Results 31 to 40 of about 1,359 (180)

The “mid”-Cretaceous (Lower Cenomanian) Continental Vertebrates of Gara Samani, Algeria. Sedimentological Framework and Palaeodiversity

open access: yesFrontiers in Earth Science, 2022
Excellent outcrops of the upper part of the “Continental Intercalaire” deposits occur in the Gara Samani area, southern Algeria. These strata are recognised herein as belonging to the Gara Samani Formation, which is composed of the Samani Vertebrate-rich
Madani Benyoucef   +6 more
doaj   +1 more source

Using the swimbladder as a respiratory organ and/or a buoyancy structure—Benefits and consequences

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 335, Issue 9-10, Page 831-842, November 1, 2021., 2021
Graphical abstract Abstract A swimbladder is a special organ present in several orders of Actinopterygians. As a gas‐filled cavity it contributes to a reduction in overall density, but on descend from the water surface its contribution as a buoyancy device is very limited because the swimbladder is compressed by increasing hydrostatic pressure.
Bernd Pelster
wiley   +1 more source

Anatomy and histology of the spiral valve intestine in juvenile Australian lungfish, Neoceratodus forsteri [PDF]

open access: yes, 2009
The Australian lungfish, Neoceratodus forsteri, is the only vertebrate that possesses a complete spiral valve intestine with pre-pyloric coiling. This study describes the anatomy and histology of the spiral valve intestine in juvenile N.
Joss, Jean   +1 more
core   +1 more source

Early evolution of the lungfish pectoral fin endoskeleton: evidence from the Middle Devonian (Givetian) Pentlandia macroptera

open access: yesFrontiers in Earth Science, 2014
As the closest living relatives of tetrapods, lungfishes are frequently used as extant models for exploring the fin-to-limb transition. These studies have generally given little consideration to fossil taxa.
Emma eJude   +3 more
doaj   +1 more source

Topological Analysis of the Brainstem of the Australian Lungfish Neoceratodus forsteri.

open access: yesBrain, behavior and evolution, 2022
This paper presents a survey of the cell masses in the brainstem of the Australian lungfish Neoceratodus forsteri, based ontransversely cut Bodian-stained serial sections, supplemented by immunohistochemical data from the recent literature. This study is intended to serve a double purpose.
openaire   +3 more sources

Specimen-level phylogenetics in paleontology using the Fossilized Birth-Death model with sampled ancestors [PDF]

open access: yesPeerJ, 2017
Bayesian phylogenetic methods integrating simultaneously morphological and stratigraphic information have been applied increasingly among paleontologists.
Andrea Cau
doaj   +2 more sources

Neoceratodus forsteri transcriptome

open access: yes, 2017
Neoceratodus forsteri ...
Frédéric Delsuc (70930)   +21 more
core   +1 more source

Studies on the Queensland Lungfish, Neoceratodus forsteri (Krefft). [PDF]

open access: yesAustralian Journal of Zoology, 1965
The lung of Neoceratodus forsteri consists of a single elongated sac dorsal to the gut and attached firmly along the dorsal mid-line in the region of the vertebral column. It communicates with the gut through the pneumatic duct which opens ventrolaterally via the glottis, on the right side of the pharynx.
openaire   +1 more source

The first virtual cranial endocast of a lungfish (sarcopterygii: dipnoi).

open access: yesPLoS ONE, 2014
Lungfish, or dipnoans, have a history spanning over 400 million years and are the closest living sister taxon to the tetrapods. Most Devonian lungfish had heavily ossified endoskeletons, whereas most Mesozoic and Cenozoic lungfish had largely ...
Alice M Clement, Per E Ahlberg
doaj   +1 more source

Respiratory Properties of Blood and Pattern of Gas Exchange in the Lungfish Neoceratodus forsteri (Krefft) [PDF]

open access: yes, 1966
Blood respiratory properties and gas exchange patterns have been studied in the lungfish Neoceratodus. O2 - Hb dissociation curve reveals a high affinity for O2 (P50 of 11 mm Hg at PCO2 3.5 mm Hg).
Johansen, Kjell   +5 more
core   +1 more source

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