Journal
CURRENT BIOLOGY
Volume 24, Issue 7, Pages 801-806Publisher
CELL PRESS
DOI: 10.1016/j.cub.2014.02.040
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Funding
- Leverhulme Trust [RP14G0168]
- Japan Society for the Promotion of Science KAKENHI [21740370]
- Yale Peabody Museum of Natural History
- Grants-in-Aid for Scientific Research [24540501] Funding Source: KAKEN
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Ostracod crustaceans are the most abundant fossil arthropods and are characterized by a long stratigraphic range. However, their soft parts are very rarely preserved, and the presence of ostracods in rocks older than the Silurian period [1-5] was hitherto based on the occurrence of their supposed shells. Pyritized ostracods that preserve limbs and in situ embryos, including an egg within an ovary and possible hatched individuals, are here described from rocks of the Upper Ordovician Katian Stage Lorraine Group of New York State, including examples from the famous Beecher's Trilobite Bed [6, 7]. This discovery extends our knowledge of the paleobiology of ostracods by some 25 million years and provides the first unequivocal demonstration of ostracods in the Ordovician period, including the oldest known myodocope, Luprisca incuba gen. et sp. nov. It also provides conclusive evidence of a developmental brood-care strategy conserved within Ostracoda for at least 450 million years.
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