided their initial description in 1836, naming a new genus: ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhaetian
The Rhaetian is the latest age of the Triassic Period (in geochronology) or the uppermost stage of the Triassic System (in chronostratigraphy). It was preceded by the Norian and succeeded by the Hettangian (the lowermost stage or earliest age of the Jurassic). The base of the Rhaetian lacks a formal GSSP, though candidate sections include Steinbergkogel in Austria (since 2007) and Pignola-Abriola in Italy (since 2016). The end of the Rhaetian (and the base of the overlying Hettangian Stage) is more well-defined. According to the current ICS (International Commission on Stratigraphy) system, the Rhaetian ended ± 0.2 Ma ( million years ago). In 2010, the base of the Rhaetian (i.e. the Norian-Rhaetian boundary) was voted to be defined based on the first appearance of '' Misikella posthernsteini'', a marine conodont. However, there is still much debate over the age of this boundary, as well as the evolution of ''M. posthernsteini''. The most comprehensive source of precise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harry Govier Seeley
Harry Govier Seeley (18 February 1839 – 8 January 1909) was a British paleontologist. Early life Seeley was born in London on 18 February 1839, the second son of Richard Hovill Seeley, a goldsmith, and his second wife Mary Govier. When his father was declared bankrupt, Seeley was sent to live with a family of piano makers. Between the ages of eleven and fourteen, he went to a day school and then spent the next two years learning to make pianos. He also attended lectures at the Royal School of Mines by Thomas Henry Huxley, Edward Forbes, and other notable scientists. In 1855, with the support of his uncle, Seeley began to study law but shortly gave it up to pursue a career as an actuary. In the late 1850s, he studied English and mathematics at the Working Men's College and served as a secretary for the college's museum. He also worked in the library of the British Museum, where Samuel Pickworth Woodward encouraged him to study geology. In 1859, Seeley began studies at Sidney Su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agrosaurus
''Agrosaurus'' (; perhaps from Greek ''agros'' meaning 'field' and ''sauros'' meaning 'lizard', "field lizard") is an extinct genus of thecodontosaurid sauropodomorph probably originating from England that was originally believed to be a Triassic prosauropod from Australia. ''Agrosaurus'' would thus be the oldest dinosaur from that country. However, this appears to have been an error, and the material actually appears to come from ''Thecodontosaurus'' or a ''Thecodontosaurus''-like animal from Bristol, England (Avon Fissure Fill). The type species is ''Agrosaurus macgillivrayi''. History Members of an expedition from the British sloop-of-war HMS ''Fly'' supposedly collected two tibiae, a fibula and two foot claws as well as some other fragments in 1844 while erecting a beacon on the coast of Cape York, Queensland in Australia. The context of the discovery is uncertain, as it is not mentioned in books by expedition naturalist John MacGallivray, nor in a 1847 book on the voya ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ponera Leptocephala Emery 1891 Fig 3
''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'' (Latreille, 1 ... [...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, fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ponera Leptocephala
''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'' (Latreille, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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