Geological explorations in Central Borneo (1893-94) : Borneo expedition. english rev. ed. with an appendix on fossil radiolaria of Central-Borneo ([Reprod.]) / by Dr. G. A. F. Molengraaff,... ; by Dr. G. J. Hinde

Comprend : Description of fossil radiolaria from the rocks of Central Borneo, obtained by prof. Dr. G. A. F. Molengraaff in the dutch exploring expedition of 1893-94

Notes sur la géologie et la paléontologie du Miocène de Lisbonne. XXI Primeira caracterização de dinoflagelados dos níveis mais baixos da série miocénica de Lisboa

This is the first report on Dinoflagellata from lowermost Miocene beds in Portugal (Tagus basin, Lisbon region, exposure at Benfica). Some general data about Dinoflagellata are presented. Descriptions are provided for some forms: Gonyaulacysta tenuitabulata, Spiniferites ramosus, Achomosphaera sp., Hystrichokolpoma rigaudae, Homotriblium cf. pallidum, Cordosphaeridium sp, and Lingulodinium machaerophorum. Lithostratigraphical study of an important section along Circular highway at Benfica has shown that there is a hitherto unknown sedimentary cycle in Lisbon's lowermost Miocene (upper Oligocene?). Pollen and Ostracoda point out to an Lower Aquitanian or even Upper Chattian age for the first Neogene marine transgression in Portugal, previously considered as Upper Aquitanian or Lower Burdigalian.

Notes sur la géologie et la paleontology du Miocène de Lisbonne. XXII - Une Espèce nouvelle Pokornyella Lusitanica (Ostrocoda), dans le Miocène Inférieur du bassin du Tage

A new species, Pokornyella lusitanica (Ostracoda), from the Lower Miocene (Aquitanian) of the Lisbon area, is described. Some palaeoecological data are presented.

Notes sur la géologie et la paleontology du Miocène de Lisbonne

This note deals with the stratigraphical and paleontological study of the Palença section on the southern bank of the river Tagus, Portugal, and specially with its coccolithophorids. Three main lithostratigraphical units may be recognized: the lowest one does correspond to the upper part of COTTER's division II, the intermediate one to divisions III and IV-a, the third corresponding to pratically the whole division IV-b, However other and higher levels are also represented. Higher beds are also represented in the same sections; they are less well exposed and were not studied in detail. Caracterisation of biozones on the basis of Coccoliths so far found at Palença section is difficultsince MARTINI's zones have been defined mainly by forms of Discoaster and other genera that are wanting. However we can recognize that the richest assemblage (from beds 17-18, the uppermost layers of blue clays IV-a) may correspond to NN4. This is not in opposition to the results of the study of planctonic foraminifera, that are characteristic of BLOW's N7. Coccoliths from lower beds do not allow at present any valid comparisons.

Notes sur la géologie et la paleontology du Miocène de Lisbonne; (XX) les plus anciens mastodontes tetralophodontes (Langhien inférieur Vb), évolution et remarques sur la tetralophodontie

This study deals with mastodont teeth found near Lisbon in Lower Langhian (lower Middle Miocene) fluviatile, feldspathic sands (Vb division). Conclusions are as follows: 1. Tetralophodont molars (even if at a still primitive stade of the tetralophodont condition) do exist at least since lower Langhian times, and not only since late Middle Miocene as was previously known. 2. Tri- and tetralophodont structures may (and indeed do) coexist in the same individual: such examples do not correspond to transitional forms, but instead to a mosaic of juxtaposed characters (however this does not mean there are no transitional forms in other instances). 3. So these structures coexisted in a population not yet geneticaliy separated beyond fertile cross-breeding, i.e. beyond species'level. 4. Origin of the tetralophodont molar was due to some mutation (s). but without crossing species, limits and even more genus' ones. 5. At this times probably soon after the first appearance of tetralophodont mutants, animals with such characters were a small but signifiant minority among the population (17% if account is taken on D4's: only 2% after M2's). 6. There was not then any direct and clear correlation between number of lophs (transversal crests) and tooth size, even if the increase of such number goes along with length's increase. 7. Dimensions (length in special) in tetralophodont teeth tend to exceed those in «normal» trilophodont teeth, this being particularly clear in D4, even if there is no clear distinction: the situation is quite the same, maybe less marked, with the M2. 8. According to the preceding conclusions there are no reasons to segregate different taxa among such mastodont population on the grounds of the presence in D4, M1 and M2 of 3 or 4 crests (this character being regarded as diagnostic of the genus Tetralophodon). 9. On the contrary, if any natural (in biological sense) classification is disregarded and a morphological parataxonomy is adopted there should be considered both Gomphotherium angustidens and Tetralophodon sp.: however this is absolutely not our opinion.

Notes sur la géologie et la paleontology du Miocène de Lisbonne; (XXII) une espèce nouvelle, Pokornyella lus/tan/ca (Ostracoda), dans le Miocène inférieur du bassin du Tage

A new species, Pokornyella lusitanica (Ostracoda), from the Lower Miocene (Aquitanian) of the Lisbon area, is described. Some palaeoecological data are presented.

Annales des sciences naturelles : comprenant La physiologie animale et végétale, l'anatomie comparée des deux règnes, la zoologie, la botanique, la minéralogie et la géologie

t. 26 (1832)

Annales des sciences naturelles : comprenant La physiologie animale et végétale, l'anatomie comparée des deux règnes, la zoologie, la botanique, la minéralogie et la géologie

t. 24 (1831)

Annales des sciences naturelles : comprenant La physiologie animale et végétale, l'anatomie comparée des deux règnes, la zoologie, la botanique, la minéralogie et la géologie

t. 23 (1831)

Annales des sciences naturelles : comprenant La physiologie animale et végétale, l'anatomie comparée des deux règnes, la zoologie, la botanique, la minéralogie et la géologie

t. 25 (1832)

Annales des sciences naturelles : comprenant La physiologie animale et végétale, l'anatomie comparée des deux règnes, la zoologie, la botanique, la minéralogie et la géologie

t. 8 (1826)

Annales des sciences naturelles : comprenant La physiologie animale et végétale, l'anatomie comparée des deux règnes, la zoologie, la botanique, la minéralogie et la géologie

t. 11 (1827)

Annales des sciences naturelles : comprenant La physiologie animale et végétale, l'anatomie comparée des deux règnes, la zoologie, la botanique, la minéralogie et la géologie

t. 9 (1826)