Taxa beginning with R
125 names, each with a page of its own for what the Paleobiology Database records about it. The list is what this site has looked up and cached, not everything the fossil record holds.
- Radiolites
- Radiolitidae
- Radiomura cautica
- Radulopecten
- Radulopecten fibrosus
- Rafinesquina
- Rafinesquina alternata
- Rafinesquina deltoidea
- Rafinesquina trentonensis
- Ramulocrinus
- Rana
- Rana temporaria
- Rangifer tarandus
- Ranorthis
- Raphistoma
- Raphistoma stamineum
- Raphitoma
- Rarenodia planulata
- Rastellum
- Rastrites
- Rattus
- Rattus exulans
- Raymondaspis
- Rectifenestella retiformis
- Rectifenestella tenax
- Rectograptus amplexicaulis
- Redlichia
- Redonia
- Reduncini
- Remopleurides
- Reptilia
- Resserella
- Resserella canalis
- Resserella elegantula
- Reticulariina
- Reticulariina spinosa
- Reticulariopsis
- Reticulatia
- Reticulatia huecoensis
- Retiolites geinitzianus
- Retiophyllia
- Retiophyllia clathrata
- Retispira decussatus
- Retispira leda
- Retrorsirostra carleyi
- Retusa
- Retusa (Cylichnina)
- Retusa galba
- Retusa jacksonensis
- Retziella
- Reussirella
- Rexroadus kentuckyensis
- Reynesoceras
- Rhabdomeson
- Rhacophyllites debilis
- Rhadinichthys
- Rhaetavicula contorta
- Rhaetina gregaria
- Rhaetina pyriformis
- Rhamnaria tenuispinosa
- Rhaptagnostus cyclopygeformis
- Rhegmaphyllum
- Rhinidictya
- Rhinobatos
- Rhinocerotidae
- Rhinoclavis (Ochetoclava)
- Rhinocolobus turkanaensis
- Rhinoptera
- Rhipidomella
- Rhipidomella carbonaria
- Rhipidomella hessensis
- Rhipidomella michelini
- Rhipidomella missouriensis
- Rhipidomella vanuxemi
- Rhipidothyris
- Rhizophyllum
- Rhizoprionodon
- Rhombodus binkhorsti
- Rhombopora
- Rhombopora lepidodendroides
- Rhynchonella
- Rhynchonellida
- Rhynchonellidae
- Rhynchonelloidella
- Rhynchopora
- Rhynchopora hebetata
- Rhynchosauroides
- Rhynchospirina
- Rhynchostreon suborbiculatum
- Rhynchotrema
- Rhynchotrema dentatum
- Rhynchotrema increbescens
- Rhynchotreta
- Rhynchotreta cuneata
- Rhyssochonetes
- Richardoestesia
- Richardoestesia gilmorei
- Richardoestesia isosceles
- Richardsonoceras
- Richthofenia lawrenciana
- Richthofenioidea
- Rimella
- Rimella supraplicata
- Ringicula
- Ringicula (Ringicula) pulchella
- Ringicula buccinea
- Ringicula mississippiensis
- Ringicula trapaquara
- Ripidiorhynchus
- Rissoa
- Rissoina
- Rodentia
- Rollieria
- Romaniceras (Romaniceras) mexicanum
- Rostricellula
- Rostricellula plena
- Rotiphyllum
- Rotularia
- Rotundocyathus
- Roxania
- Rudirhynchia rudis
- Rugitela
- Rugosa
- Rugosochonetes
- Ruminantia