Life history and ossification patterns in Miguashaia bureaui reveal the early evolution of osteogenesis in coelacanths
The study of development is critical for revealing the evolution of major vertebrate lineages. Coelacanths have one of the longest evolutionary histories among osteichthyans, but despite access to extant representatives, the onset of their weakly ossified endoskeleton is still poorly understood. Her...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
PeerJ Inc.
2022-04-01
|
| Series: | PeerJ |
| Subjects: | |
| Online Access: | https://peerj.com/articles/13175.pdf |
| _version_ | 1797424292018782208 |
|---|---|
| author | Jorge Mondéjar Fernández François J. Meunier Richard Cloutier Gaël Clément Michel Laurin |
| author_facet | Jorge Mondéjar Fernández François J. Meunier Richard Cloutier Gaël Clément Michel Laurin |
| author_sort | Jorge Mondéjar Fernández |
| collection | DOAJ |
| description | The study of development is critical for revealing the evolution of major vertebrate lineages. Coelacanths have one of the longest evolutionary histories among osteichthyans, but despite access to extant representatives, the onset of their weakly ossified endoskeleton is still poorly understood. Here we present the first palaeohistological and skeletochronological study of Miguashaia bureaui from the Upper Devonian of Canada, pivotal for exploring the palaeobiology and early evolution of osteogenesis in coelacanths. Cross sections of the caudal fin bones show that the cortex is made of layers of primary bone separated by lines of arrested growth, indicative of a cyclical growth. The medullary cavity displays remnants of calcified cartilage associated with bony trabeculae, characteristic of endochondral ossification. A skeletochronological analysis indicates that rapid growth during a short juvenile period was followed by slower growth in adulthood. Our new analysis highlights the life history and palaeoecology of Miguashaia bureaui and reveals that, despite differences in size and habitat, the poor endoskeletal ossification known in the extant Latimeria chalumnae can be traced back at least 375 million years ago. |
| first_indexed | 2024-03-09T07:59:02Z |
| format | Article |
| id | doaj.art-e9a57a039380403d8b054f4e0adb3969 |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T07:59:02Z |
| publishDate | 2022-04-01 |
| publisher | PeerJ Inc. |
| record_format | Article |
| series | PeerJ |
| spelling | doaj.art-e9a57a039380403d8b054f4e0adb39692023-12-03T00:49:24ZengPeerJ Inc.PeerJ2167-83592022-04-0110e1317510.7717/peerj.13175Life history and ossification patterns in Miguashaia bureaui reveal the early evolution of osteogenesis in coelacanthsJorge Mondéjar Fernández0François J. Meunier1Richard Cloutier2Gaël Clément3Michel Laurin4Division Paleontology and Historical Geology, Senckenberg Research Institute and Natural History Museum, Frankfurt am Main, GermanyLaboratoire de Biologie des Organismes et des Écosystèmes Aquatiques (BOREA), UMR 8067, MNHN, CNRS, SU, Département Adaptations du Vivant, Muséum National d’Histoire Naturelle, Paris, FranceDépartement de Biologie, Chimie et Géographie, Université du Québec à Rimouski, Rimouski, CanadaCentre de Recherche en Paléontologie—Paris (CR2P), UMR 7207, MNHN, CNRS, SU, Département Origines et Évolution, Muséum National d’Histoire Naturelle, Paris, FranceCentre de Recherche en Paléontologie—Paris (CR2P), UMR 7207, MNHN, CNRS, SU, Département Origines et Évolution, Muséum National d’Histoire Naturelle, Paris, FranceThe study of development is critical for revealing the evolution of major vertebrate lineages. Coelacanths have one of the longest evolutionary histories among osteichthyans, but despite access to extant representatives, the onset of their weakly ossified endoskeleton is still poorly understood. Here we present the first palaeohistological and skeletochronological study of Miguashaia bureaui from the Upper Devonian of Canada, pivotal for exploring the palaeobiology and early evolution of osteogenesis in coelacanths. Cross sections of the caudal fin bones show that the cortex is made of layers of primary bone separated by lines of arrested growth, indicative of a cyclical growth. The medullary cavity displays remnants of calcified cartilage associated with bony trabeculae, characteristic of endochondral ossification. A skeletochronological analysis indicates that rapid growth during a short juvenile period was followed by slower growth in adulthood. Our new analysis highlights the life history and palaeoecology of Miguashaia bureaui and reveals that, despite differences in size and habitat, the poor endoskeletal ossification known in the extant Latimeria chalumnae can be traced back at least 375 million years ago.https://peerj.com/articles/13175.pdfBoneCartilageEvolutionPalaeobiologySkeletochronologySarcopterygii |
| spellingShingle | Jorge Mondéjar Fernández François J. Meunier Richard Cloutier Gaël Clément Michel Laurin Life history and ossification patterns in Miguashaia bureaui reveal the early evolution of osteogenesis in coelacanths PeerJ Bone Cartilage Evolution Palaeobiology Skeletochronology Sarcopterygii |
| title | Life history and ossification patterns in Miguashaia bureaui reveal the early evolution of osteogenesis in coelacanths |
| title_full | Life history and ossification patterns in Miguashaia bureaui reveal the early evolution of osteogenesis in coelacanths |
| title_fullStr | Life history and ossification patterns in Miguashaia bureaui reveal the early evolution of osteogenesis in coelacanths |
| title_full_unstemmed | Life history and ossification patterns in Miguashaia bureaui reveal the early evolution of osteogenesis in coelacanths |
| title_short | Life history and ossification patterns in Miguashaia bureaui reveal the early evolution of osteogenesis in coelacanths |
| title_sort | life history and ossification patterns in miguashaia bureaui reveal the early evolution of osteogenesis in coelacanths |
| topic | Bone Cartilage Evolution Palaeobiology Skeletochronology Sarcopterygii |
| url | https://peerj.com/articles/13175.pdf |
| work_keys_str_mv | AT jorgemondejarfernandez lifehistoryandossificationpatternsinmiguashaiabureauirevealtheearlyevolutionofosteogenesisincoelacanths AT francoisjmeunier lifehistoryandossificationpatternsinmiguashaiabureauirevealtheearlyevolutionofosteogenesisincoelacanths AT richardcloutier lifehistoryandossificationpatternsinmiguashaiabureauirevealtheearlyevolutionofosteogenesisincoelacanths AT gaelclement lifehistoryandossificationpatternsinmiguashaiabureauirevealtheearlyevolutionofosteogenesisincoelacanths AT michellaurin lifehistoryandossificationpatternsinmiguashaiabureauirevealtheearlyevolutionofosteogenesisincoelacanths |