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The Early Carboniferous progymnosperm Protopitys: new data on vegetative and fertile structures, and on its geographic and stratigraphic distribution
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We review progress made during the last 25 years in our understanding of the Protopityales, Early Carboniferous plants belonging to the extinct group of the progymnosperms. Recent studies support previous observations that the only genus of this order, Protopitys, included large arborescent plant with trunks up to 1 m in diameter. All branch orders had an oval eustele, secondary xylem with small rays and tracheid pitting ranging from circular bordered to scalariform bordered, and vascular traces to lateral appendages emitted in an alternate to subopposite distichous arrangement. Leaf morphology remains unknown. New material also confirms that fertile organs of Protopitys consist of branching systems bearing elongated sporangia terminally. Spores have a perispore and range in two size groups, which has been interpreted as a primitive stage of heterospory. The dense wood and fertile parts of Protopitys are comparable to those of the aneurophytalean progymnosperms of the Devonian, but Protopitys is distinct by its eustelic primary vascular system, and its affinities are still uncertain. The genus is now documented from at least nine localities in Europe, North America and Australia. Recent discoveries also indicate that it was present through the whole Mississippian, from the middle Tournaisian to the Serpukhovian.
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RBINS Staff Publications
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The extraordinary diversity of ants (Hymenoptera: Formicidae) of leaf litter in the Yangambi Biosphere Reserve, Tshopo, Democratic Republic of the Congo
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The Democratic Republic of the Congo has the highest diversity of ant species in the Afrotropical region, even though it remains largely understudied in the modern era. The aim of this study is to report on an inventory of the litter ants from the Yangambi Biosphere Reserve in the Tshopo Province, north of the Congo River. Three habitats (fallow, secondary forest and primary forest) were sampled at six localities. A total of 190 ant species belonging to 50 genera and 8 subfamilies, have been recorded in the Yangambi biosphere region. Besides, 96 species were added to Tshopo Province, bringing the total to 306, a 44% increase; and we added 55 species to the already diverse Democratic Republic of the Congo, raising the total record to 791 species, a 7% increase. At least 10% of the collected species are new to science.
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RBINS Staff Publications 2025
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The fluorescent minerals in the Belgian Mineral Collection of the Royal Belgian Institute of Natural Sciences.
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RBINS Staff Publications
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The fossil mammals of Spy.
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The large faunal sample from Spy, a Belgian cave site famous for its Neandertal remains, is for the first time studied in detail. Some 11,600 bones were examined. A wide spectrum of Pleistocene species is present. Horse, cave hyena, mammoth, woolly rhinoceros and reindeer are the primary taxa. Hyena scavenging activities are indicated by the gnawed mammoth and rhinoceros postcranial bones and cervid antlers. Bears used the cave as a hibernation den evidenced by remains of cubs, and of female and male adult bears. Indications of human manipulation (cut marks, ochre traces, worked bone/tooth) occur especially on remains from foxes, mammoth and deer. The age profile of the mammoth is dominated by calves. This selective mortality suggests that they were hunted by prehistoric people. AMS dates range from c. 44,400 BP to c. 25,700 BP. The Spy bone assemblage therefore accumulated through a series of agents over a long period of the Pleniglacial.
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The genus Agnocoris in Belgium (Hemiptera: Miridae)
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RBINS collections by external author(s)
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The genus Biernatella BaliĆski, 1977 (Brachiopoda) from the late Frasnian of Belgium
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RBINS Staff Publications
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The genus Birdantis Stal in Australia (Hemiptera: Fulgoromorpha: Fulgoridae)
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RBINS Staff Publications
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The genus Diplommatina Benson, 1849 (Gastropoda: Caenogastropoda: Diplommatinidae) in Nepal, with the description of seven new species
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RBINS Staff Publications 2017
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The genus Iowatrypa Copper, 1973 (Brachiopoda) in the Les Valisettes Formation (late Frasnian of the Philippeville Anticlinorium, southern Belgium)
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RBINS Staff Publications
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The good, the bad and the ugly: Framing debates on Nature in a One Health community.
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RBINS Staff Publications 2019