Fossil Evidence and the Origin of Bats
dc.contributor.author | Gunnell, Gregg F. | en_US |
dc.contributor.author | Simmons, Nancy B. | en_US |
dc.date.accessioned | 2006-09-11T15:30:40Z | |
dc.date.available | 2006-09-11T15:30:40Z | |
dc.date.issued | 2005-06 | en_US |
dc.identifier.citation | Gunnell, Gregg F.; Simmons, Nancy B.; (2005). "Fossil Evidence and the Origin of Bats." Journal of Mammalian Evolution 12 (1-2): 209-246. <http://hdl.handle.net/2027.42/44972> | en_US |
dc.identifier.issn | 1064-7554 | en_US |
dc.identifier.issn | 1573-7055 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/44972 | |
dc.description.abstract | The phylogenetic and geographic origins of bats (Chiroptera) remain unknown. The earliest confirmed records of bats date from the early Eocene (approximately 51 Ma) in North America with other early Eocene bat taxa also being represented from Europe, Africa, and Australia. Where known, skeletons of these early taxa indicate that many of the anatomical specializations characteristic of bats had already been achieved by the early Eocene, including forelimb and manus elongation in conjunction with structural changes in the pectoral skeleton, hind limb reorientation, and the presence of rudimentary echolocating abilities. By the middle Eocene, the diversification of bats was well underway with many modern families being represented among fossil forms. A new phylogenetic analysis indicates that several early fossil bats are consecutive sister taxa to the extant crown group (including megabats), and suggests a single origin for the order, at least by the late Paleocene. Although morphological studies have long placed bats in the Grandorder Archonta, (along with primates dermopterans, and tree shrews), recent molecular studies have refuted this hypothesis, instead strongly supporting placement of bats in Laurasiatheria. Primitively, proto-bats were likely insectivorous, under-branch hangers and elementary gliders that exploited terminal branch habitats. Recent work has indicated that a number of other mammalian groups began to exploit similar arboreal, terminal branch habitats in the Paleocene, including multituberculates, eulipotyphlans, dermopterans, and plesiadapiforms. This may offer an ecological explanation for morphological convergences that led to the erroneous inclusion of bats within Archonta: ancestral archontan groups as well as proto-bats apparently were exploiting similar arboreal habitats, which may have led to concurrent development of homoplasic morphological attributes. | en_US |
dc.format.extent | 825395 bytes | |
dc.format.extent | 3115 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Kluwer Academic Publishers-Plenum Publishers; Springer Science + Business Media, Inc. | en_US |
dc.subject.other | Lipotyphla | en_US |
dc.subject.other | Phylogeny | en_US |
dc.subject.other | Evolutionary Biology | en_US |
dc.subject.other | Life Sciences | en_US |
dc.subject.other | Human Genetics | en_US |
dc.subject.other | Bats | en_US |
dc.subject.other | Origins | en_US |
dc.subject.other | Chiroptera | en_US |
dc.subject.other | Archonta | en_US |
dc.subject.other | Paleocene | en_US |
dc.title | Fossil Evidence and the Origin of Bats | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Ecology and Evolutionary Biology | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Museum of Paleontology, University of Michigan, 1109 Geddes Avenue, Ann Arbor, Michigan, 48109-1079, USA | en_US |
dc.contributor.affiliationother | Division of Vertebrate Zoology, Department of Mammalogy, American Museum of Natural History, New York, New York, USA | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/44972/1/10914_2005_Article_6945.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1007/s10914-005-6945-2 | en_US |
dc.identifier.source | Journal of Mammalian Evolution | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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