Pulmonary arteries in coelacanths shed light on the vasculature evolution of air-breathing organs in vertebrates.
Sci Rep
; 14(1): 10624, 2024 05 09.
Article
em En
| MEDLINE
| ID: mdl-38724555
ABSTRACT
To date, the presence of pulmonary organs in the fossil record is extremely rare. Among extant vertebrates, lungs are described in actinopterygian polypterids and in all sarcopterygians, including coelacanths and lungfish. However, vasculature of pulmonary arteries has never been accurately identified neither in fossil nor extant coelacanths due to the paucity of fossil preservation of pulmonary organs and limitations of invasive studies in extant specimens. Here we present the first description of the pulmonary vasculature in both fossil and extant actinistian, a non-tetrapod sarcopterygian clade, contributing to a more in-depth discussion on the morphology of these structures and on the possible homology between vertebrate air-filled organs (lungs of sarcopterygians, lungs of actinopterygians, and gas bladders of actinopterygians).
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Artéria Pulmonar
/
Evolução Biológica
/
Peixes
/
Fósseis
Limite:
Animals
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article