MARINE ENVIRONMENTS
Faunal Associations and Salinity
The fifteen foraminifera assemblages and their associated salinities correspond to various macrofaunal associations and ostracode assemblages. The following table (Rodrigues), whose information was collected in the western basin of the Champlain Sea, portrays these relationships.
Paleosalinity for Microfaunal Assemblages and Macrofaunal Associations
Foraminiferal
Assemblage |
Macrofaunal
Association |
Microfossil
Assemblage |
Salinity
of Bottom Water |
|||
# |
Dominant
Species |
# |
Dominant
Species |
# |
Dominant
Species |
|
15 |
Elphidium
sp. Haynesina
orbicularis |
8 |
Mya
arenaria |
- |
None |
Low
(<15Å) |
3 |
Macoma
balthica |
|||||
14 |
Elphidium
sp. Haynesina
orbicularis Elphidium
clavatum |
3 |
Macoma
balthica |
9 |
Cytheromorpha
macchesneyi |
|
8 |
Cytheromorpha
macchesneyi Heterocyprideis
sorbyana Sarsicytheridea
punctillata |
|||||
13 |
Elphidium
clavatum Haynesina
orbicularis Elphidium
sp. |
4 |
Hiatella
arctica |
6 |
Sarsicytheridea
punctillata Heterocyprideis
sorbyana |
Intermediate (15-30Å) |
3 |
Macoma
balthica |
8 |
Cytheromorpha
macchesneyi Heterocyprideis
sorbyana Sarsicytheridea
punctillata |
|||
12 |
Elphidium
clavatum |
4 |
Hiatella
arctica |
7 |
Cytheropteron
latissimum Sarsicytheridea
punctillata |
|
2 |
Portlandia
arctica |
2 |
Cytheropteron
pseudomontrosiense |
|||
11 |
Elphidium
clavatum Haynesina
orbicularis |
4 |
Hiatella
arctica |
9 |
Cytheromorpha
macchesneyi |
|
3 |
Macoma
balthica |
|||||
2 |
Portlandia
arctica |
|||||
4 |
Hiatella
arctica |
7 |
Cytheropteron
latissimum Sarsicytheridea
punctillata |
|||
5 |
Mytilus
edulis |
- |
None |
|||
2 |
Portlandia
arctica |
2 |
Cytheropteron
pseudomontrosiense |
|||
10 |
Pateoris
hauerinoides Elphidium
clavatum |
2 |
Portlandia
arctica |
2 |
Cytheropteron
pseudomontrosiense |
|
9 |
Haynesina
orbicularis Elphidium
clavatum |
7 |
Mya
truncata |
- |
None |
|
5 |
Mytilus
edulis |
|||||
3 |
Macoma
balthica |
|||||
4 |
Hiatella
arctica |
7 |
Cytheropteron
latissimum Sarsicytheridea
punctillata |
|||
8 |
Haynesina
orbicularis Elphidium
clavatum Eoeponidella
pulchella |
6 |
Macoma
calcarea |
- |
None |
|
4 |
Hiatella
arctica |
6 |
Sarsicytheridea
punctillata Heterocyprideis
sorbyana |
|||
7 |
Elphidium
clavatum Elphidium
incertum/asklundi Haynesina
orbicularis |
4 |
Hiatella
arctica |
5 |
Sarsicytheridea
punctillata Cytheropteron
nodosum Heterocyprideis
sorbyana |
|
6 |
Haynesina
orbicularis Cassidulina
reniforme Elphidium
clavatum |
4 |
Hiatella
arctica |
- |
None |
|
3 |
Macoma
balthica |
|||||
5 |
Elphidium
clavatum Cassidulina
reniforme Haynesina
orbicularis |
4 |
Hiatella
arctica |
4 |
Cytheropteron
nodosum Cytheropteron
inflatum |
|
2 |
Portlandia
arctica |
3 |
Cytheropteron
arcuatum Palmenella
limicola |
|||
2 |
Cytheropteron
pseudomontrosiense |
|||||
4 |
Cassidulina
reniforme |
2 |
Portlandia
arctica |
2 |
Cytheropteron
pseudomontrosiense |
High
(30-34Å) |
3 |
Cassidulina
reniforme Islandiella
helenae Haynesina
orbicularis |
4 |
Hiatella
arctica |
- |
None |
|
3 |
Macoma
balthica |
|||||
1 |
Balanus
hameri |
|||||
2 |
Cassidulina
reniforme |
2 |
Portlandia
arctica |
1 |
Cytheropteron
paralatissimum Cytheropteron
arcuatum Cytheropteron
pseudomontrosiense |
|
1 |
Cassidulina
reniforme Astrononion
gallowayi Islandiella
norcossi |
1 |
Balanus
hameri |
- |
None |