Onobops

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Onobops
Temporal range: Miocene-Recent [1]
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Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked):clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha
Superfamily: Rissooidea
Family: Cochliopidae [1] or Hydrobiidae [2]
Genus:Onobops
F. G. Thompson, 1968 [3]

Onobops is a genus of very small aquatic snails, operculate gastropod mollusks in the family Cochliopidae [1] or in the Hydrobiidae. [2]

A genus is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.

Aquatic animal under water animals

An aquatic animal is an animal, either vertebrate or invertebrate, which lives in the water for most or all of its lifetime. Many insects such as mosquitoes, mayflies, dragonflies and caddisflies have aquatic larvae, with winged adults. Aquatic animals may breathe air or extract oxygen that dissolved in water through specialised organs called gills, or directly through the skin. Natural environments and the animals that live in them can be categorized as aquatic (water) or terrestrial (land). This designation is paraphyletic.

Snail mollusc

A snail is, in loose terms, a shelled gastropod. The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name snail is also used for most of the members of the molluscan class Gastropoda that have a coiled shell that is large enough for the animal to retract completely into. When the word "snail" is used in this most general sense, it includes not just land snails but also numerous species of sea snails and freshwater snails. Gastropods that naturally lack a shell, or have only an internal shell, are mostly called slugs, and land snails that have only a very small shell are often called semi-slugs.

Species

Species within the genus Onobops include:

The Pebas Formation is a lithostratigraphic unit of Miocene age, found in western Amazonia. The formation extends over 1,000,000 square kilometres (390,000 sq mi), including parts of Brazil, Peru, Ecuador and Colombia. It is interpreted as representing the deposits of a lake or series of lakes, formed within the foreland basin of the Andes mountain belt. It is known for its abundant fossil ostracods and molluscs and an unusually diverse group of crocodylians.

Onobops crassus is a species of very small aquatic snail, an operculate gastropod mollusk in the family Hydrobiidae.

Onobops jacksoni, common name the fine-lined hydrobe, is a species of very small aquatic snail, an operculate gastropod mollusk in the family Hydrobiidae.

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References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 Wesselingh F. P., Anderson L. C. & Kadolsky D. (2006). "Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia". Scripta Geologica 1333: 19-290. PDF.
  2. 1 2 Onobops F.G. Thompson, 1968 . WoRMS (2010). Onobops F. G. Thompson, 1969. Accessed through: World Register of Marine Species at http://www.marinespecies.eu/aphia.php?p=taxdetails&id=159976 on 9 August 2010.
  3. ↑ Thompson F. G. (1968). The aquatic snails of the family Hydrobiidae of peninsular Florida. University of Florida Press, Gainesville: 28.
  4. ↑ Onobops crassus F. G. Thompson, 1968 .  Retrieved through: World Register of Marine Species  on 9 August 2010.
  5. ↑ Onobops jacksoni (Bartsch, 1953) .  Retrieved through: World Register of Marine Species  on 9 August 2010.


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