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Browse Items (264 total)
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TF0104 Exogyra virgula
Species
virgula
Stratigraphic Range
Jurassic
Taxonomy
Phylum: MolluscaClass: BivalviaOrder: OstreoidaFamily: Gryphaeidae
Distinctive Features
Growth linesRibsUmboTwo valves
Preservation
Mineral replacement of shell
Advanced notes
A…
TF0105 Gryphaea dilatata
Species
Gryphaea dilatata
Stratigraphic Range
Jurassic
Taxonomy
Phylum: MolluscaClass: BivalviaOrder: OstreoidaFamily: Gryphaeidae
Distinctive Features
UmboGrowth linesTwo articulated valves
Preservation
Mineral replacement of…
TF0106 Gervillella
Stratigraphic Range
Triassic to Cretaceous
Taxonomy
Phylum: MolluscaClass: BivalviaOrder: OstreoidaFamily: BakevelliidaeGenus: Gervillella
Distinctive Features
UmboGrowth linesTwo articulated valves
Preservation
Mineral replacement of…
TF0107 Spondylus
Stratigraphic Range
Triassic to present
Taxonomy
Phylum: MolluscaClass: BivalviaOrder: PectinoidaFamily: SpondylidaeGenus: Spondylus
Distinctive Features
UmboRibsDorso-ventral symmetryTwo valves
Preservation
Mineral replacement of…
TF0108 Inoceramus
Stratigraphic Range
Jurassic to Cretaceous
Taxonomy
Phylum: MolluscaClass: BivalviaOrder: PraecardioidaFamily: InoceramidaeGenus: Inoceramus
Distinctive Features
RibsUmboTwo valvesNear dorso-ventral symmetry
Preservation
Internal mould
TF0109 Crassatella
Stratigraphic Range
Eocene
Taxonomy
Phylum: MolluscaClass: BivalviaOrder: CarditoidaFamily: CrassatellidaeGenus: Crassatella
Distinctive Features
RibsGrowth linesUmboDentitionAdductor muscle scarsPalial line
Preservation
Original shell…
TF0110 Lithophaga inclusa
Species
Lithophaga inclusa
Stratigraphic Range
JurassicLithophaga: Triassic to recent
Taxonomy
Phylum: MolluscaClass: BivalviaOrder: MytilidaFamily: Mytilidae
Distinctive Features
Dorsoventral symmetryTwo valvesGrowth…
TF0111 Opis virdunensis
Species
Opis virdunensis Buvignier
Stratigraphic Range
Jurassic
Taxonomy
Phylum: MolluscaClass: BivalviaOrder: CarditidaFamily: Astartidae
Distinctive Features
Two valvesHingeAdductor muscle scarsDorso-ventral symmetry
Preservation
Internal…
TF0112 Dimyodon nilssoni
Species
Dimyodon nilssoni
Stratigraphic Range
Cretaceous
Taxonomy
Phylum: MolluscaClass: BivalviaOrder: Ostreoida
Preservation
Cemented onto fish vertebra
Advanced notes
Identification of these as bivalves took a very long time…
TF0113 Pecten
Stratigraphic Range
Ordovician to recent
Taxonomy
Phylum: MolluscaClass: BivalviaOrder: OstreoidaFamily: Pectinidae
Distinctive Features
RibsGrowth linesCharacteristic 'fan' shape (Pecten only)
Preservation
Original shell material
Advanced…