Browse Items (264 total)

Taxonomy Phylum: EchinodermataClass: Crinoidea Distinctive Features StemCalyxCrownOssicles (fused) Preservation Cast (manmade)

Species Florigemma Stratigraphic Range Jurassic Taxonomy Phylum: EchinodermataClass: EchinoideaOrder: CidaroidaGenus: Cidaris Distinctive Features 'Club' shapedThorns Preservation Mineral replacement (calcite)Disarticulated from body…

Species depressus Lestre Stratigraphic Range Jurassic Taxonomy Phylum: EchinodermataClass: EchinoideaSubclass: IrregulariaOrder: HolectypoidaGenus: Holectypus Distinctive Features Bilateral symmetryFive radial ambulacraSpine attachment scars…

Species Praecursor Stratigraphic Range Cretaceous Taxonomy Phylum: EchinodermataClass: EchinoideaSubclass: IrregulariaOrder: SpatangoidaGenus: Micraster Distinctive Features Bilateral symmetryFive radial ambulacraPeristome (opening for mouth)…

Stratigraphic Range Cretaceous Taxonomy Phylum: EchinodermataClass: EchinoideaSubclass: IrregulariaOrder: EchinoneoidaGenus: Conulus Distinctive Features Bilateral symmetryFive radial ambulacraInterambulacraMigrated periproct (opening for…

Stratigraphic Range Upper Cretaceous Taxonomy Phylum: EchinodermataClass: EchinodeaSubclass: IrregulariaOrder: Holasteroida Distinctive Features Bilateral symmetryMouth and anus out of lineFive radial ambulacraInterambulacra with…

Taxonomy Phylum: EchinodermataClass: EchinoideaSubclass: Regularia Distinctive Features Pentaradial symmetryAnus and peristome lie in lineSpine attachmentsFive sets of ambulacra Preservation Cast (internal mould of an external mould) Advanced…

Stratigraphic Range Modern Taxonomy Phylum: EchinodermataClass: EchinoideaSubclass: Regularia Distinctive Features Pentaradial symmetryAnus and peristome in lineSpine attachmentsAmbulacraAttachments for the jaw apparatus visible on the inside of…

Stratigraphic Range Cambrian to Carboniferous Taxonomy Phylum: HemichordataClass: GraptolithinaOrder: Dendroidea Distinctive Features Numerous branching stipesColonialThecae Preservation Flattened Advanced notes In this specimen we cannot…

Stratigraphic Range Ordovician Taxonomy Phylum: HemichordataClass: GraptolithinaOrder: Graptoloidea Distinctive Features ThecaeStipesRhabdosomeNema Preservation FlattenedCarbon filmRed colour from iron in sediment seeping into…