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Lungfish are best known for retaining ancestral characteristics within the Osteichthyes, including the ability to breathe air, and ancestral structures within Sarcopterygii, including the presence of lobed fins with a well-developed internal skeleton.
In Neoceratodus forsteri, an extant lungfish from Australia, the Meckel’s persists as a cartilaginous element throughout life, covered in angular and prearticular bones (Figure 7, Table 3).
1 de jun. de 2020 · This past March we unveiled an extraordinary fossil—a complete skeleton of a 375-million-year-old fish, Elpistostege watsoni—that goes a long way toward filling that gap in...
12 de ago. de 2014 · Here we describe a well-preserved pectoral-fin endoskeleton in the Middle Devonian (Givetian) lungfish Pentlandia macroptera from the John O’Groats fish bed, Caithness, northeastern Scotland. The skeleton is in association with a cleithrum and clavicle, and consists of a series of at least eight mesomeres.
2 de may. de 2022 · The gill skeleton closely resembles that of porolepiforms 36,56,57, differing most conspicuously in retaining multiple basibranchials as in lungfishes and tetrapodomorphs.
4 de jun. de 2024 · Lungfish, (subclass Dipnoi), any member of a group of six species of living air-breathing fishes and several extinct relatives belonging to the class Sarcopterygii and characterized by the possession of either one or two lungs. The Dipnoi first appeared in the Early Devonian Epoch (about 419.2.
12 de jul. de 2022 · Cranial endocasts of fossil and extant lungfish, analysed via tomography and novel principle component analyses designed for use with missing data, show that lungfish forebrain and inner ear regions show the most variation in brain shape evolution through time.
