Fiche participant :
Nom : Bourseau
Prénom : Jean-Paul
Liste des participations aux campagnes accessibles [+] [-]
- BIOGEOCAL
- Leg 1 (Tue Apr 07 00:00:00 CEST 1987 - Tue Apr 21 00:00:00 CEST 1987)
- Carottage (Paléontologue, spécialiste des crinoïdes, Université Claude Bernard Lyon 1)
- Leg 2 (Sat Apr 25 00:00:00 CEST 1987 - Wed May 06 00:00:00 CEST 1987)
- Carottage (Paléontologue, spécialiste des crinoïdes, Université Claude Bernard Lyon 1)
- CALSUB
- Leg 1 (Sun Feb 19 00:00:00 CET 1989 - Tue Feb 28 00:00:00 CET 1989)
- Collecte - Tri (Paléontologue, spécialiste des crinoïdes, Université Claude Bernard Lyon 1)
- Leg 2 (Fri Mar 03 00:00:00 CET 1989 - Mon Mar 13 00:00:00 CET 1989)
- Collecte - Tri (Paléontologue, spécialiste des crinoïdes, Université Claude Bernard Lyon 1)
Bibliographie (9) [+] [-]
Exporter les bibliographies
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Ameziane N., Bourseau J.P., Avocat R. & Roux M. 1990. Les Crinoïdes pédonculés de Nouvelle-Calédonie: inventaire et réflexions sur les taxons archaïques. Balkema: 117-124
Résumé [+] [-]Several french oceanographie expeditions have permitted to explore the bathyals lope, off the New Caledonia Island (South Western Pacifie), between 300 and 2 900 metres depth. During these recent cruises (Biocal, Biogeocal, Musorstom IV-VI, Smib, Calsub),many stalked Crinoids of different families were sampled, or observed and took in pictures with the help of the IFREMER submarine "Cyana". The New Caledonian Crinoid fauna is relatively abundant but less diversified that the fauna which was collected off the Philippines Islands (Western Pacifie). A first list of this stalked Crinoid fauna (13 taxa identified) is established in this paper with a description of three new species (Metacrinus l evii n. sp., Caledonicrinus vaubani n. sp., Proeudesicrinus lifouensis n. sp.) belonging to two new genera (Caledonicrinus n. gen., Proeudesicrinus n. gen.). Further descriptions are supplied for some taxa (Naumachocrinus hawaiiensis, Gymnocrinus, Guillecrinus).Nevertheless, New Caledonian stalked Crinoid fauna appears to be the most archaic in there cent oceans with close relationship with the fossil fauna of the Mesozoic Mesogean Sea. Many taxa have inneed very ancient affinities. Guillecrinus sp. Is the only living representative of the Paleozoic subclass Inadunata. Proisocrinus ruberrimus, Gymnocrinus richeri, Proeudesicrinus lifouensis have relationships with Jurassic adaptative radiation. Caledonicrinus vaubani is the most archaic (late Cretaceous affinities) and the shallower species of the deep-sea family Bathycrinidae. Consequently, historical biogeography and phylogeny of the Indo-Pacific stalked Crinoids through Post-Paleozoic times are discussed with regard to the origin of New Caledonia fauna.
Campagnes accessibles citées (8) [+] [-]
Codes des collections associés: IE (Échinodermes) -
Ameziane N., Bourseau J.P. & Roux M. 1991. LES CRINOIDES PEDONCULES DE L'OUEST PACIFIQUE· UN MODELE ZOOBATHYMETRIQUE POUR L'ANALYSE DES CALCAIRES A ENTROQUES ET DU TECTONOEUSTATISME AU JURASSIQUE, L'environnement carbonaté bathyal en Nouvelle-Calédonie (Programme Envimarges). 15. Documents et Travaux de l'IGAL:182-198
Résumé [+] [-]Les calcaires à entroques correspondent à des accumulations d'ossicules d'échinodermes. Ce sont principalement des calcaires crinoïdiques, mais occasionnellement les débris d'astérides peuvent dominer. Le bon niveau d'organisation des ossicules de crinoïdes permet leur reconnaissance et leur interprétation écologique à partir de l'analyse de lames minces, ce qui étend leur intérêt à l'étude des forages. Pendant longtemps, ces animaux ont été pris pour des "fossiles vivants" réfugiés dans les profondeurs océaniques. Cela faisait obstacle à toute interprétation actualiste des calcaires à entroques. En fait, les faunes fossiles habitaient le plus fréquemment les plate-formes externes et les talus continentaux, donc des milieux similaires à ceux des faunes actuelles, mis à')part quelques périodes particulières (Roux, 1979). Ce changement d'optique ouvre la voie à l'analyse des modèles fournis par l'océan actuel en tant que références utiles à l'interprétation paléoécologique des faunes fossiles de crinoïdes (Roux, 1982 et 1987). Celles-ci enregistrent avec précision des points cruciaux de l'histoire des marges continentales. La bonne connaissance des faunes actuelles va favoriser une lecture correcte des annales paléontologiques. Elle fournira un remarquable outil pour apprécier les paléobathymétries, pour reconstituer l'évolution morphologique des marges et pour comprendre la géométrie et la localisation des réservoirs potentiels d'hydrocarbures que peuvent être les calcaires à entroques.
Campagnes accessibles citées (1) [+] [-]
Codes des collections associés: IE (Échinodermes) -
Améziane n., Bourseau J.P. & Roux M. 1987. Les crinoïdes pédonculés de Nouvelle-Calédonie (SW Pacifique) : une faune bathyale ancestrale issue de La Mésogée mésozoïque. Comptes Rendus des séances de l'Académie des Sciences de Paris 304(1): 15-18
Résumé [+] [-]The stalked crinoid fauna off New Caledonia (S.W. Pacific): a bathyal relic from the Mesogean Sea. During 1985, MUSORSTOM V and BIOCAL cruises were conducted on the bathyal slope off New Caledonia. They revealed a benthic fauna abunding in stalked crinoids. The following living species are listed : Saracrinus nobilis, Metacrinus aff. Serratus, Diplocrinus alternicirrus, Proisocrinus ruberrimus, Guillecrinus sp., Bathycrinus sp. And Zeuctocrinus sp. One additional species is only known from many brachials which are well-preserved into a bioclatic carbonate sediment: Gymnocrinus sp. Four taxa have very ancient affinities. Guillecrinus sp. is the only living representative of the paleozoic subclass Inadunata. P. ruberrinmus and Gymnocrinus have relationships with jurassic adaptative radiation. Zeuctocrinus sp. is the most archaic (late Cretaceous affinities) and the shallower species of the deep-sea family Bathycrinidae. The stalked crinoid fauna of New Caledonia appears to be the most archaic in recent oceans with close relationships with the fossil fauna of the mesozoic Mesogean Sea. Consequently, historical biogeography of the Indo-Pacific stalked crinoids through Post-Paleozoic times is discussed with regard to the origin of New Caledonia fauna.
Campagnes accessibles citées (2) [+] [-]
Codes des collections associés: IE (Échinodermes) -
Bourseau J.P., Améziane N. & Roux M. 1987. Un Crinoïde pédonculé nouveau (Echinodermes), représentant actuel de la famille jurassique des Hemicrinidae : Gymnocrinus richeri nov. sp. des fonds bathyaux de Nouvelle-Calédonie (S. W. Pacifique). Comptes Rendus de l'Académie des Sciences 305: 595-599
Résumé [+] [-]A recent representative (Echinodermata) of the jurassic family Hemicrinidae: Gymnocrinusricheri nov. sp. from the bathyal slope, off the New Caledonia Island (South Western Pacific) Gymnocrinus richeri nov. sp. is a new stalked crinoid (Crinoidea) with a short stem and a very asymmetrical crown, a feature which was not yet observed in the recent fauna. The peculiar morphology of the brachials suggests an attribution to the jurassic genus Gymnocrinus which was only known from a few disassociated ossicles. The complete specimens permit to confirm the close affinities between Cyrtocrinus, Gymnocrinus and Hemicrinus, three genera which may be gathered into the family Hemicrinidae (Jurassic-Lower Cretaceous). That strange crinoid was discovered from the epibathyal slope, off New Caledonia at a depth of 470m.
Campagnes accessibles citées (4) [+] [-]
Codes des collections associés: IE (Échinodermes) -
Bourseau J.P. & Roux M. 1989. Echinodermes : Crinoïdes Pentacrinidae (MUSORSTOM 2 & CORINDON 2), in Forest J.(Ed.), Résultats des campagnes MUSORSTOM 4. Mémoires du Muséum national d'Histoire naturelle 143:113-201, ISBN:2-85653-150-4
Résumé [+] [-]Echinodermata : Pentacrinidae crinoids procured by the MUSORSTOM 2 and CORINDON 2 expeditions. During MUSORSTOM 2 and CORINDON 2 expeditions (West Philippines for the former, Makassar channel for the latter) many stalked crinoids of the family Pentacrinidae were sampled. They are more diversified and comparatively more abundant than the fauna which was collected during the MUSORSTOM 1 expedition. The samplings come from depths between 170 and 970 meters. Four genera are represented : Diplocrinus, Hypalocrinus, Metacrinus and Saracrinus. Detailed descriptions of the ten following species are given : D. alternicirrus, D. sibogae, H. naresianus, M. interruptus, M. musorstomae, M. nodosus, M. serratus, M. wyvillii, S. angulatus and S. superbus. For each specimen, data on morphological features, biometry, arm branching and ossicle articulations are given. Stalk and arm joints were observed under, scanning electron microscope, especially stem synostosis with regard to their importance for taxonorny. Sometimes, some peculiar growth patterns appear to be a consequence of fast regeneration. Such features are illustrated by the proximal part of the stalk of a few specimens belonging to S. angulatus and M. wyvillii. As numerous individuals of each species were collected, it was possible to study the variation of crown and stem characters. The morphological features and their variability seem to be depth related. The bathymetrical distribution of Pentacrinidae in the Western Pacific province is examined and discussed. Intraspecific polymorphism with regard to external stem morphology and arm organization is suggested for a few species of this biogeographical province. The number of recognized species might be reduced because sorne of them might be interpreted as a consequence of ecophenotypic or geographical variations. So, in the subfamily Metacrininae, S. acutus, S. cingulatus, S. batheri and S. suluensis might be synonyms of S. angulatus. It is also suggested that S. nobilis (S. varians and S. superbus included) shows intraspecific polymorphism or large morphological variations through a wide depth range. For the genus Metacrinus, simplification of the species number is more difficult to effect because each phenotype frequently seems to be clearly distinguished. Nevertheless, M. interruptus and M. musorstomae are very similar and the latter might be an ecophenotype of the former. M. costatus and M. serratus are also two species with large morphological affinities; the first species seems to be a morph living in deeper environment. M. rotundus might include M. multisegmentatus and M. cyaneus. Stem and arm morphological variations linked to bathymetry are also interpreted in terms of adaptative strategy (r and K selection). For pentacrinids, two unstability limits are suggested from their depth repartition : the upper boundary (about 100 meters) couId correspond to hydrodynamic vulnerability threshold, the lower (about 1500-2500 meters) to the trophic vulnerability limit, the food becoming too scarce. In one genus, species living close to these two unstability limits have a very important morphological variability (for example : M. rotundus, M. wyvillii). In the Western Pacifie, the most stable depth range for these crinoids could be situated between 300 and 600 meters with development of K strategy (M. serratus). Biogeographical repartition of these species is analysed from such a point ofview. Typical r strategy species (M. rotundus, M. wyvillii, S. nobilis, H. naresianus) have the largest geographical repartition. S. nobilis seems to be the species with the most eurybathic pattern with polymorphie characters. Taxonomy, paleoecology and biostratigraphy of fossil stalked crinoids must be reconsidered and discussed as a consequence of these results.
Campagnes accessibles citées (3) [+] [-]
Codes des collections associés: IE (Échinodermes) -
Bourseau J.P., Ameziane-cominardi N., Avocat R. & Roux M. 1991. Echinodermata : Les Crinoïdes pédonculés de Nouvelle-Calédonie, Résultats des campagnes MUSORSTOM 8. Mémoires du Muséum national d'Histoire naturelle 151:229-333, ISBN:2-85653-186-5
Résumé [+] [-]Several French oceanographic expeditions have enhanced the exploration of the bathyal slope, off New Caledonia (South Western Pacific). During these recent cruises (BIOCAL, BIOGEOCAL, MUSORSTOM 4-6, CHALCAL 2, SMIB 3-4, CALSUB), many stalked Crinoids of different orders and suborders (Isocrinida Pentacrinidae, Millericrinina, Bourgueticrinina, Cyrtocrinida and incertae sedis) have been sampled, or observed and photographed with the help of the IFREMER submersible « Cyana ». The samples come from depths between 230 and 3700 meters but the most numerous faunas have been gathered in the 200-600 meters bathymetrical interval. Fourteen genera are represented in the crinoid fauna of New Caledonia which have never been inventoried or illustrated : Metacrinus, Saracrinus, Diplocrinus, Proisocrinus, Caledonicrinus, Porphyrocrinus, Naumachocrinus, Bathycrinus, Gymnocrinus, Holopus, Proeudesicrinus, Thalassocrinus, Hyocrinus, Guillecrinus. Some of these are only known from the New Caledonian bathyal slope ( Caledonicrinus, Proeudesicrinus). Until now the genus Holopus was known only from the Tropical Western Atlantic Ocean and the genus Guillecrinus was known only from the bathyal slope of the Indian Ocean. Detailed descriptions of sixteen species are given. Three taxa are illustrated for the first time : Holopus alidis sp. Nov., Guillecrinus neocaledonicus sp. Nov. And Hyocrinus cyanae sp. Nov. Further descriptions are supplied for some species (Naumachocrinus hawaiiensis, Gymnocrinus richeri) and for three recently described new taxa from New Caledonia off shore (Metacrinus levii, Caledonicrinus vauhani, Proeudesicrinus lifouensis). The New Caledonian Pentacrinid fauna is abundant but ess diverse than the rich fauna which has been collected off the Philippines (Western Pacific). Only four species are known from New Caledonia : Metacrinus levii. Metacrinus musorstomae, Saracrinus nohilis, Diplocrinus allernicirrus. Cyrtocrinida are very numerous between 300-500 meters, especially Gymnocrinus richeri and Holopus alidis. This bathymetrical interval is also occupied by Caledonicrinus vauhani. The shallower species of the deep-sea family Bathycrinidae and by Porphyrocrinus. Proisocrinus ruberrimus. Naumachocrinus hawaiiensis. Bathycrinus. Hyocrinidac with Hyocrinus, Thalassocrinus and the incertae sedis Guillecrinus neocaledonicus are living in the deep sea (below 1000 meters). Nevertheless, the New Caledonian stalked Crinoid fauna appears to be the most archaic in the recent oceans showing a close relationship with the fossil fauna of the Mesozoic Mesogean Sea. Many taxa have indeed very ancient affinities : Guillecrinus is the only living representative of the Paleozoic subclass Inadunata. Proisocrinus ruberrimus. Gymnocrinus richeri and Proeudesicrinus lifouensis have relationships with Jurassic adaptative radiation, Caledonicrinus vauhani is the most archaic (late Cretaceous affinities) species of the deep-sea family Bathycrinidae. Consequently, historical biogeography and phylogeny of the Indo-Pacific stalked Crinoids, through Post-Paleozoic times, are discussed with regard on the origin of New Caledonia fauna.
Campagnes accessibles citées (16) [+] [-]BIOCAL, BIOGEOCAL, CALSUB, CHALCAL 2, CORAIL 2, Restreint, MUSORSTOM 1, MUSORSTOM 2, MUSORSTOM 3, MUSORSTOM 4, MUSORSTOM 5, MUSORSTOM 6, SMIB 3, SMIB 4, VAUBAN 1978-1979, VOLSMAR
Codes des collections associés: IE (Échinodermes) -
Charbonnier S., Vannier J., Gaillard C., Bourseau J.P. & Hantzpergue P. 2007. The La Voulte Lagerstätte (Callovian): Evidence for a deep water setting from sponge and crinoid communities. Palaeogeography, Palaeoclimatology, Palaeoecology 250(1-4): 216-236. DOI:10.1016/j.palaeo.2007.03.013
Résumé [+] [-]The siliceous sponges and crinoids from the Chénier Ravine (France, Lower Callovian) are used here as biological markers to characterize the palaeoenvironment of the adjacent and contemporaneous La Voulte Lagerstätte that is remarkable for its unique soft-bodied fauna (e.g. worms, cirrate octopods, vampire squids). Sponges are abundant with dominant hexactinellids (80%) and lithistids (20%). Four lines of fossil evidence, supported by Recent analogues, indicate that this sponge community inhabited deepwater setting under dysphotic or aphotic conditions: (1) the dominance of hexactinellids; (2) the prevalence of cone shaped and erect morphologies that usually characterize Recent bathyal sponges; (3) the close similarities with Recent hexactinellids from the continental slope and; (4) the lack of encrustation by photophilic organisms. Attachments of sponges on hard substrate (e.g. crystalline basement) and their preservation in soft sediments (e.g. muds) indicate heterogeneous bottom conditions. The Chénier fauna also contains small stalked, asymmetric cyrtocrinid crinoids that are known to live on hard substrates in bathyal environments such as the SW Pacific steep seamounts. Convergent palaeoenvironmental clues obtained from both crinoids and siliceous sponges support the notion that the La Voulte area, including the La Voulte Lagerstätte, was situated in the upper part of the bathyal zone near the slope-basin transition with a water depth most probably exceeding 200 m. Supporting evidence from heterogeneous substrates and complex fault systems indicate a depositional environment along the external part of the slope where steep topographies and blocks usually favour the settlement of cyrtocrinid crinoids and hexactinellid sponges. La Voulte may therefore be one of the rare and extremely precious Mesozoic Lagerstätten to have fossilized a deep marine environment.
Campagnes accessibles citées (2) [+] [-]
Codes des collections associés: IP (Porifères) -
Roux M., Bouchet P., Bourseau J.P., Gaillard C., Grandperrin R., Guille A., Laurin B., Monniot C., Richer de forges B., Rio M., Segonzac M., Vacelet J. & Zibrowius H. 1991. L'environnement bathyal au large de la Nouvelle-Calédonie: résultats préliminaires de la campagne CALSUB et conséquences paléoécologiques. Bulletin, Société Géologique de France 162(4): 675–685
Résumé [+] [-]During the CALSUB cruise, bathyal environments were explored off the New Caledonia corallian platfdrms (southwestern Pacific). Green algae were observed down to a depth of 1 IO m, and red algae down to 145 m. Algal blocks, pebbles and sands contribute to sedimentation to a depth of 400 m and beyond, and are mixed with autochthonous fossils and bioclasts produced by bathyal benthos. Epibathyal fauna suggests similarities with Jurassic and Cretaceous fauna of Tethyan margins (Nautilus, pleurotomarian gastropods, sponges, brachiopods and crinoids…). Richness and abundance of the benthos are the highest in areas where currents are frequent between 300 m and 700 m (sometimes 10 to 20 terebratulid brachiopods per m2 or dense populations of echinoderms entirely covering the substrate). Such currents induce erosion of' substrate or bioclastic accumulations. Biocorrosion seems to be very active in erosion processes, especially on hard grounds. Burrows and traces show the importance of sediment bioturbation on slopes. The occurrence on bathyal slope of some taphonomic processes previously known from geological series and generally considered as closely related lo shallow-water environments should be emphasized.
Campagnes accessibles citées (1) [+] [-] -
Roux M., Bouchet P., Bourseau J.P., Gaillard C., Grandperrin R., Guille A., Laurin B., Monniot C., Richer de forges B., Rio M., Segonzac M., Vacelet J. & Zibrowius H. 1991. L'ETAGEMENT DU BENTHOS BATHYAL OBSERVE A L'AIDE DE LA SOUCOUPE CYANA, L'environnement carbonaté bathyal en Nouvelle-Calédonie (Programme Envimarges). 15. Lambert B. & Roux M. (eds):151-165
Résumé [+] [-]L'exploration de la faune profonde de NouvelleCalédonie a débuté par des campagnes d'essai de 1977 à 1979 sur des fonds de 200 m à 1000 m au large de la Grande Terre, de l'île des Pins et des îles Loyauté (Intès, 1978). A partir de 1985, elle s'est élargie et intensifiée avec les campagnes MUSORSTOM 4 à 6 et CHALCAL (Richer de Forges, 1990), BIOCAL, BIOGEOCAL et SMIB, complétées par des observations directes à l'aide de la soucoupe plongeante Cyana lors de la campagne CALSUB. Nous ne donnerons ici que les grands traits de l'étagement de la macrofaune et de la mégafaune benthique en insistant sur les observations directes insitu lors de la campagne CALSUB et sur la liaison avec les caractères du milieu.
Campagnes accessibles citées (1) [+] [-]