Browse Items (264 total)

Species Littorina muricata Stratigraphic Range Jurassic Taxonomy Phylum: MolluscaClass: GastropodaGenus: Littorina Distinctive Features Coiled shell (helical)SpireBody whorl Preservation External mould and external casts

Species Goniaites Stratigraphic Range Devonian to Permian Taxonomy Phylum: MolluscaClass: CephalopodaSubclass: AmmonoideaOrder: Goniatitida Distinctive Features Planispiral shellGoniatitic suture linesInvolute Preservation Internal mould

Species Ceratites Stratigraphic Range Triassic Taxonomy Phylum: MolluscaClass: CephalopodaSubclass: AmmonoideaOrder: Ceratitida Distinctive Features PlanispiralApertureBody chamberCeratitic suture linesEvolute Preservation Internal…

Species Dactylioceras commune Stratigraphic Range Jurassic Taxonomy Phylum: MolluscaClass: CephalopodaSubclass: AmmonoideaOrder: Ammonitida Distinctive Features RibsImprint of inner whorls visibleCurved shape (part of…

Species Hildoceras bifrons Stratigraphic Range Jurassic Taxonomy Phylum: MolluscaClass: CephalopodaSubclass: AmmonoideaOrder: Ammonitida Distinctive Features PlanispiralEvoluteRibs Preservation Mineral replacement of shell (aragonite to…

Species Parkinsonia parkinsonia Stratigraphic Range Jurassic Taxonomy Phylum: MolluscaClass: CephalopodaSubclass: AmmonoideaOrder: Ammonitida Distinctive Features PlanispiralEvoluteRibsAmmonitic suture lines Preservation Calcite has replaced…

Species Amoeboceras alternans Stratigraphic Range Jurassic Taxonomy Phylum: MolluscaClass: CephalopodaSubclass: AmmonoideaOrder: Ammonitida Distinctive Features PlanispiralAmmonitic suture lines visible on some mouldsRibs Preservation Most…

Species Deshayesites Stratigraphic Range Cretaceous Taxonomy Phylum: MolluscaClass: CephalopodaSubclass: AmmonoideaOrder: Ammonitida Distinctive Features PlanispiralAmmonitic suture patternEvoluteRibsAperture Preservation Internal mould,…

Species Anahoplites splendens Stratigraphic Range Cretaceous Taxonomy Phylum: MolluscaClass: CephalopodaSubclass: AmmonoideaOrder: Ammonitida Distinctive Features PlanispiralInvoluteAmmonitic suture patternRibs Preservation Internal mould,…

Species Scaphites Stratigraphic Range Cretaceous Taxonomy Phylum: MolluscaClass: CephalopodaSubclass: AmmonoideaOrder: Ammonitida Distinctive Features 'g' shaped coiled shellRibsInvoluteAmmonitic suture lines Preservation Internal…