Artropoda - Trilobita - Ptychopariida
Ptychoparoidea - Ptychopariidae - Elrathia
Elrathia kingi
Lenian ( - 550 )
DELTA UTHA USA

Artropoda - Trilobita - Ptychopariida
Ptychoparoidea - Ptychopariidae - Elrathia
Elrathia kingi
Lenian ( - 550 )
DELTA UTHA USA

Spongiaires ? Cyathozoaire ? Archeocyatidae
Archeocyathida - Archeocyatus
Coscinocyathus ?
Cambrian moy.( - 540 )
RUSSIA ( SIBERIA )

Spongiaires ? Cyathozoaire ? Archeocyatidae
Archeocyathida - Archeocyatus
Coscinocyathus ?
Cambrian moy.( - 540 )
RUSSIA ( SIBERIA )

Arthropoda - Trilobita - Redlichiida
Paradoxidea - Pardoxidae
Acadoparadoxides sp.
Cambrian moy.( - 540 )
MAROCCO

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