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Noriegavis
''Thegornis'' is an extinct genus of herpetotherine falconid that lived during the Miocene of South America. The genus was erected by Florentino Ameghino in 1895 based on two species, ''T. musculosus'' and ''T. debilis''. However, ''T. debilis'' was later suggested to be an invalid species, with the differences between it and ''T. musculosus'' being due to sexual dimorphism. Two additional species, ''T. spivacowi'' and ''T. sosae'', were subsequently named in later years by Federico Agnolín. Its skull and postcranial morphology are similar to the laughing falcon and forest falcon, which together form the clade Herpetotherinae. The seriema ''Noriegavis'' holotype was transferred to this genus and the well-preserved specimen described in 2015 attributed to ''Noriegavis'' has been classified into ''Miocariama''. References {{Taxonbar, from=Q85808955 Falconidae Neogene birds of South America Prehistoric bird genera Neogene Argentina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seriema
The seriemas are the sole living members of the small bird family Cariamidae (the entire family is also referred to as "seriemas"), which is also the only surviving lineage of the order Cariamiformes. Once believed to be related to cranes, they have been placed near the falcons, parrots, and passerines, as well as the extinct Phorusrhacidae (terror birds).Hackett, S. J. ''et al''. (2008) A Phylogenomic Study of Birds Reveals Their Evolutionary History. ''Science'' 320(5884):1763–1768 The seriemas are large, long-legged territorial birds that range from in length. They live in grasslands, savanna, dry woodland and open forests of Brazil, Bolivia, Argentina, Paraguay and Uruguay. There are two species of seriemas, the red-legged seriema (''Cariama cristata'') and the black-legged seriema (''Chunga burmeisteri'').del Hoyo, J. Elliott, A. & Sargatal, J. (editors). (1996) ''Handbook of the Birds of the World. Volume 3: Hoatzin to Auks''. Lynx Edicions. Names for these birds in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noriegavis
''Thegornis'' is an extinct genus of herpetotherine falconid that lived during the Miocene of South America. The genus was erected by Florentino Ameghino in 1895 based on two species, ''T. musculosus'' and ''T. debilis''. However, ''T. debilis'' was later suggested to be an invalid species, with the differences between it and ''T. musculosus'' being due to sexual dimorphism. Two additional species, ''T. spivacowi'' and ''T. sosae'', were subsequently named in later years by Federico Agnolín. Its skull and postcranial morphology are similar to the laughing falcon and forest falcon, which together form the clade Herpetotherinae. The seriema ''Noriegavis'' holotype was transferred to this genus and the well-preserved specimen described in 2015 attributed to ''Noriegavis'' has been classified into ''Miocariama''. References {{Taxonbar, from=Q85808955 Falconidae Neogene birds of South America Prehistoric bird genera Neogene Argentina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocariama
''Miocariama'' is an extinct genus of seriema that lived in the Early Miocene and Late Pliocene. The only species in the genus is ''Miocariama patagonica''. It was discovered in the Santa Cruz Formation of the Aquitanian stage in the Miocene, and is the oldest known species within Cariamidae The seriemas are the sole living members of the small bird family Cariamidae (the entire family is also referred to as "seriemas"), which is also the only surviving lineage of the order Cariamiformes. Once believed to be related to Crane (bird), .... References Cariamidae Prehistoric bird genera Miocene birds Pliocene birds Prehistoric birds of North America Prehistoric birds of South America Fossil taxa described in 2017 {{Cariamiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, especially on Patagonia, rank with those made in the western United States during the late 19th century. Along with his two brothers – Carlos and Juan – Florentino Ameghino was one of the most important founding figures in South American paleontology. From 1887 until his death, Ameghino was passionately devoted to the study of fossil mammals from Patagonia, with the valuable support of his brother Carlos Ameghino (1865–1936) who, between 1887 and 1902, made 14 trips to that region, where he discovered and collected numerous fossil faunas and made important stratigraphic observations. Biography Ameghino was born on September 19, 1853, in Tessi, an hamlet of Moneglia, a municipality of Liguria in Italy, in what was then the Kingdom of Sardi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laughing Falcon
The laughing falcon (''Herpetotheres cachinnans'') is a medium-sized bird of prey in subfamily Herpetotherinae of family Falconidae, the falcons and caracaras. It is found from Mexico south through Central America and in every mainland South American country except Chile and Uruguay.Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. 30 January 2023. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved January 30, 2023 Taxonomy and systematics The laughing falcon was formally described in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his ''Systema Naturae''. He placed it with the falcons and eagles in the genus '' Falco'' and coined the binomial name ''Falco cachinnans''. Linnaeus based his account on information from one of his students, Daniel Rolander, who had visited the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neogene Birds Of South America
The Neogene ( ,) is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period million years ago. It is the second period of the Cenozoic and the eleventh period of the Phanerozoic. The Neogene is sub-divided into two epochs, the earlier Miocene and the later Pliocene. Some geologists assert that the Neogene cannot be clearly delineated from the modern geological period, the Quaternary. The term "Neogene" was coined in 1853 by the Austrian palaeontologist Moritz Hörnes (1815–1868). The earlier term Tertiary Period was used to define the span of time now covered by Paleogene and Neogene and, despite no longer being recognized as a formal stratigraphic term, "Tertiary" still sometimes remains in informal use. During this period, mammals and birds continued to evolve into modern forms, while other groups of life remained relatively unchanged. The first humans ('' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falconidae
The falcons and caracaras are around 65 species of Diurnality, diurnal birds of prey that make up the family Falconidae (representing all extant species in the order (biology), order Falconiformes). The family likely originated in South America during the Paleocene and is divided into three subfamilies: Herpetotherinae, which includes the laughing falcon and forest falcons; Polyborinae, which includes the spot-winged falconet and the Caracara (subfamily), caracaras; and Falconinae, the falcons and kestrels (''Falco'') and falconets (''Microhierax''). Description Falcons and caracaras are small to medium-sized birds of prey, ranging in size from the black-thighed falconet, which can weigh as little as , to the gyrfalcon, which can weigh as much as . They have strongly hooked bills, sharply curved talons and excellent eyesight. The plumage is usually composed of browns, whites, chestnut, black and grey, often with barring of patterning. There is little difference in the plumage of m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herpetotherinae
Herpetotherinae is a subfamily of falconid birds of prey that includes eight species in two genera '' Herpetotheres'' (the laughing falcon) and ''Micrastur'' (forest falcons). Both genera are found in South America and the subfamily is basal to the other falconid subfamilies where they split off around 30.2 million years ago in the Oligocene epoch. The two extant herpetotherine genera split around 20 million years ago in the Miocene The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and mea ... epoch with the extinct genus '' Thegornis''. References Birds of prey Bird subfamilies {{Falconiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest Falcon
Forest falcons are members of the genus ''Micrastur'', part of the family Falconidae. They are endemic to the Americas, found from Mexico in the north, south through Central America and large parts of South America, and as far south as northern Argentina. Most are restricted to humid tropical and subtropical forests, but the two most widespread species, the collared and the barred forest falcon, also range into drier and more open habitats. Forest falcons, like most ''Accipiter''-type hawks (but unlike other falcons), are adapted for agility in thick cover rather than outright speed in the open air. They have short wings, long tails, and extraordinarily acute hearing. While generally visually inconspicuous, their songs are commonly heard. Their diet is a mixture of birds, mammals, and reptiles. Hunting is often performed in goshawk fashion: the bird takes up a perch in an inconspicuous position and waits for a prey species to pass, then strikes with a short, rapid pursuit. Fores ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Dimorphism
Sexual dimorphism is the condition where sexes of the same species exhibit different Morphology (biology), morphological characteristics, including characteristics not directly involved in reproduction. The condition occurs in most dioecy, dioecious species, which consist of most animals and some plants. Differences may include secondary sex characteristics, size, weight, color, markings, or behavioral or cognitive traits. Male-male reproductive competition has evolved a diverse array of sexually dimorphic traits. Aggressive utility traits such as "battle" teeth and blunt heads reinforced as battering rams are used as weapons in aggressive interactions between rivals. Passive displays such as ornamental feathering or song-calling have also evolved mainly through sexual selection. These differences may be subtle or exaggerated and may be subjected to sexual selection and natural selection. The opposite of dimorphism is ''monomorphism'', when both biological sexes are phenotype, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1895 In Paleontology
Insects Synapsids Non-mammalian Birds {, class="wikitable sortable" align="center" width="100%" , - ! Name ! Novelty ! Status ! Authors ! Age ! Location ! width="33%" class="unsortable" , Notes !Images , - , '' Thegornis'' , Gen. et 2 sp. nov , Valid , Ameghino , Early–Middle Miocene (Santacrucian) , , A member of the Herpetotherinae. The type species is ''T. musculosus''; Ameghino also named ''T. debilis'', but it has since been synonymized with the former on the basis of sexual dimorphism Sexual dimorphism is the condition where sexes of the same species exhibit different Morphology (biology), morphological characteristics, including characteristics not directly involved in reproduction. The condition occurs in most dioecy, di ....{{Cite journal , author1=Jorge I. Noriega , author2=Juan I. Areta , author3=Sergio F. Vizcaíno , author4=M. Susana Bargo , year=2011 , url=https://bioone.org/journals/Journal-of-Paleontology/volume-85/issue-6/10-122.1/Ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion of the Americas. South America is bordered on the west by the Pacific Ocean, on the north and east by the Atlantic Ocean, and to the south by the Drake Passage; North America and the Caribbean Sea lie to the northwest. The continent includes twelve sovereign states: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela; two dependent territory, dependent territories: the Falkland Islands and South Georgia and the South Sandwich Islands; and one administrative division, internal territory: French Guiana. The Dutch Caribbean ABC islands (Leeward Antilles), ABC islands (Aruba, Bonaire, and Curaçao) and Trinidad and Tobago are geologically located on the South-American continental shel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
