Papers on Fossil VertebratesColin Patterson, Peter Humphry Greenwood |
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Page 170
... oral canal and one posteromedial , MdMcl , developed in relation to the mandibular canal and its medial commissural branch . These bones , which occupy the main part of the ventral side of the symphysial portion are separated by a ...
... oral canal and one posteromedial , MdMcl , developed in relation to the mandibular canal and its medial commissural branch . These bones , which occupy the main part of the ventral side of the symphysial portion are separated by a ...
Page 171
... bone in Dipterus follows another sensory canal bone . This bone , MdOc3 , which was overlooked by Watson & Gill ... oral canal and accordingly the bone belongs to the oral series of canal bones . As indicated in Text - fig . 7A this ...
... bone in Dipterus follows another sensory canal bone . This bone , MdOc3 , which was overlooked by Watson & Gill ... oral canal and accordingly the bone belongs to the oral series of canal bones . As indicated in Text - fig . 7A this ...
Page 172
... bone on medial side of meckelian bone ; MdMcla , MdMc1b , independent parts of anterior mandibular canal bone ; Md0c1 , anterior oral canal bone ; MdOc2Mc2 , complex bone including middle oral and posterior mandibular canal bones ; MdOc3 , ...
... bone on medial side of meckelian bone ; MdMcla , MdMc1b , independent parts of anterior mandibular canal bone ; Md0c1 , anterior oral canal bone ; MdOc2Mc2 , complex bone including middle oral and posterior mandibular canal bones ; MdOc3 , ...
Contents
FOREWORD | 3 |
L The Lower Devonian Knoydart faunas | 31 |
LEHMAN J P Quelques remarques concernant Drepanaspis gemuendenensis | 39 |
Copyright | |
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Common terms and phrases
adductor anterior appear arches beds body branchial canal bones cartilage caudal clearly close comparable completely condition corresponding covered dermal bones described Devonian dipnoans dorsal early elements elongated evidence field fishes Formation forms fossil fragments genus Geol groove Gross groups head Heintz heterostracans holotype Jarvik known lamina lateral length lower lower jaw mandibular margin material meckelian median Middle Museum Natural Neoceratodus neural noted Old Red opening oral orbital origin Ørvig ossification pattern pectoral plate pointed portion position posterior posteriorly preoperculum present preserved probably Pteraspis referred region represent Rhamphodopsis ridges rostrum Sandstone scales seems seen sensory canal separate shield shown side similar skull species specimen spine stage Stensiö structure suggested surface symphysial teeth teleosts tesserae Text-fig tissue tooth tubercles Upper ventral vertebrates vertical Watson White Zool