Journal
JOURNAL OF PALEONTOLOGY
Volume 85, Issue 5, Pages 882-891Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1666/10-130.1
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Funding
- National Science Foundation [DEB-0412176]
- Division Of Environmental Biology
- Direct For Biological Sciences [0814544] Funding Source: National Science Foundation
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Melittosphex burmensis (Melittosphecidae) is an important apoid fossil from middle Cretaceous (similar to 100 Ma) amber from Myanmar (Burma). Melittosphex exhibits a combination of wasp and bee features making it an important transitional form linking bees with crabronid wasps. The presence of branched hairs suggests that it was a pollen-collector and many aspects of the morphology suggest that it is more closely related to bees than to any fossil or extant group of wasps. Here we report additional morphological information on Melittosphex burmensis. This specimen remains the earliest body-fossil evidence that pollen-collecting Apoidea (bees) were present approximately 20 million years after the origin of the eudicots (similar to 120 Ma), the major angiosperm lineage with extensive reliance on bee pollination.
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