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Furcalithus is an
extinct genus from a well-known
class of
fossil marine arthropods, the trilobites. It
lived during the
early part of the
Arenig stage...
- Deanaspis, Declivolithus, Decordinaspis, Eirelithus, Famatinolithus,
Furcalithus, Guandacolithus, Gymnostomix, Hanchungolithus, Huenickenolithus, Incaia...
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Declivolithus Decordinaspis Eirelithus Famatinolithus Fantasticolithus Furcalithus Guandacolithus Gymnostomix Hanchungolithus Hunickenolithus Incaia Jianxilithus...
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Fuchouia (=Parafuchouia; =Pseudofuchouia)
Fuminaspis Fuquania Furacopyge Furcalithus Furia Fuscinipyge Fuyunia Fuzhouwania Gabriceraurus Gabriellus Galahetes...
- [dubious – discuss]
Bvalbardites Circulocrania Endymionia Etheridgaspis Furcalithus Gymnostomix Lacorsalina Leioshumardia Lordshillia Nambeetella Novakella...