Results 1 to 10 of about 383 (88)

Morphometric analysis of lungfish endocasts elucidates early dipnoan palaeoneurological evolution [PDF]

open access: yeseLife, 2022
The lobe-finned fish, lungfish (Dipnoi, Sarcoptergii), have persisted for ~400 million years from the Devonian Period to present day. The evolution of their dermal skull and dentition is relatively well understood, but this is not the case for the ...
Alice M Clement   +6 more
doaj   +2 more sources

Morphology and histology of the olfactory organ of two African lungfishes, Protopterus amphibius and P. dolloi (Lepidosirenidae, Dipnoi) [PDF]

open access: yesApplied Microscopy, 2021
The olfactory organs of two African lungfishes, Protopterus amphibius and P. dolloi, were investigated using a stereo microscope and a compound light microscope and were described anatomically, histologically, and histochemically.
Hyun Tae Kim, Jong Young Park
doaj   +2 more sources

A new lungfish (Ceratodontoidei, Dipnoi) from the Early Jurassic of Chongqing, China [PDF]

open access: yesScientific Reports
Dipnoi (lungfishes) are a group of air-breathing sarcopterygian fishes that survived over hundreds of millions of years and their crown members (Neoceratodus, Lepidosiren and Protopterus) are among the closest living relatives of the tetrapods. After the
Bo Luo   +8 more
doaj   +2 more sources

A new origin of the ‘modern’ lungfish dentition revealed by taxonomic overlap between Devonian and Carboniferous dipnoans [PDF]

open access: yesPeerJ
Lungfishes (Dipnoi, Sarcopterygii) initially radiated in the Early Devonian, and reached the apogee of their diversity during this period, especially with regard to their dentitions.
Amin El Fassi El Fehri   +4 more
doaj   +3 more sources

The cranial endocast of the Upper Devonian dipnoan ‘Chirodipterus’ australis [PDF]

open access: yesPeerJ, 2018
One of the first endocasts of a dipnoan (lungfish) to be realised was that of the Upper Devonian taxon Chirodipterus australis. This early interpretation was based on observations of the shape of the cranial cavity alone and was not based on a natural ...
Struan A.C. Henderson, Tom J. Challands
doaj   +3 more sources

Investigating a Devonian vertebrate assemblage with synchrotron microtomography of coprolites [PDF]

open access: yesScientific Reports
Fossilised faeces (coprolites) are a unique source of information as they record palaeontological evidence of animal behaviour (autecology) as well as interactions between extinct organisms and their environment (synecology).
Arnaud Rebillard   +3 more
doaj   +2 more sources

The cranial endocast of Dipnorhynchus sussmilchi (Sarcopterygii: Dipnoi) and the interrelationships of stem-group lungfishes [PDF]

open access: yesPeerJ, 2016
The first virtual cranial endocast of a lungfish from the Early Devonian, Dipnorhynchus sussmilchi, is described. Dipnorhynchus, only the fourth Devonian lungfish for which a near complete cranial endocast is known, is a key taxon for clarifying ...
Alice M. Clement   +3 more
doaj   +3 more sources

ErythroCite: a database on red blood cell size of fishes [PDF]

open access: yesScientific Data
Size is a fundamental trait in biology, and cell size plays a key role in cellular functions, influencing physiological adaptations and evolutionary processes in living organisms. For decades, scientists have been fascinated by the considerable variation
Félix P. Leiva   +9 more
doaj   +2 more sources

A high latitude Devonian lungfish, from the Famennian of South Africa [PDF]

open access: yesPeerJ, 2019
New fossil lungfish remains comprising two parasphenoids, tooth plates and scales from the Famennian Witpoort Formation of South Africa are described. From the parasphenoid material, which bears similarity to Oervigia and Sagenodus but is nevertheless ...
Robert W. Gess, Alice M. Clement
doaj   +3 more sources

New Cretaceous lungish material from southern South America, Argentina [PDF]

open access: yesResearch & Knowledge, 2017
Dipnoi is a large group of sarcopterygians which ranges from the Early Devonian to the present. Traditionally, it was considered that their taxonomic diversity decreased at the end of Paleozoic.
P. Guillermina Giordano   +2 more
doaj   +1 more source

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