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Eoscatophagus
''Eoscatophagus'' ("dawn ''Scatophagus''") is an extinct genus of marine ray-finned fish, in the family Scatophagidae, known from the Eocene. It contains a single species, ''E. frontalis'', known from the Monte Bolca site of Italy. It is the earliest scatophagid known from the fossil record. It was originally erroneously identified by Volta (1796) as a specimen of the spotted scat (''Scatophagus argus'', then known as ''Chaetodon argus'') itself, before being described as its own species within ''Scatophagus'' by Agassiz Jean Louis Rodolphe Agassiz ( ; ) FRS (For) FRSE (May 28, 1807 – December 14, 1873) was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history. Spending his early life in Switzerland, he recei ... (1839). It was moved to its own genus, ''Eoscatophagus'', in 1999. As the earliest known member of the Scatophagidae, it is often used for calibrating phylogenies of marine fish evolution. References {{Tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scatophagus
''Scatophagus'' is a genus of ray-finned fishes belonging to the Family (biology), family Scatophagidae. They are found in the Indo-Pacific region. Species in this genus are referred as ''spotted scats''. Taxonomy ''Scatophagus'' was first formally described as a genus in 1831 by the French zoologist Georges Cuvier with ''Chaetodon argus'' which had been Species description, described from India by Linnaeus in 1766 later designated as the type species. The genus name is a compound of ''skatos'' meaning "dung" and ''phaga'' which means to eat, a reference to this species purported taste for human faeces. Species The genus ''Scatophagus'' contains two extant species: * ''Scatophagus argus'' (Linnaeus, 1766) (Spotted scat) * ''Scatophagus tetracanthus'' (Bernard Germain Étienne de la Ville, Comte de Lacépède, Lacépède, 1802) (African scat) Several fossil species (''Scatophagus frontalis'' Louis Agassiz, Agassiz, 1839 from the Ypresian, Early Eocene, ''Scatophagus capellinii' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scatophagus Frontalis
''Scatophagus'' is a genus of ray-finned fishes belonging to the family Scatophagidae. They are found in the Indo-Pacific region. Species in this genus are referred as ''spotted scats''. Taxonomy ''Scatophagus'' was first formally described as a genus in 1831 by the French zoologist Georges Cuvier with ''Chaetodon argus'' which had been described from India by Linnaeus in 1766 later designated as the type species. The genus name is a compound of ''skatos'' meaning "dung" and ''phaga'' which means to eat, a reference to this species purported taste for human faeces. Species The genus ''Scatophagus'' contains two extant species: * ''Scatophagus argus'' (Linnaeus, 1766) (Spotted scat) * '' Scatophagus tetracanthus'' ( Lacépède, 1802) (African scat) Several fossil species (''Scatophagus frontalis'' Agassiz, 1839 from the Early Eocene, ''Scatophagus capellinii'' Bassani, 1889 from the Early Oligocene) from Italy were previously placed in this genus. However, more recent studies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scatophagidae
Scatophagidae, the scats are a small family of ray-finned fishes in the order Perciformes. They are found in the Indo-Pacific region but one species has been introduced elsewhere. Taxonomy Scatophagidae was first formally described as a family in 1883 by the American ichthyologist Theodore Nicholas Gill. They are classified in the superfamily Siganiodea, along with the rabbitfishes of the family Siganidae, within the suborder Percoidei in the 5th edition of ''Fishes of the World''. Other workers have classified them with the surgeonfishes in the order Acanthuriformes or as ''incertae sedis'' within the series Eupercaria. The name of the family comes from its type genus ''Scatophagus'' and this is a compound of ''skatos'' meaning "dung" and ''phaga'' which means to eat, a reference to its species' purported taste for human faeces. Genera There are two genera classified within the Scatophagidae, each containing two extant species: * '' Scatophagus'' Cuvier, 1831 * '' Selenotoca'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Eocene
In the geologic timescale the Ypresian is the oldest age (geology), age or lowest stage (stratigraphy), stratigraphic stage of the Eocene. It spans the time between , is preceded by the Thanetian Age (part of the Paleocene) and is followed by the Eocene Lutetian Age. The Ypresian is consistent with the Lower Eocene (Early Eocene). Events The Ypresian Age begins during the throes of the Paleocene–Eocene Thermal Maximum (PETM). The Fur Formation in Denmark, the Messel shales in Germany, the Oise amber of France and Cambay amber of India are of this age. The Eocene Okanagan Highlands are an uplands subtropical to temperate series of lakes from the Ypresian. The Ypresian is additionally marked by another warming event called the Early Eocene Climatic Optimum (EECO). The EECO is the longest sustained warming event in the Cenozoic record, lasting about 2–3 million years between 53 and 50 Ma. The interval is characterized by low oxygen-18 isotopes, high levels of atmospheric pCO2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaetodon
''Chaetodon'' is a tropical fish genus in the family (biology), family Chaetodontidae. Like their relatives, they are known as "butterflyfish". This genus is by far the largest among the Chaetodontidae, with about 90 living species included here, though most might warrant recognition as distinct genera. Species Extant species There are currently 87 recognized species in this genus: ''Chaetodon sensu stricto'' * ''Chaetodon capistratus'' Linnaeus, 1758 (Foureye butterflyfish) * ''Chaetodon ocellatus'' Marcus Elieser Bloch, Bloch, 1787 (Spotfin butterflyfish) * ''Chaetodon striatus'' Linnaeus, 1758 (Banded butterflyfish) ''C. robustus'' group * ''Chaetodon hoefleri'' Franz Steindachner, Steindachner, 1881 (Four-banded butterflyfish) * ''Chaetodon robustus'' Albert Günther, Günther, 1860 (Three-banded butterflyfish) ''Lepidochaetodon'' group Image:Bep chaetodon punctatofasciatus.jpg, Spotband butterflyfish''Chaetodon (Exornator) punctatofasciatus'' Image:Chaetodon gu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossils Of Italy
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''. Though the fossil record is incomplete, numerous studies have demonstrated that there is enough information available to give a good understanding of the pattern of diversification of life on Earth. In addition, the record can predict and fill gaps such as the discovery of ''Tiktaalik'' in the arctic of Canada. Paleontology includes the study of fossils: their age, method of formation, and evolutionary significance. Specimens are sometimes considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years to 4.1 billion years old. Early edition, published online before print. The ob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene Fish Of Europe
The Eocene ( ) is a geological epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''Ēṓs'', 'Dawn') and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch.See: *Letter from William Whewell to Charles Lyell dated 31 January 1831 in: * From p. 55: "The period next antecedent we shall call Eocene, from ήως, aurora, and χαινος, recens, because the extremely small proportion of living species contained in these strata, indicates what may be considered the first commencement, or ''dawn'', of the existing state of the animate creation." The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope 13C in the atmosphere was exceptionally low in com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ypresian Genera
In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between , is preceded by the Thanetian Age (part of the Paleocene) and is followed by the Eocene Lutetian Age. The Ypresian is consistent with the Lower Eocene (Early Eocene). Events The Ypresian Age begins during the throes of the Paleocene–Eocene Thermal Maximum (PETM). The Fur Formation in Denmark, the Messel shales in Germany, the Oise amber of France and Cambay amber of India are of this age. The Eocene Okanagan Highlands are an uplands subtropical to temperate series of lakes from the Ypresian. The Ypresian is additionally marked by another warming event called the Early Eocene Climatic Optimum (EECO). The EECO is the longest sustained warming event in the Cenozoic record, lasting about 2–3 million years between 53 and 50 Ma. The interval is characterized by low oxygen-18 isotopes, high levels of atmospheric p, and low meridional thermal gradie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Prehistoric Ray-finned Fish Genera
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical system. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Percomorph Genera
Prehistory, also called pre-literary history, is the period of human history between the first known use of stone tools by hominins 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 years ago. It took thousands of years for writing systems to be widely adopted, with writing having spread to almost all cultures by the 19th century. The end of prehistory therefore came at different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. It is based on an old conception of history that without written records there could be no history. The most common conception today is that history is based on evidence, however the concept of prehistory hasn't been completely discarded. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Agassiz
Jean Louis Rodolphe Agassiz ( ; ) FRS (For) FRSE (May 28, 1807 – December 14, 1873) was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history. Spending his early life in Switzerland, he received a PhD at Erlangen and a medical degree in Munich. After studying with Georges Cuvier and Alexander von Humboldt in Paris, Agassiz was appointed professor of natural history at the University of Neuchâtel. He emigrated to the United States in 1847 after visiting Harvard University. He went on to become professor of zoology and geology at Harvard, to head its Lawrence Scientific School, and to found its Museum of Comparative Zoology. Agassiz is known for observational data gathering and analysis. He made institutional and scientific contributions to zoology, geology, and related areas, including multivolume research books running to thousands of pages. He is particularly known for his contributions to ichthyological classification, incl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giovanni Serafino Volta
Giovanni Serafino Volta (1764–1842) was an Italian priest, naturalist, and palaeontologist, best known for his studies of fossil fish from Monte Bolca. Volta was an ''Abate'' (or abbot) and theologian. He was a Canon of the Imperial Basilica in Mantua and the curator of the natural history department at the University of Pavia. He wrote ''Ittiolitologia Veronese del Museo Bozziano ora annesso a quello del Conte Giovambattista Gazola e di altri gabinetti di fossili Veronesi con la versione Latina'', published at Verona between 1796 and 1809. Illustrated with 76 fine plates this is the first treatise on fossil ichthyology in Italy and describes 123 species of fossil fish from the fossil site of Monte Bolca. With Louis Agassiz Jean Louis Rodolphe Agassiz ( ; ) FRS (For) FRSE (May 28, 1807 – December 14, 1873) was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history. Spending his early life in Switzerland, he recei ... he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
