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Gar
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===Pectoral girdle=== [[File:Lepisosteidae Pectoral Girdle.jpg|thumb|Medial and lateral view of Lepisosteidae pectoral girdle]] The gar has paired pectoral fins and pelvic fins, as well as an anal fin, a caudal fin, and a dorsal fin.<ref>{{cite journal|last1=Becker|first1=George|title=Fishes of Wisconsin|date=1983|pages=239–248|url=http://images.library.wisc.edu/EcoNatRes/EFacs/FishesWI/reference/econatres.fisheswi.i0019.pdf}}</ref> The bone structures within the fins are important to study as they can show [[Homology (biology)|homology]] throughout the fossil record. Specifically, the pelvic girdle resembles that of other [[actinopterygians]] while still having some of its own characteristics. Gars have a postcleithrum—which is a bone that is lateral to the scapula, but do not have postpectorals. Proximally to the postcleithrum, the supracleithrum is important as it plays a critical role in opening the gar's jaws. This structure has a unique internal coracoid lamina only present in the gar species. Near the supracleithrum is the posttemporal bone, which is significantly smaller than other actinopterygians. Gars also have no clavicle bone, although elongated plates have been observed within the area.<ref>{{cite journal|last1=Malcolm|first1=Jollie|title=Development of Cranial and Pectoral Girdle Bones of Lepisosteus with a Note on Scales|jstor=1445204|journal=Copeia|volume=1984|issue=2|pages=476–502|publisher=American Society of Ichthyologists and Herpetologists (ASIH)|year=1984|doi=10.2307/1445204}}</ref>
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