Les archives fossiles et l'évolution des ophiures

Section: Paléontologie

Nom de l’agent·e responsable : Ben Thuy

Stratégie de recherche : Comprendre et préserver la nature, la société et l'histoire naturelle

Les ophiures sont des invertébrés marins étroitement liés aux étoiles de mer et représentent une part importante de la faune des fonds marins des océans du monde entier.

Leur registre fossile très riche en fait un organisme modèle idéal pour étudier les tendances évolutives à grande échelle ainsi que les liens entre la biodiversité et l'histoire de la Terre.

La section de paléontologie du Musée national d'histoire naturelle a acquis ces dernières années une expertise internationalement reconnue dans l'étude des ophiures. Avec ce projet, nous continuons à développer cette expertise et étudions le registre fossile des ophiures afin de contribuer à une meilleure compréhension de l’évolution de la vie.

Publications récentes :

Thuy, B., Numberger-Thuy, L.D. & Gale, A.S. (2025) A Jurassic relict of the Triassic stem euryalid brittle star Aspiduriella (Echinodermata, Ophiuroidea). Zootaxa, 5620 (3), 470–476. https://doi.org/10.11646/zootaxa.5620.3.6

Numberger-Thuy, L.D., Ishida, I. & Thuy, B. (2024): Unexpected brittle-star diversity in the Carnian (Upper Triassic) of SW-China and Japan. Cahiers de Biologie Marine, 65: 525-548.

Thuy, B. & Furrer, H. (2024): Brittle stars (Echinodermata: Ophiuroidea) from the Middle Triassic Prosanto Formation of the eastern Swiss Alps, including a relict genus from the Carboniferous. Cahiers de Biologie Marine, 65: 549-558.

Thuy, B., Eriksson, M. E., Kutscher, M., & Numberger-Thuy, L. D. (2024): The beginning of a success story: basalmost members of the extant ophiuroid clade from the Silurian of Gotland, Sweden. European Journal of Taxonomy, 947(1), 216–247. https://doi.org/10.5852/ejt.2024.947.2631

Galli, G., Morigi, C., Thuy, B. & Gariboldi, K. (2024): Late Holocene echinoderm assemblages can serve as paleoenvironmental tracers in an Antarctic fjord. Scientific Reports, 14: 15300. https://doi.org/10.1038/s41598-024-66151-5

Thuy, B., Numberger-Thuy, L.D., Härer, J., Kroh, A., Winkler, V. & Schweigert, G. (2024): Fossil evidence for the ancient link between clonal fragmentation, six-fold symmetry and an epizoic lifestyle in asterozoan echinoderms. Proceedings of the Royal Society B, 291: 20232832. http://doi.org/10.1098/rspb.2023.2832

Reddy, C., Thuy, B., Reid, M. & Gess R. (2023): Earliest known ophiuroids from high palaeolatitude, southern Gondwana, recovered from the Pragian to earliest Emsian Baviaanskloof Formation (Table Mountain Group, Cape Supergroup) South Africa. PLoS ONE 18(10): e0292636. https://doi.org/10.1371/journal.pone.0292636.

Thuy, B. & Numberger-Thuy, L.D. (2023): The Northernmost Occurrence of the Tropical-Subtropical Brittle Star Ophiocoma (Echinodermata, Ophiuroidea) from a Late Cretaceous Rocky Shore in Southern Sweden. Taxonomy, 3: 346–355.

Thuy, B., Piñuela, L. & García-Ramos, J.C. (2023): A relict Triassic brittle star (Echinodermata, Ophiuroidea) in Lower Jurassic strata of Asturias, north-west Spain. Swiss Journal of Palaeontology, 142(10).

Gale, A.S., Ishida, Y., Jagt, J.W.M., Thuy, B., Komatsu, T. & Fujita, T. (2023): A new asteroid (Echinodermata, Astropectinidae) and ophiuroid (Echinodermata, Hemieuryalidae) from the mid-Cretaceous of southern Japan. Paleontological Research, 28(2): 1-14.

Ishida, Y., Tagiri, M., Kato, T., Tsunoda, S., Nakajima, Y., Thuy, B., Numberger-Thuy, L.D. & Fujita, T. (2023): The new brittle-star species Stegophiura takaisoensis (Echinodermata, Ophiuroidea) from the Pliocene of Ibaraki Prefecture, central Japan. Paleontological Research, 28(1), 82-96.

Campetella, D.M., Palópolo, E.E., Rodríguez, M.N., Thuy, B., Ponce, J.J., Carmona, N.B. & Casadío, S. (2023): First Jurassic brittlestar from Neuquén Basin, Argentina. Acta Palaeontologica Polonica, 68(1): 143-153.

Thuy, B., Knox, L., Numberger-Thuy, L.D., Smith, N.S. & Sumrall, C.D. (2023): Ancient deep ocean as a harbor of biotic innovation revealed by Carboniferous ophiuroid microfossils. Geology, 51(2): 157–161 https://doi.org/10.1130/G50596.1

Ishida, Y., Kaneko, M., Yokobori, A., Mita, R., Ishikawa, H., Thuy, B., Numberger-Thuy, L.D. & Fujita, T. (2023): Amphiura multispina (Ophiuroidea, Amphiuridae) from the upper Pleistocene Kioroshi Formation in a drill core at Nagareyama, Chiba, central Japan. Paleontological Research, 27(3): 310-323.

Ishida, Y., Trinh, H.T., Thuy, B., Numberger-Thuy, L.D., Komatsu, T., Doan, H.D., Nguyen, M.T., Shigeta, Y., Fujita, T. (2022): A New Genus and Species of Brittle Star (Ophiuroidea: Ophioleucida) from the Upper Triassic (Carnian) of Northern Vietnam. Paleontological Research, 27(2):147-159.

O’Hara, T.D. & Thuy, B. (2022): Biogeography and taxonomy of Ophiuroidea (Echinodermata) from the Îles Saint-Paul and Amsterdam in the southern Indian Ocean. Zootaxa, 5124 (1): 001-049.

Thuy, B., Nungesser, K. & Numberger-Thuy, L.D. (2022): New Brittle Stars (Echinodermata, Ophiuroidea) from the Oligocene of the Mainz Basin, Germany. Taxonomy, 2: 196-207.

Thuy, B., Eriksson, M.E., Kutscher, M., Lindgren, J., Numberger-Thuy, L.D. & Wright, D.F. (2022): Miniaturization during a Silurian environmental crisis generated the modern brittle star body plan. Communications Biology, 5: 14 (2022).

Ishida, Y., Thuy, B., Nam, G.-S., Martynov, A., Fujita, T. & Kim, J.-H. (2022): A new species of Ophiura (Echinodermata, Ophiuroidea) from Miocene deep-sea deposits in the Pohang Basin, Korea. Paleontological Research, 26 (1): 18-30.

Thuy, B., Maxwell, V. & Pruss, S.B. (2021): A new phosphatized ophiuroid from the lower Triassic of Nevada and its position in the evolutionary history of the Ophiuroidea (Echinodermata). Zootaxa, 5071 (3): 369-383.

Thuy, B., Numberger-Thuy, L.D. & Pineda-Enríquez, T. (2021): New fossils of Jurassic ophiurid brittle stars (Ophiuroidea; Ophiurida) provide evidence for early clade evolution in the deep sea. Royal Society Open Science, 8: 210643. https://doi.org/10.1098/rsos.210643

O’Hara, T.D., Thuy, B., Hugall, A.F. (2021): Relict from the Jurassic: new family of brittle-stars from a New Caledonian seamount. Proceedings of the Royal Society B, 288: 20210684 https://doi.org/10.1098/rspb.2021.0684

Thuy, B. & Numberger-Thuy, L.D. (2021): Brittlestar diversity at the dawn of the Jenkyns Event (early Toarcian Oceanic Anoxic Event): new microfossils from the Dudelange drill core, Luxembourg. Geological Society, London, Special Publications, 514: 83 – 119. https://doi.org/10.1144/SP514-2021-3

Thuy, B., Numberger-Thuy, L.D. & Jagt, J.W.M. (2020): A new ophiacanthid brittle star (Echinodermata, Ophiuroidea) from sublittoral crinoid and seagrass communities of late Maastrichtian age in the southeast Netherlands. PeerJ, 8:e9671.

Numberger-Thuy, L.D. & Thuy, B. (2020): A new bathyal ophiacanthid brittle star (Ophiuroidea: Ophiacanthidae) with Caribbean affinities from the Plio-Pleistocene of the Mediterranean. Zootaxa, 4820: 19-30.