1
|
Charbonnier S, Vogt G, Forel MB, Hieu N, Devillez J, Laville T, Poulet-Crovisier N, King A, Briggs DEG. The La Voulte-sur-Rhône Konservat-Lagerstätte reveals the male and female internal anatomy of the Middle Jurassic clawed lobster Eryma ventrosum. Sci Rep 2024; 14:17744. [PMID: 39085260 PMCID: PMC11291483 DOI: 10.1038/s41598-024-67357-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 07/10/2024] [Indexed: 08/02/2024] Open
Abstract
The biology of extinct animals is usually reconstructed from external morphological characters and comparison with present-day analogues. Internal soft organs are very rarely preserved in fossils and require high-tech approaches for visualization. Here, we report the internal anatomy of a female and male of the ~ 162 Myr-old lobster Eryma ventrosum from the Jurassic La Voulte-sur-Rhône Konservat-Lagerstätte in France using X-ray synchrotron tomography. The Erymidae is an extinct, species-rich, widespread and ecologically important Mesozoic family of decapod crustaceans. Our investigation revealed the anatomy of the locomotory, respiratory, circulatory, excretory, digestive, nervous and sensory, and reproductive systems at a resolution resembling low-magnification histology. Particularly notable is the detailed preservation of the small brain and the fragile hepatopancreas, the main metabolic organ of decapods that decays rapidly post-mortem. The remarkable preservation shows that the internal anatomy of Eryma ventrosum is closer to that of Nephropidae (clawed lobsters) than Astacidae (freshwater crayfish), their closest living relatives based on skeletal morphology. The microanatomy of the gonads and hepatopancreas indicates that the two specimens investigated were a young, well-nourished female and male prior to sexual maturity. The analysis of the soft anatomy reveals remarkable conservatism over 160 Myr and offers new insights into feeding, reproduction, life history and lifestyle of an important component of the macrozoobenthos of Middle Jurassic seas.
Collapse
Affiliation(s)
- Sylvain Charbonnier
- Muséum National d'Histoire Naturelle, CNRS UMR 7207, Centre de Recherche en Paléontologie-Paris, CR2P, Sorbonne Université, Paris, France.
| | - Günter Vogt
- Faculty of Biosciences, University of Heidelberg, Heidelberg, Germany
| | - Marie-Béatrice Forel
- Muséum National d'Histoire Naturelle, CNRS UMR 7207, Centre de Recherche en Paléontologie-Paris, CR2P, Sorbonne Université, Paris, France
| | - Nathan Hieu
- Muséum National d'Histoire Naturelle, CNRS UMR 7207, Centre de Recherche en Paléontologie-Paris, CR2P, Sorbonne Université, Paris, France
| | - Julien Devillez
- Muséum National d'Histoire Naturelle, CNRS UMR 7207, Centre de Recherche en Paléontologie-Paris, CR2P, Sorbonne Université, Paris, France
| | - Thomas Laville
- Muséum National d'Histoire Naturelle, CNRS UMR 7207, Centre de Recherche en Paléontologie-Paris, CR2P, Sorbonne Université, Paris, France
| | - Nathalie Poulet-Crovisier
- Muséum National d'Histoire Naturelle, CNRS UMR 7207, Centre de Recherche en Paléontologie-Paris, CR2P, Sorbonne Université, Paris, France
| | - Andrew King
- Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, France
| | - Derek E G Briggs
- Department of Earth and Planetary Sciences, Yale Peabody Museum, Yale University, New Haven, CT, USA
| |
Collapse
|
2
|
Amador L, Victoriano PF, D’Elía G. Molecular species delimitation reveals hidden specific diversity within a freshwater burrowing crayfish (Decapoda: Parastacidae) from southern Chile. SYST BIODIVERS 2021. [DOI: 10.1080/14772000.2020.1865471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Luis Amador
- Doctorado en Ciencias mención Ecología y Evolución, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, 5090000, Chile
- Universidad Laica Vicente Rocafuerte, Guayaquil, 090514, Ecuador
| | - Pedro F. Victoriano
- Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, 4030000, Chile
| | - Guillermo D’Elía
- Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, 5090000, Chile
| |
Collapse
|
3
|
More evolution underground: Accelerated mitochondrial substitution rate in Australian burrowing freshwater crayfishes (Decapoda: Parastacidae). Mol Phylogenet Evol 2017; 118:88-98. [PMID: 28966124 DOI: 10.1016/j.ympev.2017.09.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 08/18/2017] [Accepted: 09/26/2017] [Indexed: 12/11/2022]
Abstract
To further understand the evolutionary history and mitogenomic features of Australia's highly distinctive freshwater crayfish fauna, we utilized a recently described rapid mitogenome sequencing pipeline to generate 24 new crayfish mitogenomes including a diversity of burrowing crayfish species and the first for Astacopsis gouldi, the world's largest freshwater invertebrate. Whole mitogenome-based phylogeny estimates using both Bayesian and Maximum Likelihood methods substantially strengthen existing hypotheses for systematic relationships among Australian freshwater crayfish with evidence of pervasive diversifying selection and accelerated mitochondrial substitution rate among the members of the clade representing strongly burrowing crayfish that may reflect selection pressures for increased energy requirement for adaptation to terrestrial environment and a burrowing lifestyle. Further, gene rearrangements are prevalent in the burrowing crayfish mitogenomes involving both tRNA and protein coding genes. In addition, duplicated control regions were observed in two closely related Engaeus species, together with evidence for concerted evolution. This study significantly adds to the understanding of Australian freshwater crayfish evolutionary relationships and suggests a link between mitogenome evolution and adaptation to terrestrial environments and a burrowing lifestyle in freshwater crayfish.
Collapse
|