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Geraldinella is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the late Atdabanian stage, which lasted from 530 to 524 million years ago during the early part of the Cambrian Period.

References

1. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 363: 5–560. ISBN 978-0-87710-450-6.
2. Fritz, W. H. (1993). "New Lower Cambrian olenelloid trilobite genera Cirquella and Geraldinella from southwestern Canada". Journal of Paleontology. 67 (5): 856–868. doi:10.1017/S0022336000037112.

• Cambrian trilobites
• Fossils of the United States
• Fossil taxa described in 1993