Browse Items (264 total)

Stratigraphic Range Jurassic Taxonomy Phylum: BrachiopodaClass: RhynchonellataOrder: Terebratulida Distinctive Features Bilateral symmetryTwo articulated valvesCommissureGrowth linesPedicle Preservation Mineral replacement of shell

Species Spirifer verneuli Stratigraphic Range Ordovician to Permian Taxonomy Phylum: BrachiopodaClass: RhynchonellataOrder: Spiriferida Distinctive Features Bilateral symmetryTwo articulated valvesCommissureRibsPedicle Preservation Internal…

Stratigraphic Range Ordovician to Permian Taxonomy Phylum: BrachiopodaClass: StrophomenataOrder: Strophomenida Distinctive Features Bilateral symmetryRibs Preservation External moulds and internal moulds

Stratigraphic Range Silurian to Devonian Taxonomy Phylum: BrachiopodaClass: RhynchonellataOrder: SpiriferidaGenus: Atrypa Distinctive Features Bilateral symmetryTwo valvesCommissureRadial ribsGrowth lines Preservation Mineral replacement of…

Stratigraphic Range Ordovician Taxonomy Phylum: BrachiopodaClass: RhynchonellataOrder: OrthidaGenus: Orthis Distinctive Features Bilateral symmetryRadiating ribs Preservation External mould

Stratigraphic Range Cambrian to Ordovician Taxonomy Phylum: BrachiopodaClass: LingulataOrder: LingulidaGenus: Lingulella Distinctive Features Bilateral symmetryGrowth lines Preservation Organic film Advanced notes Lingulella had a phosphate…

Taxonomy Phylum: Brachiopoda Diagnostic features Two valves (brachial and pedicle) Bilateral symmetry Growth lines Adductor and ductor muscle scars Pedicle Commissure Gape Teeth and socket (articulates; no teeth or socket in…

Taxonomy Phylum: MolluscaClass: Bivalvia Distinctive Features Ribs Preservation Manmade external mould Advanced notes Although this particular specimen is a manmade mould, internal and external moulds are common ways in which bivalves are…

Stratigraphic Range Cretaceous to recent Taxonomy Phylum: MolluscaClass: BivalviaOrder: ArcoidaFamily: Glycymerididae Distinctive Features Growth linesAdductor muscle scarsHingePalial line Preservation Original shell

Species Unio littoralis Taxonomy Phylum: MolluscaClass: BivalviaOrder: UnionataFamily: Unionidae Distinctive Features UmboTwo valves showing dorso-ventral symmetryGrowth linesAdductor muscle scarPalial lineDentition Preservation Original…