Results 171 to 180 of about 2,670 (209)
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Cardiovascular dynamics in the lungfishes
Zeitschrift für vergleichende Physiologie, 19681. Cardiovascular dynamics and the functional status of a double circulation have been studied in representatives of the three genera of lungfishes; Neoceratodus, Lepidosiren, and Protopterus. 2. The experimental approach consisted in continuous recording of heart rate, blood pressures and blood velocity from appropriate blood vessels in
Kjell Johansen +2 more
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2016
The Fossil Record of Lungfishes, Jennifer A. Clack, L. Sharp, John A. Long, and Esther Phylogeny of Lungfishes, Zerina Johanson and Per E. Ahlberg The General Natural History of the Australian Lungfish: Neoceratodus forsteri (Krefft, 1870), Peter K. Kind The General Natural History of the African Lungfishes, Chrisestom M. Mlewa, John M.
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The Fossil Record of Lungfishes, Jennifer A. Clack, L. Sharp, John A. Long, and Esther Phylogeny of Lungfishes, Zerina Johanson and Per E. Ahlberg The General Natural History of the Australian Lungfish: Neoceratodus forsteri (Krefft, 1870), Peter K. Kind The General Natural History of the African Lungfishes, Chrisestom M. Mlewa, John M.
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Lungfish Hearing:Implications for the evolution of the tetrapod middle ear [PDF]
, 2015 Recent research has shown that tympanic middle earsevolved independently in the major vertebrate groups andrepresent independent experiments in terrestrial hearing.Furthermore, the tympanic ear emerged quite late – ap-proximately 120 mya after the origin of the tetrapods andapproximately 70 my after the first truly terrestrial tetrapodsemerged.
Christensen, Christian Bech +2 more
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Journal of Morphology, 1986
Stratigraphical and paleoecological evidence indicates that lungfishes evolved in shallow marine conditions. Devonian genera had large gill chambers, and the details of bony supports of the gill arches of the Late Devonian Griphognathus whitei demonstrate that the arches were all functional.
K. S. W. Campbell, R. E. Barwick
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Stratigraphical and paleoecological evidence indicates that lungfishes evolved in shallow marine conditions. Devonian genera had large gill chambers, and the details of bony supports of the gill arches of the Late Devonian Griphognathus whitei demonstrate that the arches were all functional.
K. S. W. Campbell, R. E. Barwick
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2011
All three extant genera of lungfish, Australian, African and South American, appear to possess unremarkable, even ‘degenerate eyes’ when viewed externally. The eyes of the Australian lungfish, Neoceratodus forsteri, are slightly larger than those of the other species (seven African species in the genus Protopterus and the single South American species ...
Marshall, Justin +3 more
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All three extant genera of lungfish, Australian, African and South American, appear to possess unremarkable, even ‘degenerate eyes’ when viewed externally. The eyes of the Australian lungfish, Neoceratodus forsteri, are slightly larger than those of the other species (seven African species in the genus Protopterus and the single South American species ...
Marshall, Justin +3 more
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The scales of modern lungfish.
Proceedings of the Zoological Society of London, 1955SUMMARY A description is given of the scales of Epiceratodus, Protopterus and Lepidosiren, and the associated soft tissues. In Epiceratodus the scale still shows considerable differentiation, and its parts can be related in some degree to those of the ancestral cosmoid scale.
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The inner ear of the lungfish Protopterus
Journal of Comparative Neurology, 2004AbstractThe sensory end organs of the inner ear of the lungfish, Protopterus, were examined using scanning and transmission electron microscopy. The utricle has a structure and hair cell orientation pattern that are typical for vertebrates, although the hair cells are unusually large.
Platt, C. +2 more
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On the tubuli in Devonian Lungfishes
Alcheringa: An Australasian Journal of Palaeontology, 1989Transverse sections of Chirodipterus australis and Griphognathus whitei are used to demonstrate the histological structures of the rostral and symphysial tubuli in Devonian lungfish. The walls of the tubuli are composed of bony tissue indistinguishable from the cancellar bone found in dermal bone.
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Neoceratodus forsteri (Australian lungfish)
Trends in Genetics, 2021Manfred, Schartl, Axel, Meyer
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