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Foraminifera.eu Glossary by Subject    by alphabet    contents only
created and filled by Brian Ottway, Michael Hesemann and Werner Baubkus.
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Part:
Chapter: Section: Term:
test
        Clear

2.3.1 chamber arrangement
The pattern of disposition of chambers in a test
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
annular
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
biloculine
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
biserial
The chambers are arranged alternating in a two row serial
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
changing plane of coiling
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
coil
a complete turn of 360° for a spiral test
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
dextral coiling
in a trochospiral chamber arrangement the chambers are added to the right of the preceding ones. Place the specimen on the spiral side with the last chamber on top. Image from Schmidt et al. 2015. See also sinistral coiling.
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
distal
in the direction of growth, farthest away from the proloculus
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
lateral side
in a trochospiral chamber arrangement the side neither being the spiral nor the umbilical side. Image from Schmidt et al. 2015 .
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
miliolid
The test is build by tubular chambers which are coiled like a broken spiral. With an rotation angle of 180° this arrangement is called biloculine, with an angle of 120° triloculine and with an angle of 70° quinqueloculine (see figure). This chamber arrangement is the giving name for the suborder Miliolina
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
planispiral
The chambers are arranged in a plane spiral. In contrast to a trochospiral arrangement, there is no growth in the 3rd axis while new chambers are added during growth of the foraminifera.
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
quinqueloculine
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
single chambered
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
sinistral coiling
in a trochospiral chamber arrangement the chambers are added to the left of the preceding ones. Place the specimen on the spiral side with the last chamber on top. Image from Schmidt et al. 2015 . See also dextral coiling.
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
spiral side
in a trochospiral chamber arrangement the side opposite to the umbiliculus. Image from Schmidt et al. 2015 .
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
sutur
the contact line between two chambers or between two coils
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
triloculine
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
triserial
The chambers are arranged with 3 chambers per whorl, often trochospiral
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
trochospiral
The chambers are arranged in a three dimensional spiral. The chamber arrangement is in whorls or coils where the rate of translation (net rate of movement along the growth axis to the net rate of movement away from the axis) is more than zero. Spiral and umbilical sides are dissimilar.
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
tubular
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
umbilical side
in a trochospiral chamber arrangement the side with the umbiliculus. Image from Schmidt et al. 2015 .
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
umbiliculus
the inner, axial space of spiral shaped foraminifera
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
uniserial
The chambers of the multilocular test are arranged in one single linear series
 Part systematics  Chapter chamber  Section chamber arrangement
 
    
whorl
synonym for coil
 Part systematics  Chapter chamber  Section chamber arrangement
 
    


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