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Early Cambrian animals (Time series) - Wildlife in the Fossil sites

Classified animal and plant picture guide. Clicking the Organism name shows the images, and pointing the Organism name shows the tooltip with three links at the left-top corner.
The early Cambrian in Paleozoic spanned from 542 to 513 millon years ago. The explanation in brackets is the ages they lived in extinct species. Note that Mya is million years ago. For example, "48.6~40.4 Mya" shows a range between 48.6 and 40.4 million years ago. The time range is shown in the Geological Time Table. The followings are a part of the Evolutionary Tree.
Combrian, Early Cambrian, Middle Combrian, Late Combrian
The right map is the continents at Late Combrian provided by C. R. Scotese PALEOMAP Project.
542 Mya
542~516 MyaSpongeChoiaella
Penis wormsSicyophorus, Acosmia, Palaeopriapulites, Corynetis  
LobopodiaLuolishania  , Paucipodia  , Onychodictyon  , Cardiodictyon  
First lamp shell fossil
Lamp shellLongtancunella
CnidarianXianguangia  
HhydroidRotadiscus  
ArachnomorphaParapaleomerus  , Skioldia  , Haikoucaris  , Combinivalvula  , Kunmingella  , Fortiforceps  
First horseshoe crab fossil
Horseshoe
crab
Paleomerus
542~513 MyaUnknown animalTommotia  
Lamp shellHeliomedusa
ChordataHaikouella  
MolluscHalkieria  
542~510 MyaSpongeArchiasterella
542~501 MyaGreen algaeYuknessia  
SpongeHazelia
Lamp shellLapworthella  
542~490 MyaSpongeChancelloria
542~488.3 MyaLamp shellAcrothyra
542~479 MyaGastropodaLatouchella  , Pelagiella
542~476.8 MyaLamp shellApheoorthis
542~449 MyaMonoplacophoraScenella
542~421.3 MyaMonoplacophoraTryblidium   (Great Dying①)
542~409 MyaLamp shellLingulella   (Great Dying①)
542~391.9 MyaSpongeChoia+carteri   (Great Dying①)
542~388.1 MyaHemichordataAcanthograptus   (Great Dying①)
542~345 MyaFirst jellyfish fossil
JellyfishSphenothallus   (Great Dying①②)
535 Mya
535~520 MyaFirst jawless fish fossil
Jawless fishHaikouichthys   (Earliest jawless fish)
530 Mya
530~520 MyaLobopodiaXenusion
530~516 MyaRround wormCricocosmia  , Maotianshania  
ArachnomorphaKerygmachela  
530~513 MyaSpongeEthmophyllum
Lamp shellTommotia  
First trilobite fossil
TrilobiteBuenellus, Nevadella  , Protypus, Nevadia  , Bonniopsis
530~501 MyaUnknown animalWiwaxia  
SpongeLeptomitus
LobopodiaMicrodictyon  
MolluscHaplophrentis  
GastropodaYochelcionella  
AnomalocarididAnomalocaris   (60cm)
ArachnomorphaIsoxys  
TrilobiteRedlichia  , Paradoxides  , Kooteniella
530~498.5 MyaLamp shellMicromitra  
530~490 MyaEocrinoideaEocystites
TrilobiteOlenoides  , Peronopsis  , Kootenia  , Albertella  
530~466 MyaTrilobiteAgnostus  
530~449 MyaLamp shellPaterina
530~253.8 MyaHyolithaHyoliths   (Great Dying①②), Hyolithes   (Great Dying①②)
520 Mya
520~516 MyaUnknown animalFacivermis  
Penis wormsParaselkirkia
Velvet wormDiania cactiformis   (Walking cactus)
Ringed wormVetustovermis  
VetulicoliaDidazoon  , Xidazoon  , Banffia  
HemichordataYunnanozoon  
AnomalocarididAmplectobelua  , Parapeytoia  
ArachnomorphaKuamaia  , Acanthomeridion  , Jianfengia  , Fuxianhuia  , Chengjiangocaris  
TrilobiteLiwia, Strettonia
CrustaceanUrokodia  
Jawless fishMyllokunmingia   (Earliest jawless fish)
520~513 MyaLamp shellObolella
VetulicoliaVetulicola  
TrilobiteFordaspis
520~501 MyaUnknown animalAmiskwia  , Dinomischus  , Eldonia  , Branchiocaris  
LobopodiaHallucigenia  
JellyfishCambrorhytium
ArachnomorphaLeanchoilia  
TrilobiteNaraoia  
CrustaceanWaptia  , Canadaspis  , Odaraia  
520~490 MyaLamp shellNisusia
TrilobiteDorypyge  
516 Mya
516~513 MyaEdrioasteroidCamptostroma  
ArachnomorphaPanlongia  
TrilobiteEkwipagetia, Atdabanella, Bonnaria, Bonniella
516~510 MyaLamp shellKutorgina
516~501 MyaPenis wormsSelkirkia
EocrinoideaGogia  
TrilobiteSidneyia  , Calodiscus
CrustaceanTuzoia  
516~488.3 MyaTrilobiteOgygopsis  , Alokistocarella
516~299 MyaSea budLepidocystis   (Great Dying①②)