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Mene
The moonfish of the genus ''Mene'', the sole extant genus of the family Menidae, are disk-shaped fish which bear a vague resemblance to gourami, thanks to their thread-like pelvic fins. Today, the genus is represented only by ''Mene maculata'' of the Indo-Pacific, where it is a popular food fish, especially in the Philippines, where it is known as ''bilong-bilong'', ''chabita'', ''hiwas'' or ''tahas''. Taxonomy Anatomical and recent molecular studies strongly suggest a relationship with the pomfrets, dolphinfishes, remoras and the Carangidae, jacks in the Order (biology), order Carangiformes. Fossil record As a genus, ''Mene'' has a long fossil history, with species found in marine sediments throughout the Cenozoic Era.Matt Friedman, and G. David Johnson. “A New Species of Mene (Perciformes: Menidae) from the Paleocene of South America, with Notes on Paleoenvironment and a Brief Review of Menid Fishes.” Journal of Vertebrate Paleontology, vol. 25, no. 4, 2005, pp. 770†... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Mene Rhombea
''Mene rhombea'' is an extinct perciform fish belonging to the family Menidae. During the Middle Eocene (Lutetian epoch), about 48 to 40 mya, these fishes lived in the Tethys Ocean, a large tropical sea in the area corresponding to the current Mediterranean. This ocean was extended between the continents of Gondwana and Laurasia. At this time, where Monte Bolca is today, ''M. rhombea'', and its relative, '' M. oblonga'', lived in a tropical lagoon. Description ''Mene rhombea'' had a laterally compressed body, very long and slim pelvic fins and a wide triangular tail fin. As suggested by their fossils' small, upturned mouths, and by comparison of its living relative, as ''Mene maculata'', fishes of this species were planktivore. The species shows close affinities with contemporary species inhabiting the coral reef environment of the Indo-Pacific warm seas. Distribution Their greatly valued fossils comes from the laggerstat Monte Bolca, about 30 kilometres north-east of Verona, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Mene Maculata
''Mene maculata'', the moonfish, is the only extant member of the genus ''Mene'' and of the family Menidae. The body is highly compressed laterally and very deep vertically. The ventral profile is steep, with a sharp ventral edge. The caudal (tail) fin is deeply forked. The mouth is small and protrusible. The body is silvery below and blue-green on the back, with three to four rows of dark gray spots on the upper side. The first two rays of the pelvic fin are greatly elongated, forming a prominent backward-pointing process on the underside of the fish. The moonfish is native to the Indian Ocean, including the Red Sea and Persian Gulf, and in the western Pacific where they can be found near the bottom in brackish and marine waters in the vicinity of reefs. They occur at depths of from . This species can reach a length of TL. Habitat and Diet It inhabits deeper coastal waters near the bottom on both the continental shelves and around major island groups; sometimes in river es ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Mene Purdyi
''Mene purdyi'' an extinct species of ray-finned fish in the genus ''Mene'', from Late Thanetian-aged marine deposits in northern Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac .... ''M. purdyi'' is currently known only from a single skull and a few post-cranial bones. ''M. purdyi'' is among the largest, if not the largest, members of the genus, as the skull suggests that it would have been over in life. The living species, '' M. maculata'', by comparison, grows to an average length of . References * "A new species of Mene (Perciformes: Menidae) from the Paleocene of South America, with notes on paleoenvironment and a brief review of menid fishes. Menidae, †Mene purdyi Paleocene fish Thanetian life Prehistoric fish of South America Paleogene Peru Fossils of Per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Mene Oblonga
''Mene oblonga'' is an extinct species of ray-finned fish that first appeared in the Monte Bolca Lagerstatten during the Lutetian epoch of the Eocene. For a menid, it has a very shallow body, especially in comparison with the sympatric '' Mene rhombea''. Its fossils are very rare in Monte Bolca. A single fossil from the early Oligocene, referred to as "''Mene oblonga'' var. ''pusilla''," was found in Chiavon, Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b .... References"A new species of Mene (Perciformes: Menidae) from the Paleocene of South America, with notes on paleoenvironment and a brief review of menid fishes." Menidae Eocene fish Oligocene fish Rupelian species extinctions Prehistoric life of Europe {{paleo-perciformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Carangiformes
Carangiformes is a large, diverse order of ray-finned fishes within the clade Percomorpha. It is part of a sister clade to the Ovalentaria, alongside its sister group, the Anabantaria (including Anabantiformes and Synbranchiformes). The Carangiformes have been long regarded as a monotypic order with only the family Carangidae within it by some authorities, and the other current families within the order have been previously classified as part of the wider order Perciformes. The 5th edition of '' Fishes of the World'' classify six families within Carangiformes, with more recent authorities expanding the order to include up to 30 families, based on phylogenetic evidence. The earliest known carangiforms are two fossil species of '' Mene'', '' Mene purydi'' from Peru and '' Mene phosphatica'' from Tunisia, both of which are known from the Late Paleocene. Taxonomy This order has often been either subsumed within Perciformes or used exclusively to refer to families classified ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Lagerstätte
A Fossil-Lagerstätte (, from ''Lager'' 'storage, lair' '' Stätte'' 'place'; plural ''Lagerstätten'') is a sedimentary deposit that preserves an exceptionally high amount of palaeontological information. ''Konzentrat-Lagerstätten'' preserve a high concentration of fossils, while ''Konservat-Lagerstätten'' offer exceptional fossil preservation, sometimes including preserved soft tissues. ''Konservat-Lagerstätten'' may have resulted from carcass burial in an anoxic environment with minimal bacteria, thus delaying the decomposition of both gross and fine biological features until long after a durable impression was created in the surrounding matrix. ''Fossil-Lagerstätten'' spans geological time from the Neoproterozoic era to the present. Worldwide, some of the best examples of near-perfect fossilization are the Cambrian Maotianshan shales and Burgess Shale, the Ordovician Soom Shale, the Silurian Waukesha Biota, the Devonian Hunsrück Slates and Gogo Formation, the Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Bolca
Bolca is a village in the Veneto, on the southern margin of the Italian Alps. It is a of the ''comune'' of Vestenanova, in the province of Verona. The area is famous for the marine fossils from the lagerstätte of '' Monte Bolca''. It was one of the first fossil sites with high quality preservation known to Europeans, and is still an important source of fossils from the Eocene. Geography Bolca lies in the Lessini Alps. Monte Bolca was originally at the bottom of the Tethys Ocean before being uplifted from the ocean floor during the formation of the Alps. This happened in two stages, one 24 million years ago and one between 30 and 50 million years ago. History The area was settled in prehistoric times, there are remains of a hill fort on Monte Purga dating from around 1000 BC. The Romans were active in the area, and by 1000 CE the village had come under the control of a convent of the Augustinian Eremitani. In the thirteenth century the fortunes of the Vestenanova area were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Neogene
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 human ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Otolith
An otolith (, ' ear + , ', a stone), also called otoconium, statolith, or statoconium, is a calcium carbonate structure in the saccule or utricle (ear), utricle of the inner ear, specifically in the vestibular system of vertebrates. The saccule and utricle, in turn, together make the ''otolith organs''. These organs are what allows an organism, including humans, to perceive linear acceleration, both horizontally and vertically (gravity). They have been identified in both extinct and extant vertebrates. Counting the annual growth rings on the otoliths is a common technique in estimating the age of fish. Description Endolymphatic infillings such as otoliths are structures in the saccule and Utricle (ear), utricle of the inner ear, specifically in the Labyrinth (inner ear), vestibular labyrinth of all vertebrates (fish, amphibians, reptiles, mammals and birds). In vertebrates, the saccule and utricle together make the ''otolith organs''. Both statoconia and otoliths are used as gra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
