1 Phylum Mollusca

7/22/2019 1 Phylum Mollusca

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PALEONTOLOGY

PHYLUMMOLLUSCACLASS BIVALVIA


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Phylum: mollusca Class: bivalvia Carolia Sp Shape of shell: equlateral Orientation of beak: orthogyral Adductor muscles:monomyarian Pallial line:---------- Type of ligament: reselium & resilifer Dentition: dysodont Shell sculpture: growth line


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Phylum: mollusca

Class: bivalvia

Ostrea Sp

Shape of shell: inequilateral & inequivalved

Orientation of beak:opisthogyral Adductor muscles:monomyarian

Pallial line:---------

Type of ligament: alivincular

Dentition:dysodont

Shell sculpture: costate


4/17


Phylum: mollusca Class: bivalvia Exogyra Sp Shape of shell: inequilateral Orientation of beak:opisthogyral Adductor muscles:monomyarian Pallial line:-------- Type of ligament: alivincular Dentition: dysodont Shell sculpture: growth line


5/17


Phylum: mollusca Class: bivalvia Subclass: abou roach Durania gaensis Sp Shape of shell:inequivalved & inequilateral Shell outline:------- Orientation of beak: ------- Adductor muscles: ----- Pallial line:--------- Type of ligament:--------

Dentition:--------- Shell sculpture: coastate


6/17


Phylum: mollusca Class : bivalvia Trigonia Sp Shape of shell: equivalved Orientation of beak: opisthogyral Adductor muscles:------- Pallial line: -------- Type of ligament: ------- Dentition: -------- Shell sculpture: concentic ridges


7/17


Phylum:mollusca

Class:bivalvia

Pholadomya Sp

Shape of shell: equivalved & inequilateral

Orientation of beak: prosogyral Adductor muscles:-------

Pallial line:-------

Type of ligament:--------

Dentition:--------

Shell sculpture: growth line


8/17


Phylum: mollusca

Class: bivalvia

Anadara Sp

Shape of shell: inequilateral

Orientation of beak:prosogyral

Adductor muscles:anisomyarian

Pallial line: integripalliate

Type of ligament: amphiditic

Dentition: taxodont Shell sculpture: costate


9/17


Phylum: mollusca

Class: bivalvia

Pecten Sp

Shape of shell: equilaterale

Orientation of beak: orthogyral Adductor muscles:monomyarian

Pallial line:--------

Type of ligament: reselium & resilifer

Dentition: dysodont



10/17


Phylum: mollusca

Class: bivalvia

Glycymeris Sp

Shape of shell:equilateral

Orientation of beak: opisogyral Adductor muscles: anisomyarian

Pallial line: integrepalliate

Type of ligament: amphidetic

Dentition: cyclodonte



11/17


Phylum: mollusca

Class: bivalvia

spondylus Sp

Shape of shell:inequilateral

Orientation of beak:opithogyral Adductor muscles:monomayrian

Pallial line:-----------

Type of ligament: reselium & resilifer

Dentition: isodont

Shell sculpture: spinose


12/17


Phylum: mollusca

Class: bivalvia

Chama Sp

Shape of shell: inequivalved & inequilateral

Orientation of beak: prosogyral Adductor muscles: isomyarian

Pallial line: integripaliate

Type of ligament: opisthodetic

Dentition: pachydont

Shell sculpture: pitted


13/17


Phylum: mollusca

Class: bivalvia

Dosinia Sp

Shape of shell:inequilateral

Orientation of beak: prosogyra Adductor muscles: isomyaria

Pallial line:sinupalliate

Type of ligament: opisthodeti

Dentition: heterodonte

Shell sculpture: growth line


14/17


Phylum: mollusca

Class: bivalvia

Pinna Sp

Shape of shell: equivalved & equilateral

Orientation of beak:------- Adductor muscles:--------

Pallial line:---------

Type of ligament:----------

Dentition:-------------

Shell sculpture: growth lines


15/17


Phylum: mollusca

Class: bivalvia

Tridocna Sp

Shape of shell: inequilaterale

Orientation of beak: prosogyral Adductor muscles:----------


Type of ligament: opisthoditic

Dentition: hetrodont

Shell sculpture: flated


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Phylum: mollusca

Class: bivalvia

Dicera Sp

Shape of shell:inequivalved

Orientation of beak:-------- Adductor muscles:-----


Type of ligament:--------

Dentition:----------

Shell sculpture:--------


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1 Phylum Mollusca