Multiple lineages of lice pass through the K-Pg boundary

Smith, V.S., Ford, T., Johnson, K.P., Johnson, P.C.D. , Yoshizawa, K. and Light, J.E. (2011) Multiple lineages of lice pass through the K-Pg boundary. Biology Letters, 7(5), pp. 782-785. (doi: 10.1098/rsbl.2011.0105)

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For modern lineages of birds and mammals, few fossils have been found that predate the Cretaceous–Palaeogene (K–Pg) boundary. However, molecular studies using fossil calibrations have shown that many of these lineages existed at that time. Both birds and mammals are parasitized by obligate ectoparasitic lice (Insecta: Phthiraptera), which have shared a long coevolutionary history with their hosts. Evaluating whether many lineages of lice passed through the K–Pg boundary would provide insight into the radiation of their hosts. Using molecular dating techniques, we demonstrate that the major louse suborders began to radiate before the K–Pg boundary. These data lend support to a Cretaceous diversification of many modern bird and mammal lineages.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Johnson, Dr Paul
Authors: Smith, V.S., Ford, T., Johnson, K.P., Johnson, P.C.D., Yoshizawa, K., and Light, J.E.
Subjects:Q Science > QH Natural history > QH301 Biology
College/School:College of Medical Veterinary and Life Sciences
Journal Name:Biology Letters
Publisher:The Royal Society Publishing
ISSN (Online):1744-957X

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