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Megachasma is a genus of sharks. It is usually considered to be the sole genus in the distinct family Megachasmidae, though suggestion has been made that it may belong in the family Cetorhinidae, of which the basking shark is currently the sole extant member. Megachasma is known from a single living species, Megachasma pelagios. They are a very rare genus of shark that are mainly found in temperate and tropical waters among the Pacific, Atlantic and Indian oceans. The top siting spots were Taiwan, Japan, and the Philippines.

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  • Megachasma (it)
  • Megachasma (en)
  • Megachasma (nl)
  • 巨口鲨属 (zh)
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  • Megachasma is een geslacht van kraakbeenvissen uit de familie van de Megachasmidae. (nl)
  • 巨口鲨属(学名:Megachasma)是巨口鲨科的一屬。 (zh)
  • Megachasma is a genus of sharks. It is usually considered to be the sole genus in the distinct family Megachasmidae, though suggestion has been made that it may belong in the family Cetorhinidae, of which the basking shark is currently the sole extant member. Megachasma is known from a single living species, Megachasma pelagios. They are a very rare genus of shark that are mainly found in temperate and tropical waters among the Pacific, Atlantic and Indian oceans. The top siting spots were Taiwan, Japan, and the Philippines. (en)
  • Megachasma (Taylor, Compagno & Struhsaker, 1983) è un genere di squali. Di solito è considerato l'unico genere nella famiglia Megachasmidae (Taylor, Compagno & Struhsaker, 1983), sebbene sia stato suggerito che possa appartenere alla famiglia Cetorhinidae, di cui lo squalo elefante è attualmente l'unico membro esistente. Megachasma pelagios è l'unica specie vivente del genere e si trova principalmente nelle acque temperate e tropicali degli oceani Pacifico, Atlantico e Indiano. Le segnalazioni di avvistamenti più numerose provengono da Giappone, Taiwan e Filippine. (it)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Megachasma_pelagios.jpg
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  • Taylor, Compagno & Struhsaker, 1983 (en)
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  • Q17280270 (en)
  • Q17280271 (en)
image caption
  • Megachasma pelagios (en)
parent authority
  • Taylor, Compagno & Struhsaker, 1983 (en)
subdivision
  • *†Megachasma alisonae *†Megachasma applegatei *Megachasma pelagios (en)
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  • Species (en)
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  • Megachasma (en)
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  • Megachasma is a genus of sharks. It is usually considered to be the sole genus in the distinct family Megachasmidae, though suggestion has been made that it may belong in the family Cetorhinidae, of which the basking shark is currently the sole extant member. Megachasma is known from a single living species, Megachasma pelagios. In addition to the living M. pelagios, however, two extinct megamouth species – the Priabonian M. alisonae and the Oligocene–Miocene M. applegatei – have also recently been proposed on the basis of fossilized tooth remains. An early ancestor of the recent species Megachasma pelagios was reported from the early Miocene (Burdigalian) of Belgium. However, the Cretaceous-aged M. comanchensis has been recently reclassified as an odontaspid shark in the genus Pseudomegachasma, and is in fact unrelated to the megamouth shark despite similar teeth morphology. They are a very rare genus of shark that are mainly found in temperate and tropical waters among the Pacific, Atlantic and Indian oceans. The top siting spots were Taiwan, Japan, and the Philippines. (en)
  • Megachasma (Taylor, Compagno & Struhsaker, 1983) è un genere di squali. Di solito è considerato l'unico genere nella famiglia Megachasmidae (Taylor, Compagno & Struhsaker, 1983), sebbene sia stato suggerito che possa appartenere alla famiglia Cetorhinidae, di cui lo squalo elefante è attualmente l'unico membro esistente. Megachasma pelagios è l'unica specie vivente del genere e si trova principalmente nelle acque temperate e tropicali degli oceani Pacifico, Atlantico e Indiano. Le segnalazioni di avvistamenti più numerose provengono da Giappone, Taiwan e Filippine. Oltre a M. pelagios, recentemente sono state proposte anche due specie estinte di megamouth, il M. alisonae del Priaboniano e il M. applegatei dell'Oligocene-Miocene, sulla base di resti di denti fossilizzati. Un primo antenato della specie recente Megachasma pelagios è stato segnalato dal Miocene inferiore (Burdigaliano) del Belgio. (it)
  • Megachasma is een geslacht van kraakbeenvissen uit de familie van de Megachasmidae. (nl)
  • 巨口鲨属(学名:Megachasma)是巨口鲨科的一屬。 (zh)
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