page_title: List of the Paleozoic life of Nevada
section_title: S
hierarchical_section_title: List of the Paleozoic life of Nevada / S
caption_attribution_description: English: Spirorbis spirorbis, on kelp, Mull, Scotland
context_page_description: This list of the Paleozoic life of Nevada contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Nevada and are between 541 and 252.17 million years of age.
context_section_description: †Sabellidites
  †Sabellidites canadiensis
  †Saffordophyllum
  †Sagittodontus
  †Sagittodontus robustus – tentative report
  †Sallya
  †Salopina
   †Salterella
  †Sandolasma
  †Sandolasma buttense – type locality for species
  †Sandolasma elegans
  †Sandolasma hillae – type locality for species
  †Sandolasma perplexa – type locality for species
  †Sanguinolites
  †Sanguinolites salteri
  †Sansabella – tentative report
  †Scabbardella
  †Scabbardella altipes
  †Scandodus
  †Scandodus unicostatus
  †Scaphorthis
  †Sceptropora
  †Sceptropora faculum
  †Schedexocrinus
  †Schistometopus
  †Schizambon
  †Schizodus
  †Schizodus curtiformis
  †Schizodus semistriatus – or unidentified comparable form
  †Schizophoria
  †Schizophoria depressa
  †Schizophoria fascicostella – or unidentified comparable form
  †Schizophoria mcfarlanei
  †Schizophoria nevadaensis
  †Schizophoria parafragilis – type locality for species
  †Schizophoria simpsoni
  †Schizophoria texana
  †Schizoporia
  †Schizoporia resupinoides
  †Schizoporia texana
  †Schmidtella
  †Schmidtites – tentative report
  †Schubertella
  †Schubertella kingi
  †Schuchertella
  †Schwagerina
  †Schwagerina jeffordsi – type locality for species
  †Schwagerina munda – type locality for species
  †Schwagerina rotunda
  †Scinocephalus
  †Scinocephalus solitecti – or unidentified related form
  †Sciophyllum
  †Scolopodus
  †Scolopodus insculptus
  †Scotiaecystis – tentative report
  †Scotoharpes
  †Secuicollacta
  †Secuicollacta stelligera – type locality for species
  †Selenimyalina
  †Semizona
  †Semizona glindmeyeri
  †Septabrunsiina
  †Septaglomospiranella
  †Septatrypa
  †Septimyalina
  †Septimyalina burmai
  †Septopora
  †Septopora alternata
  †Septopora bilateralis
  †Serpulospira
  †Serpulospira annulatus – or unidentified comparable form
  †Serpulospira swickae
  †Severella
  †Shamovella
  †Shastalasma
  †Shastalasma woodi – type locality for species
  †Shoshonorthis
  †Shoshonorthis swanensis – or unidentified comparable form
  †Shumardia
  †Shumardia exopthalmus
  †Siderocyathus – type locality for genus
  †Siderocyathus duncanae – type locality for species
  †Sieberella
  †Sieberella problematica – or unidentified comparable form
  †Sieberella pyriforma – type locality for species
  †Sigmocheilus
  †Sigmocheilus flabellifer
  †Sigmocheilus grata
  †Sigmocheilus notha
  †Sigmocheilus pogonipensis
  †Simulolenus
  †Simulolenus granulatus
  †Simulolenus quadrisulcatus
  †Sinotubuites
  †Sinotubuites cienegensis
  †Sinuites
   †Siphonodendron
  †Siphonodendron sinousum – or unidentified comparable form
  †Siphonodendron sinuosum – or unidentified comparable form
  †Siphonodendron whitneyi – or unidentified comparable form
  †Siphonodendrum
  †Siphonodendrum sinuosum – or unidentified comparable form
  †Sivorthis
  †Sivorthis eucharis
  †Sivorthis occidentalis
  †Skenidioides
  †Skenidioides oklahomensis
  †Skenidium
  †Skenidium asellatum – or unidentified comparable form
  †Skippella
  †Soleniscus
  †Sowerbyella
  †Sowerbyella merriami
  †Sowerbyella perplexa – or unidentified comparable form
  †Sowerbyites
  †Spathognathodus
  †Spathognathodus minutus – or unidentified comparable form
  †Spencia
  †Spencia quadrata – type locality for species
  †Sphaerirhynchia
   †Sphaerocodium
  †Sphaerocoryphe
  †Sphenosteges
  †Sphenosteges hispidus
  †Sphenothallus
  †Sphenotreta
  †Sphenotreta sulcata – or unidentified comparable form
  †Spinatrypa
  †Spinatrypa aspera – or unidentified comparable form
  †Spinatrypa soetenica – or unidentified comparable form
  †Spinatrypina
  †Spinatrypina angusticostata
  †Spinatrypina comitata – or unidentified comparable form
  †Spinatrypina lamellosa
  †Spinatrypina recula – type locality for species
  †Spinella
  †Spinella talenti – type locality for species
  †Spinoplasia
  †Spinoplasia roeni – type locality for species
  †Spinulicosta
  †Spinulicosta muirwoodi
   †Spirifer
  †Spirifer arkansanus – or unidentified comparable form
  †Spirifer centronatus
  †Spirifer haydenianus – or unidentified related form
  †Spirifer occidus
  †Spirifer opimus
  †Spirifer pellaensis – tentative report
  †Spirifer rockymontanus
  †Spiriferella
  †Spiriferella scobina – type locality for species
  †Spiriferellina
  †Spiriferellina campestris
  †Spiriferellina ceres
  †Spiriferellina lata
  †Spiriferina
  †Spirigerina
  †Spirigerina supramarginalis
  †Spirinella
  †Spirinella
caption: Modern shells of the polychaete worm Spirorbis
exif: {"Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop Elements 2.0", "Image DateTime": "2006:01:24 00:05:11", "Image ExifOffset": "164", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "302", "Thumbnail JPEGInterchangeFormatLength": "7133", "EXIF ColorSpace": "Uncalibrated", "EXIF ExifImageWidth": "400", "EXIF ExifImageLength": "661"}