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Balanus
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Balanus is a genus of barnacles in the family Balanidae of the subphylum Crustacea.

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Fossil shells of Balanus from Pliocene

This genus is known in the fossil record from the Jurassic to the Quaternary periods (age range: from 189.6 to 0.0 million years ago.). Fossil shells within this genus have been found all over the world.[1]

Description

The bodies of these organisms are totally enclosed by a stony gray-whitish shell. The size of these shells ranges from 5 millimeters to 10 centimeters. They take the form of a cone consisting of six plates fixed on the rocks. The active animal can only be observed within the water when the shell opens and the barnacles expose two branched appendages (cirri ) regularly hitting the water to catch food. They mainly feed on plankton.

Habitat

These barnacles can be found in coastal areas at low shallow depth, although they can also be seen living out of the water. They commonly colonize stones, rocks and shells. They are found in abundance on the shells of mussels.

Species

Species within the genus Balanus include:[2]

The species Balanus balanoides (common barnacle, common rock barnacle, northern rock barnacle) has been reclassified as Semibalanus balanoides in the family Archaeobalanidae, due to its membranous base.

References

  1. ^ Fossilworks
  2. ^ Benny K. K. Chan (2011). "Balanus Costa, 1778". World Register of Marine Species..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""'"'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}

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Balanus: Brief Summary
provided by wikipedia EN

Balanus is a genus of barnacles in the family Balanidae of the subphylum Crustacea.

 src= Fossil shells of Balanus from Pliocene

This genus is known in the fossil record from the Jurassic to the Quaternary periods (age range: from 189.6 to 0.0 million years ago.). Fossil shells within this genus have been found all over the world.

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Wikipedia authors and editors
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visit source
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wikipedia EN
ID
50371993e496cbe8fe99966815920add
Classification
provided by World Register of Marine Species
According to RAMS, the genus Balanus belongs to the Bathylasmatidae family instead of the Balanidae family.
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WoRMS Editorial Board
bibliographic citation
Clarke, A.; Johnston, N.M. (2003). Antarctic marine benthic diversity. <i>Oceanography and Marine Biology: an Annual Review</i>. 41: 47-114. Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.
i18n: Contributor
Simon Amelinckx [email]
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World Register of Marine Species
ID
WoRMS:note:52855
Habitat
provided by World Register of Marine Species
Known from seamounts and knolls
license
cc-by-4.0
copyright
WoRMS Editorial Board
bibliographic citation
Clarke, A.; Johnston, N.M. (2003). Antarctic marine benthic diversity. <i>Oceanography and Marine Biology: an Annual Review</i>. 41: 47-114. Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.
i18n: Contributor
[email]
original
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World Register of Marine Species
ID
WoRMS:note:170712