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Megasurcula
''Megasurcula'' is a genus of medium-sized predatory sea snails, marine (ocean), marine gastropod molluscs in the family (biology), family Pseudomelatomidae, a family previously lumped with others collectively known as turrids.Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdes A. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. . ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 Species within this genus occur in the Eastern Pacific OceanMolluscaBase (2020). MolluscaBase. Megasurcula T. L. Casey, 1904. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=432503 on 2020-01-25 Description (Original description) The embryo in this genus is apparently paucispiral, but conoidal. The siphonal canal is obsolete. The base of the shell is broadly obtuse. The Columel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megasurcula Carpenteriana
''Megasurcula carpenteriana'' (Gabb, 1865), also known as Carpenter's turrid, is a species of medium-sized predatory sea snail, a marine (ocean), marine gastropod mollusc in the family (biology), family Pseudomelatomidae, a family previously lumped with others collectively known as turrids.Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdes A. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1–2). ConchBooks: Hackenheim, Germany. . ISSN 0076-2997. 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 This species occurs in the Eastern Pacific Ocean. The species was named in honor of Philip Pearsall Carpenter.MolluscaBase (2018). Megasurcula carpenteriana (Gabb, 1865). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=579016 on 2018-12-05 Subspecies Subspecies within this species include: *''Megasurcula carpe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megasurcula Howei
''Megasurcula howei'' is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. Description The length of the shell attains 36 mm, its diameter 23.6 mm. This high-spired, biconic species differs from '' Megasurcula condonana'' (Anderson and Martin, 1914) by having a smoothly conic spire and relatively narrower body whorl. When the body whorl angulation is used as a point of reference, in non-apertural view, the upper cone of ''M. howei'' is relatively higher than the lower cone, whereas the reverse is true in specimens of the stout-shelled ''M. condonana''. Further differences are the more acute sutural angle and the concave profile of ''M. condonana''. It is closely related to † '' Megasurcula guayasensis'' of the Miocene in Ecuador, but differs by being less slender, a bit taller and less finely noded. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megasurcula Condonana
''Megasurcula condonana'' is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. Description The length of the shell attains 32 mm, its diameter 18.3 mm. The shell shows a characteristic stout biconic profile and 11-12 strong nodes encircling the body whorl. The Kern River specimens differ somewhat by having a uniformly lower spire with sutures riding up higher onto preceding whorls so that only the nodes on the body whorl are exposed. Distribution Fossils of ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megasurcula Wynoocheensis
''Megasurcula wynoocheensis'' is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. The name originates from the Wynoochee Valley of Washington state. Description The length of the shell attains 43 mm, its diameter 21.4 mm. This is a slender, high-spired turrid with a strongly concave whorl profile and sutures riding high upon the vertical segment of the preceding whorls.Miocene Gastropods and Biostratigraphy of the Kern River Area, California; United States Geological Survey Professional Paper 642 : Megasurcula wynoocheensis Distribution Fossils of this marine species have been found in |
Megasurcula Tremperiana
''Megasurcula tremperiana'' is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. Taxonomy There is some confusion about the accepted name for this species. The website Gastropods.com considers this species a synonym of ''Mangelia carpenteri'' (Folin, L. de, 1867) It was also considered a synonym of ''Bathytoma tremperiana'' (Dall, 1911), itself considered by W.H. Dall a synonym of ''Cryptoconus tremperianus'' Dall, 1911. But then WoRMS considers this last name a synonym of ''Megasurcula carpenteriana ''Megasurcula carpenteriana'' (Gabb, 1865), also known as Carpenter's turrid, is a species of medium-sized predatory sea snail, a marine (ocean), marine gastropod mollusc in the family (biology), family Pseudomelatomidae, a family previously lu ...'' (Gabb, 1865)MolluscaBase (2018). Megasurcula carpenteriana (Gabb, 1865). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megasurcula Stearnsiana
''Megasurcula stearnsiana'' is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.MolluscaBase (2018). Megasurcula stearnsiana (Raymond, 1904). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=723947 on 2018-12-06 Description The length of the shell attains 40 mm, its diameter 13 mm. (Original description) The shell is broadly fusiform with an acute spire. The outline of the spire is moderately convex. The shell contains 8½ whorls, convex anteriorly, slightly concave near the suture, the margin at the suture strongly appressed. The suture is distinct. The aperture is longer than the spire. The color of the shell is orange to cream with a broad, spiral, brown band below the suture and nine or ten narrow, clearly defined bands on the body whorl, one or two of these also visible on the spire, bands nearly as wide as the lighter interspaces. The interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megasurcula Remondii
''Megasurcula remondii'' is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae Pseudomelatomidae is a family of predatory sea snails, marine gastropods included in the superfamily Conoidea (previously Conacea) and part of the Neogastropoda ( Bouchet & Rocroi, 2005). In 1995 Kantor elevated the subfamily Pseudomelatomina ..., the turrids and allies. Description The length of the shell attains 78.3 mm. Distribution This marine species occurs off California. References * U. S. Grant and H. R. Gale. 1931. ''Catalogue of the Marine Pliocene and Pleistocene Mollusca of California''. Memoirs of the San Diego Society of Natural History 1:1-1036 External links Gastropods.com: ''Mangelia remondii'' remondii Gastropods described in 1866 {{Pseudomelatomidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megasurcula Centroamericana
''Megasurcula tremperiana'' is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. Distribution Fossils of this marine species have been found in Miocene strata in Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th .... References Landau, Bernard M., et al. "Systematics of the gastropods of the Lower–Middle Miocene Cantaure Formation, Paraguaná Peninsula, Venezuela." Bulletins of American Paleontology 389.390 (2016): 1-582. centroamericana Gastropods described in 2016 {{paleo-Pseudomelatomidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megasurcula Osawanoensis
''Megasurcula osawanoensis'' is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. Distribution Fossils of this marine species have been found in Middle 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 ... strata in Japan. References osawanoensis {{paleo-Pseudomelatomidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megasurcula Guayasensis
''Megasurcula guayasensis'' is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. Description Distribution Fossils of this marine species have been found in Miocene strata in Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ' .... References External links California Academy of Sciences: photo of ''Megasurcula guayasensis''Bulletin of American Paleontology, California Acad. Sci., Proc, 4th ser., 4, VOL. XXXIII (1949-1952) guayasensis Gastropods described in 1951 {{paleo-Pseudomelatomidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megasurcula Cryptoconoides
''Megasurcula cryptoconoides'' is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. Distribution Fossils of this marine species have been found in Late 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 ... strata in the Otokawa Formation, Japan. References *Makiyam, J. 1926. ''Tertiary Fossils from North Kankyo-do, Korea''. Memoirs of the College of Science, Kyoto Imperial University, ser. B, Vol. II, No. 3, pp. 143–160, pls. XI-XIII. External links The Tohoku University Museum: ''Megasurcula cryptoconoides'' cryptoconoides Gastropods described in 1926 {{paleo-Pseudomelatomidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megasurcula Siogamensis
''Megasurcula siogamensis'' is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies. Distribution Fossils of this marine species have been found in Middle 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 ... strata in Japan. References * Nomura, S. "Miocene Mollusca from Siogama, Northeast Honsyu, Japan." Saito Ho-on Kai Museum, Research Bulletin 6 (1935): 193–234. siogamensis Gastropods described in 1935 {{paleo-Pseudomelatomidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
