4,321 research outputs found
Olssonia yasila Sanders & Merle & Puillandre 2019, n. comb.
No full textOlssonia yasila (Olsson, 1930) n. comb. (Fig. 5N, O) Bursa chira var. yasila Olsson, 1930: 63, pl. 10, figs 3, 4. Marsupina yasila – Beu 1988: 71. TYPE LOCALITY. — Middle Eocene (Bartonian) Talara Formation, Yasila, Peru TYPE MATERIAL. — Holotype (PRI 24254), with two paratypes (PRI 24255 and PRI 24262). GEOGRAPHIC AND STRATIGRAPHIC OCCURRENCE. — Known only from the Bartonian of Peru.Published as part of Sanders, Malcolm T., Merle, Didier & Puillandre, Nicolas, 2019, A review of fossil Bursidae and their use for phylogeny calibration, pp. 247-265 in Geodiversitas 41 (5) on page 256, DOI: 10.5252/geodiversitas2019v41a5, http://zenodo.org/record/369993
Aquitanobursa amphitrites Sanders & Merle & Puillandre 2019, n. comb.
No full textAquitanobursa amphitrites (Maury, 1917) n. comb. (Fig. 5T) Bursa amphitrites Maury, 1917: 273, pl. 17, fig. 9. — Beu 2010: 42, pl. 1, figs 1-4, 8. Bursa amphitrites – E. Vokes 1973: 100 (in part = Marsupina bufo) (not Maury, 1917). Bursa (Colubrellina) caelata amphitrites – Aguilar in Seyfried et al. 1985: 64, appendix (not Maury, 1917). TYPE LOCALITY. — Bluff 3, Cercado de Mao, Dominican Republic; Cercado Formation, late Miocene. TYPE MATERIAL. — Holotype (PRI 28763). GEOGRAPHIC AND STRATIGRAPHIC OCCURRENCE. — Occurs from the Late Miocene to Early Pliocene Gurabo Formation (Tortonian to Piacenzian, according to Denniston et al. 2008) in the Dominican Republic and from the early Middle Miocene Buenevara Adentro beds of the Paraguaná Peninsula, Venezuela (Beu 2010).Published as part of Sanders, Malcolm T., Merle, Didier & Puillandre, Nicolas, 2019, A review of fossil Bursidae and their use for phylogeny calibration, pp. 247-265 in Geodiversitas 41 (5) on page 258, DOI: 10.5252/geodiversitas2019v41a5, http://zenodo.org/record/369993
Olssonia chira Sanders & Merle & Puillandre 2019, n. comb.
No full textOlssonia chira (Olsson, 1930) n. comb. (Fig. 5L, M) Bursa chira Olsson, 1930: 62, pl. 10, figs 5-7,13. Marsupina chira – Beu 1988: 71; 2010: 72. TYPE MATERIAL. — Holotype (PRI 24257), one paratype (PRI 24263). TYPE LOCALITY. — Late Eocene/Early Oligocene of Chira Formation, Quercotilla, Peru. GEOGRAPHIC AND STRATIGRAPHIC OCCURRENCE. — Olssonia chira n. comb. seems to occur only on the Late Eocene/Early Oligocene of Peru.Published as part of Sanders, Malcolm T., Merle, Didier & Puillandre, Nicolas, 2019, A review of fossil Bursidae and their use for phylogeny calibration, pp. 247-265 in Geodiversitas 41 (5) on page 256, DOI: 10.5252/geodiversitas2019v41a5, http://zenodo.org/record/369993
Aquitanobursa chipolana Sanders & Merle & Puillandre 2019, n. comb.
No full textAquitanobursa chipolana (Schmelz, 1997) n. comb. (Fig. 5F, G) Bursa (Bufonariella) chipolana Schmelz, 1997: 105, pl. 1, figs 1a-c; pl. 2, figs 1a-b, 2a-b. — Vokes 1997: 212. Bursa (Bufonariella) pelouatensis – Vokes 1973: 97, text-fig. 2 (not Cossmann & Peyrot, 1924). Bursa chipolana – Beu 2010: 44, pl. 1, figs 5-7, 10. TYPE LOCALITY. — Tulane University locality TU546, Chipola Formation (Burdigalian), Tenmile Creek, Florida, United States. TYPE MATERIAL. — Bursa (Bufonariella) chipolana, holotype (UF 73199), figured paratype (USNM 647108), from TU547, west bank Chipola River 600 m upstream from Fourmile Creek, Calhoun Co. (specimen figured by Vokes 1973: text-figs 2a-b, refigured in good quality by Beu 2010: pl. 1, figs 6, 7); figured paratype (UF 73200), from TU951, Tenmile Creek, Calhoun Co.; nine further paratypes from localities on or near the Chipola River listed by Schmelz (1997). GEOGRAPHIC AND STRATIGRAPHIC OCCURRENCE. — Aquitanobursa chipolana n. comb. is recorded only from the Chipola Formation (Burdigalian) on and near the Chipola River, Calhoun Co., Florida, United States. REMARKS Aquitanobursa chipolana n. comb. seems to have a slightly greater number of primary cords than other species referred to Aquitanobursa n. gen. This species possibly belongs in another genus, for which a new name needs to be created.Published as part of Sanders, Malcolm T., Merle, Didier & Puillandre, Nicolas, 2019, A review of fossil Bursidae and their use for phylogeny calibration, pp. 247-265 in Geodiversitas 41 (5) on page 258, DOI: 10.5252/geodiversitas2019v41a5, http://zenodo.org/record/369993
Aquitanobursa Sanders & Merle & Puillandre 2019, n. gen.
No full textGenus Aquitanobursa n. gen. TYPE SPECIES. — Ranella grateloupi d’Orbigny, 1852. DERIVATIO NOMINIS. — Derived from Aquitaine (Aquitania in Latin), the region where most of the species of the genus occur. SPECIES INCLUDED. — Aquitanobursa grateloupi (d’Orbigny, 1852) n. comb., Aq. amphitrites (Maury, 1917), n. comb., Aq. inaequicrenata (Cossmann & Peyrot, 1924) n. comb., Aq. morrisi (d’Archiac & Haimes, 1853) n. comb., Aq. tuberosa (Grateloup, 1833) n. comb. DIAGNOSIS. — Shell thick, moderately short-spired, varices slightly displaced, 6 primary cords on the convex part of the whorl, variceal and intervariceal P2 very reduced, axial ridges on the first whorl, parietal callus prominent. Posterior siphonal canal short, well-defined; outer lip with weak projection. COMPARISON. — With their deeply marked and angular varices and strongly expressed shoulder, Aquitanobursa n. gen. species resemble some deep-sea species of the Bursa s.l. genus such as Bursa quirihorai Beu, 1987 (Fig. 3H); however, Aquitanobursa n. gen. species are much strongly built, with a thicker shell. Atavistic features displayed by deep-sea gastropods are a well-known phenomenon, described recently for Muricidae by Merle (2012). The phylogenetic relationships of Aquitanobursa n. gen. with other Bursidae remain unclear; this genus is possibly a sister group to all Recent Bursidae, but that in unlikely considering that it occurs at the same time as Aspa marginata and Bursa corrugata. A fair assumption would be that it is the sister group to all bursids except Aspa and B. corrugata, but that would need a phylogenetic analysis for confirmation. Aquitanobursa grateloupi (d’Orbigny, 1852) n. comb. (Fig. 7A) Ranella gratteloupi [sic] d’Orbigny, 1852: 76. Ranella leucostoma – Grateloup 1833: 91, pl VI (not Lamarck, 1822). Ranella semigranosa – Grateloup 1845: pl. XXIX, fig. 6 (not Lamarck, 1822). urn:lsid:zoobank.org:act: 69CEE556-A552-4FB2-AE6A-2FCB4374C21D Apollon grateloupi – Cossmann & Peyrot 1924: 305, pl. XV, figs 42, 43. TYPE LOCALITY. — Lower Miocene of Aquitaine Basin, Bordeaux and Saint-Paul-lès-Dax, France. TYPE MATERIAL. — MNHN.F. A27211 (from Saint-Paullès-Dax) is here designated as lectotype. One paralectotype (MNHN.F. B27595). OTHER MATERIAL EXAMINED. — 13 specimens from Brongniart coll. from le Peloua, Burdigalian. GEOGRAPHIC AND STRATIGRAPHIC OCCURRENCE. — Bursa grateloupi is only known from the lower Miocene of the Aquitaine Basin. REMARKS Aquitanobursa grateloupi n. comb. was originally written gratteloupi. This name is obviously based on that of J.P.S. de Grateloup, and in accord with ICZN 32.5.1 the correct spelling is Aquitanobursa grateloupi n. comb.Published as part of Sanders, Malcolm T., Merle, Didier & Puillandre, Nicolas, 2019, A review of fossil Bursidae and their use for phylogeny calibration, pp. 247-265 in Geodiversitas 41 (5) on pages 256-258, DOI: 10.5252/geodiversitas2019v41a5, http://zenodo.org/record/369993
Aquitanobursa inaequicrenata Sanders & Merle & Puillandre 2019
No full textAquitanobursa inaequicrenata (Cossmann & Peyrot, 1924) n. comb. (Fig. 7B) Apollon inaequicrenatus Cossmann & Peyrot, 1924: 311 pl. 15, figs 44-45. Bursa (Bufonariella) inaequicrenata – Beu 1981: 258. Bursa inaequicrenata – Landau et al. 2004: 68; 2009: 76. TYPE LOCALITY. — Burdigalian of Le Peloua, near Saucats (Gironde), Aquitaine Basin, France. TYPE MATERIAL. — Apollon inaequicrenatus, holotype (MNHN.F. J06127 Cossmann coll.) from the Burdigalian of Le Peloua and one paratype (MNHN.F. J06128 Cossmann coll.). OTHER MATERIAL EXAMINED. — Five specimens from Brongniart coll., three from le Peloua, Burdigalian, one from Saint-Paul-les- Dax (Cabannes), Burdigalian, one from Saubrigues, Burdigalian; one specimen from Jussieu coll., from Mérignac, Burdigalian; one specimen from Lhomme coll., from Saucats, Aquitanian; all housed in the collection de Paléontologie, MNHN. GEOGRAPHIC AND STRATIGRAPHIC OCCURRENCE. — Only known from the Atlantic Aquitaine Basin of France (Aquitanian and Burdigalian).Published as part of Sanders, Malcolm T., Merle, Didier & Puillandre, Nicolas, 2019, A review of fossil Bursidae and their use for phylogeny calibration, pp. 247-265 in Geodiversitas 41 (5) on page 258, DOI: 10.5252/geodiversitas2019v41a5, http://zenodo.org/record/369993
Symbiont diversity is not involved in depth acclimation in the Mediterranean symbiotic sea whip Eunicella singularis.
No full textSymbiont diversity is not involved in depth acclimation in the Mediterranean symbiotic sea whip Eunicella singularis.
No full textConus (Kalloconus) helladicus Psarras & Koskeridou & Merle 2021, n. sp.
No full text<i>Conus</i> (<i>Kalloconus</i>) <i>helladicus</i> n. sp. <p>(Fig. 18; Table 8)</p> <p>urn:lsid:zoobank.org:act: 796AC37E-AC9E-48FE-89B6-2C11F282F6B5</p> <p> <i>Kalloconus hungaricus</i> – Landau <i>et al.</i> 2013: pl. 37, figs 9-10, pl. 38, fig. 1.</p> <p>DIAGNOSIS. — A medium-sized shell, with almost flat spire whorls and a colour pattern bearing wide flammulae on spire whorls, with spiral rows of dashes on last whorl.</p> <p> TYPE MATERIAL. — Holotype: AMPG(IV) 2660, Psalidha (Fig. 18B). Three paratypes, MNHN.F. A72636 to MNHN.F. A72638, Crete (Fig. 18A, C, D). TYPE LOCALITY. — Psalidha, 35°05’08.1”N, 24°57’46.0”E, Messara Basin, Tortonian, Crete, Greece. STRATIGRAPHIC RANGE. — Tortonian of Greece (Messara Basin, Crete). ETYMOLOGY. — As <i>Conus</i> (<i>Kalloconus</i>) <i>hungaricus</i> Hoernes & Auinger, 1879 was first found in Hungary, we propose <i>Conus</i> (<i>Kalloconus</i>) <i>helladicus</i> n. sp., a species found in Greece (<i>Hellas</i> in Greek).</p> <p> OTHER MATERIAL EXAMINED. — <b>Greece</b>. Tefeli: four specimens AMPG(IV) 2661-2662, 2676-2677; Crete: one specimen (MNHN.F. A72639). All of them display a colour patterns under UV light.</p> <p>SHELL DESCRIPTION</p> <p>Medium-sized, robust shells, with relatively low spired whorls. Early spire whorls coeloconoid. Last spire whorls, smooth, straight to concave, creating a low conical to flat outline. Suture impressed. Subsutural flexure shallow, weakly curved, moderately asymmetrical. Shoulder rounded, protruded, creating a bulky outline. Maximum diameter below shoulder. Last whorl straight. Aperture moderate, narrow near suture, straight. Apertural canal wide, fasciole twisted, demarcated from base and inner lip. There are two extreme forms. Form 1 consists of robust forms which are relatively wider in comparison to form 2 and have low angled spire whorls. Form 2 consists of relatively elongated forms with flat spire whorl. Intermediate forms also exist.</p> <p>DESCRIPTION OF COLOUR PATTERN</p> <p>The colour pattern consists of one layer of short and long, fluorescent, spiral dashes, arranged in evenly spaced spiral rows. The spire whorls display wide, fluorescent flammulae, with irregular boundaries on a non-fluorescent base colour. The flammulae do not connect with the colour pattern of the last whorl.</p> <p>REMARKS</p> <p>This species shows some variations in the relative diameter of its spire whorls (Table 8). The difference between the elongated and robust forms is not very variable. However intermediate forms (Fig. 18B, C) between both forms (Fig. 18A, D) point towards the existence of a single species.</p> <p> <i>Conus</i> (<i>Kalloconus</i>) <i>hungaricus</i> specimens sensu Landau <i>et al.</i> (2013: pl. 37, figs 9, 10, pl. 38, fig. 1) from the Karaman Basin (Turkey) are more likely to be <i>Conus</i> (<i>Kalloconus</i>) <i>helladicus</i> n. sp., because of their flat spire whorls and their identical colour pattern.</p> <p> <i>Conus</i> (<i>Kalloconus</i>) <i>hungaricus</i> Hoernes & Auinger, 1879 from Paratethys seems closely related to <i>Conus</i> (<i>Kalloconus</i>) <i>helladicus</i> n. sp., but the medium height, conical spire whorls and the subsutural flexure of <i>Conus</i> (<i>Kalloconus</i>) <i>hungaricus</i> (medium depth, moderately curved, seeHarzhauser & Landau 2016) are characters separating both species. <i>Conus</i> (<i>Kalloconus</i>) <i>tietzei</i> Hoernes & Auinger, 1879 differs in the relatively angulated shoulder and the medium depth of the subsutural flexure (Harzhauser & Landau 2016). <i>Conus</i> (<i>Kalloconus</i>) <i>gulemani</i> Erünal-Erentöz, 1958 bears a similar morphology and a colour pattern. The differences between both species exist on the spiral whorl height and the smoother shoulder of <i>Conus</i> (<i>Kalloconus</i>) <i>gulemani</i>. All these species seem to be very closely related, but the differential characters of <i>Conus</i> (<i>Kalloconus</i>) <i>helladicus</i> n. sp. caused us to consider the Greek material as a new species.</p>Published as part of <i>Psarras, Christos, Koskeridou, Efterpi & Merle, Didier, 2021, Late Miocene Conidae (Mollusca: Gastropoda) of Crete (Greece). Part 1: genera Conilithes Swainson, 1840 and Conus (Kalloconus) da Motta, 1991, pp. 1309-1339 in Geodiversitas 43 (24)</i> on page 1328, DOI: 10.5252/geodiversitas2021v43a24, <a href="http://zenodo.org/record/5764710">http://zenodo.org/record/5764710</a>
Grinioneis pachycosta Guernet & Huyghe & Lartaud & Merle & Emmanuel & Gély & Michel & Pilet 2012, n. sp.
No full textGrinioneis pachycosta n. sp. (Fig. 5M, N, P) Quadracythere sp. 2 – Blondeau M.-A. 1971: 37, 38, pl. 3, figs 11, 12. – Margerel et al. 1976: 23, pl. 5, figs 10, 11. ÉTYMOLOGIE. — Ornementation constituée de côtes épaisses. MATÉRIEL TYPE. — Holotype: une carapace (CGT 1243) déposée dans la collection du laboratoire de micropaléon - tologie de l’Université Pierre et Marie Curie à Paris. Paratypes: deux carapaces et deux valves (CGT 1243bis) déposées dans la même collection. DIMENSIONS (en mm). — Holotype, carapace, L = 0,71 ± 0,01, h = 0,39 ± 0,02, l = 0,30 ± 0,01. Paratypes: 1, carapace, L = 0,70 ± 0,01, h = 0,35 ± 0,01, l = 0,31 ± 0,01; 2, carapace, L = 0,68 ± 0,01, h = 0,32 ± 0,01, l = 0,30 ± 0,01; 3, valve droite, L = 0,71 ± 0,01, h = 0,38 ± 0,01; 4, valve droite, L = 0,68 ± 0,01, h = 0,35 ± 0,01. LOCALITÉ TYPE. — Grignon (Bassin de Paris, France). NIVEAU TYPE. — Lutétien moyen à Orbitolites complanatus (échantillon GRS7 de la coupe). RÉPARTITION STRATIGRAPHIQUE. — Lutétien du Bassin de Paris, Lutétien de la basse vallée de la Loire, Brackelsham beds, Fisher 21 du bassin du Hampshire (une valve observée par l’un d’entre nous dans l’échantillon S10 de Curry et al. 1977). DESCRIPTION Carapace subrectangulaire en vue latérale, tubercule oculaire bien individualisé mais de petite taille, côtes longitudinales au nombre d’une dizaine ou un peu moins et dont deux à la place, respectivement, des carènes dorsale et ventrale de Grinioneis paijenborchiana. Un sillon antéromarginal remplace les alvéoles du générotype. Caractères internes et dimorphisme sexuel prononcé, comme chez G. paijenborchiana REMARQUES Grinioneis pachycosta n. sp. se distingue des autres espèces congénériques par son ornementation constituée principalement de côtes longitudinales flexueuses, très épaisses, plus ou moins contiguës et anastomosées, notamment à l’avant des valves.Published as part of Guernet, Claude, Huyghe, Damien, Lartaud, Franck, Merle, Didier, Emmanuel, Laurent, Gély, Jean-Pierre, Michel, Florent & Pilet, Ophélie, 2012, Les Ostracodes de la falunière de Grignon (Lutétien du Bassin de Paris): implications stratigraphiques, pp. 909-959 in Geodiversitas 34 (4) on pages 933-934, DOI: 10.5252/g2012n4a12, http://zenodo.org/record/459749
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