Results 31 to 40 of about 1,359 (180)
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
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]
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
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.
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]
Bayesian phylogenetic methods integrating simultaneously morphological and stratigraphic information have been applied increasingly among paleontologists.
Andrea Cau
doaj +2 more sources
Neoceratodus forsteri transcriptome
Neoceratodus forsteri ...
Frédéric Delsuc (70930) +21 more
core +1 more source
Studies on the Queensland Lungfish, Neoceratodus forsteri (Krefft). [PDF]
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).
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]
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

