|
Pourtalesia
''Pourtalesia'' is a genus of the family Pourtalesiidae which belongs to the irregular (bilaterally symmetrical) sea urchins. The animals measure 5–6 cm in length and live in the abyssal zone of the Atlantic, Pacific, Indopacific and Antarctic Oceans where they have been found in more than 3,000 m depth. The mouth opening of these animals is located anteriorly and the lantern of Aristotle is missing as typically for holasteroid sea urchins. Species Currently, 11 species of ''Pourtalesia'' are recognized. * '' Pourtalesia alcocki'' Koehler, 1914 * '' Pourtalesia aurorae'' Koehler, 1926 * '' Pourtalesia debilis'' Koehler, 1926 * '' Pourtalesia heptneri'' Mironov, 1978 * '' Pourtalesia hispida'' A. Agassiz, 1897 * '' Pourtalesia jeffreysi'' Thomson Thomson may refer to: Names * Thomson (surname), a list of people with this name and a description of its origin * Thomson baronets, four baronetcies created for persons with the surname Thomson Businesses and organ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourtalesia Vinogradovae
''Pourtalesia'' is a genus of the family Pourtalesiidae which belongs to the irregular (bilaterally symmetrical) sea urchins. The animals measure 5–6 cm in length and live in the abyssal zone of the Atlantic, Pacific, Indopacific and Antarctic Oceans where they have been found in more than 3,000 m depth. The mouth opening of these animals is located anteriorly and the lantern of Aristotle is missing as typically for holasteroid sea urchins. Species Currently, 11 species of ''Pourtalesia'' are recognized. * ''Pourtalesia alcocki'' Koehler, 1914 * ''Pourtalesia aurorae'' Koehler, 1926 * ''Pourtalesia debilis'' Koehler, 1926 * ''Pourtalesia heptneri'' Mironov, 1978 * ''Pourtalesia hispida'' A. Agassiz, 1897 * ''Pourtalesia jeffreysi'' Thomson, 1873 * ''Pourtalesia laguncula'' A. Agassiz, 1879 * ''Pourtalesia miranda'' A. Agassiz, 1869 * ''Pourtalesia tanneri'' A. Agassiz, 1898 * ''Pourtalesia thomsoni ''Pourtalesia'' is a genus of the family Pourtalesiidae wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourtalesia Aurorae
''Pourtalesia'' is a genus of the family Pourtalesiidae which belongs to the irregular (bilaterally symmetrical) sea urchins. The animals measure 5–6 cm in length and live in the abyssal zone of the Atlantic, Pacific, Indopacific and Antarctic Oceans where they have been found in more than 3,000 m depth. The mouth opening of these animals is located anteriorly and the lantern of Aristotle is missing as typically for holasteroid sea urchins. Species Currently, 11 species of ''Pourtalesia'' are recognized. * ''Pourtalesia alcocki'' Koehler, 1914 * '' Pourtalesia aurorae'' Koehler, 1926 * '' Pourtalesia debilis'' Koehler, 1926 * '' Pourtalesia heptneri'' Mironov, 1978 * '' Pourtalesia hispida'' A. Agassiz, 1897 * '' Pourtalesia jeffreysi'' Thomson Thomson may refer to: Names * Thomson (surname), a list of people with this name and a description of its origin * Thomson baronets, four baronetcies created for persons with the surname Thomson Businesses and organ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourtalesia Thomsoni
''Pourtalesia'' is a genus of the family Pourtalesiidae which belongs to the irregular (bilaterally symmetrical) sea urchins. The animals measure 5–6 cm in length and live in the abyssal zone of the Atlantic, Pacific, Indopacific and Antarctic Oceans where they have been found in more than 3,000 m depth. The mouth opening of these animals is located anteriorly and the lantern of Aristotle is missing as typically for holasteroid sea urchins. Species Currently, 11 species of ''Pourtalesia'' are recognized. * ''Pourtalesia alcocki'' Koehler, 1914 * ''Pourtalesia aurorae'' Koehler, 1926 * '' Pourtalesia debilis'' Koehler, 1926 * '' Pourtalesia heptneri'' Mironov, 1978 * '' Pourtalesia hispida'' A. Agassiz, 1897 * '' Pourtalesia jeffreysi'' Thomson Thomson may refer to: Names * Thomson (surname), a list of people with this name and a description of its origin * Thomson baronets, four baronetcies created for persons with the surname Thomson Businesses and organi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourtalesia Tanneri
''Pourtalesia'' is a genus of the family Pourtalesiidae which belongs to the irregular (bilaterally symmetrical) sea urchins. The animals measure 5–6 cm in length and live in the abyssal zone of the Atlantic, Pacific, Indopacific and Antarctic Oceans where they have been found in more than 3,000 m depth. The mouth opening of these animals is located anteriorly and the lantern of Aristotle is missing as typically for holasteroid sea urchins. Species Currently, 11 species of ''Pourtalesia'' are recognized. * ''Pourtalesia alcocki'' Koehler, 1914 * ''Pourtalesia aurorae'' Koehler, 1926 * '' Pourtalesia debilis'' Koehler, 1926 * '' Pourtalesia heptneri'' Mironov, 1978 * '' Pourtalesia hispida'' A. Agassiz, 1897 * '' Pourtalesia jeffreysi'' Thomson, 1873 * '' Pourtalesia laguncula'' A. Agassiz, 1879 * '' Pourtalesia miranda'' A. Agassiz, 1869 * '' Pourtalesia tanneri'' A. Agassiz, 1898 * ''Pourtalesia thomsoni ''Pourtalesia'' is a genus of the family Pourtalesi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourtalesia Laguncula
''Pourtalesia'' is a genus of the family Pourtalesiidae which belongs to the irregular (bilaterally symmetrical) sea urchins. The animals measure 5–6 cm in length and live in the abyssal zone of the Atlantic, Pacific, Indopacific and Antarctic Oceans where they have been found in more than 3,000 m depth. The mouth opening of these animals is located anteriorly and the lantern of Aristotle is missing as typically for holasteroid sea urchins. Species Currently, 11 species of ''Pourtalesia'' are recognized. * ''Pourtalesia alcocki'' Koehler, 1914 * ''Pourtalesia aurorae'' Koehler, 1926 * '' Pourtalesia debilis'' Koehler, 1926 * '' Pourtalesia heptneri'' Mironov, 1978 * '' Pourtalesia hispida'' A. Agassiz, 1897 * '' Pourtalesia jeffreysi'' Thomson, 1873 * '' Pourtalesia laguncula'' A. Agassiz, 1879 * ''Pourtalesia miranda'' A. Agassiz, 1869 * ''Pourtalesia tanneri'' A. Agassiz, 1898 * ''Pourtalesia thomsoni ''Pourtalesia'' is a genus of the family Pourtalesiid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourtalesia Jeffreysi
''Pourtalesia'' is a genus of the family Pourtalesiidae which belongs to the irregular (bilaterally symmetrical) sea urchins. The animals measure 5–6 cm in length and live in the abyssal zone of the Atlantic, Pacific, Indopacific and Antarctic Oceans where they have been found in more than 3,000 m depth. The mouth opening of these animals is located anteriorly and the lantern of Aristotle is missing as typically for holasteroid sea urchins. Species Currently, 11 species of ''Pourtalesia'' are recognized. * ''Pourtalesia alcocki'' Koehler, 1914 * ''Pourtalesia aurorae'' Koehler, 1926 * '' Pourtalesia debilis'' Koehler, 1926 * '' Pourtalesia heptneri'' Mironov, 1978 * '' Pourtalesia hispida'' A. Agassiz, 1897 * '' Pourtalesia jeffreysi'' Thomson, 1873 * ''Pourtalesia laguncula'' A. Agassiz, 1879 * ''Pourtalesia miranda'' A. Agassiz, 1869 * ''Pourtalesia tanneri'' A. Agassiz, 1898 * ''Pourtalesia thomsoni ''Pourtalesia'' is a genus of the family Pourtalesiida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourtalesia Hispida
''Pourtalesia'' is a genus of the family Pourtalesiidae which belongs to the irregular (bilaterally symmetrical) sea urchins. The animals measure 5–6 cm in length and live in the abyssal zone of the Atlantic, Pacific, Indopacific and Antarctic Oceans where they have been found in more than 3,000 m depth. The mouth opening of these animals is located anteriorly and the lantern of Aristotle is missing as typically for holasteroid sea urchins. Species Currently, 11 species of ''Pourtalesia'' are recognized. * ''Pourtalesia alcocki'' Koehler, 1914 * ''Pourtalesia aurorae'' Koehler, 1926 * '' Pourtalesia debilis'' Koehler, 1926 * '' Pourtalesia heptneri'' Mironov, 1978 * '' Pourtalesia hispida'' A. Agassiz, 1897 * ''Pourtalesia jeffreysi'' Thomson, 1873 * ''Pourtalesia laguncula'' A. Agassiz, 1879 * ''Pourtalesia miranda'' A. Agassiz, 1869 * ''Pourtalesia tanneri'' A. Agassiz, 1898 * ''Pourtalesia thomsoni ''Pourtalesia'' is a genus of the family Pourtalesiidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourtalesia Heptneri
''Pourtalesia'' is a genus of the family Pourtalesiidae which belongs to the irregular (bilaterally symmetrical) sea urchins. The animals measure 5–6 cm in length and live in the abyssal zone of the Atlantic, Pacific, Indopacific and Antarctic Oceans where they have been found in more than 3,000 m depth. The mouth opening of these animals is located anteriorly and the lantern of Aristotle is missing as typically for holasteroid sea urchins. Species Currently, 11 species of ''Pourtalesia'' are recognized. * ''Pourtalesia alcocki'' Koehler, 1914 * ''Pourtalesia aurorae'' Koehler, 1926 * '' Pourtalesia debilis'' Koehler, 1926 * '' Pourtalesia heptneri'' Mironov, 1978 * ''Pourtalesia hispida'' A. Agassiz, 1897 * ''Pourtalesia jeffreysi'' Thomson, 1873 * ''Pourtalesia laguncula'' A. Agassiz, 1879 * ''Pourtalesia miranda'' A. Agassiz, 1869 * ''Pourtalesia tanneri'' A. Agassiz, 1898 * ''Pourtalesia thomsoni ''Pourtalesia'' is a genus of the family Pourtalesiidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourtalesia Debilis
''Pourtalesia'' is a genus of the family Pourtalesiidae which belongs to the irregular (bilaterally symmetrical) sea urchins. The animals measure 5–6 cm in length and live in the abyssal zone of the Atlantic, Pacific, Indopacific and Antarctic Oceans where they have been found in more than 3,000 m depth. The mouth opening of these animals is located anteriorly and the lantern of Aristotle is missing as typically for holasteroid sea urchins. Species Currently, 11 species of ''Pourtalesia'' are recognized. * ''Pourtalesia alcocki'' Koehler, 1914 * ''Pourtalesia aurorae'' Koehler, 1926 * '' Pourtalesia debilis'' Koehler, 1926 * ''Pourtalesia heptneri'' Mironov, 1978 * ''Pourtalesia hispida'' A. Agassiz, 1897 * ''Pourtalesia jeffreysi'' Thomson, 1873 * ''Pourtalesia laguncula'' A. Agassiz, 1879 * ''Pourtalesia miranda'' A. Agassiz, 1869 * ''Pourtalesia tanneri'' A. Agassiz, 1898 * ''Pourtalesia thomsoni ''Pourtalesia'' is a genus of the family Pourtalesiidae w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourtalesia Alcocki
''Pourtalesia'' is a genus of the family Pourtalesiidae which belongs to the irregular (bilaterally symmetrical) sea urchins. The animals measure 5–6 cm in length and live in the abyssal zone of the Atlantic, Pacific, Indopacific and Antarctic Oceans where they have been found in more than 3,000 m depth. The mouth opening of these animals is located anteriorly and the lantern of Aristotle is missing as typically for holasteroid sea urchins. Species Currently, 11 species of ''Pourtalesia'' are recognized. * '' Pourtalesia alcocki'' Koehler, 1914 * '' Pourtalesia aurorae'' Koehler, 1926 * '' Pourtalesia debilis'' Koehler, 1926 * '' Pourtalesia heptneri'' Mironov, 1978 * '' Pourtalesia hispida'' A. Agassiz, 1897 * '' Pourtalesia jeffreysi'' Thomson Thomson may refer to: Names * Thomson (surname), a list of people with this name and a description of its origin * Thomson baronets, four baronetcies created for persons with the surname Thomson Businesses and orga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourtalesiidae
The pourtalesiids (Pourtalesiidae) are a family of irregular sea urchins that live in the deep sea. They are secondarily bilateral-symmetrical and like other representatives of the taxon Holasteroida they lack the lantern of Aristotle, which is typical for many other sea urchins. The genus '' Pourtalesia'' was named after Louis-François de Pourtalès who first collected these animals while dredging at a depth of 600 m. The family is known already from the Upper Cretaceous (Maastrichtian The Maastrichtian () is, in the ICS geologic timescale, the latest age (uppermost stage) of the Late Cretaceous Epoch or Upper Cretaceous Series, the Cretaceous Period or System, and of the Mesozoic Era or Erathem. It spanned the interval ...) and is distributed worldwide. Species and Genera Currently, there are 10 genera with 28 extant and 5 extinct species described. * genus '' Ceratophysa'' Pomel, 1883 ** '' Ceratophysa ceratopyga'' ( A. Agassiz, 1879) ** '' Ceratophysa rosea'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pourtalesia Miranda
''Pourtalesia miranda'', commonly known as the wonderful sea urchin, is a species of sea urchin in the family Pourtalesiidae. It is found at abyssal depths in the Atlantic Ocean. Description The thin-shelled test is bottle-shaped, more than twice as long as it is wide, and with a marked rostrum at the posterior end. At the anterior end, the aboral ambulacrum is sunk, forming a funnel-like, forward-facing, nearly circular opening that leads to the peristome. The aboral surface has scattered low tubercles. ''Pourtalesia miranda'' differs from the otherwise similar '' Helgocystis'' in having the posterior ambulacral plate separate from the others. Adults are about long. The post-larval ''Pourtalesia miranda'' is at first radially symmetric, but as it grows, it becomes increasingly bilaterally symmetric. Growth is performed in two ways, by the creation of new plates at the apical end, and by the enlargement of existing plates by accretion around their margins. It is in the combina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |