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Avian foraging on an intertidal mudflat succession in the Eocene Tanjung Formation, Asem Asem Basin, South Kalimantan, Indonesia Borneo
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Moderately diverse trace fossil assemblages occur in the Eocene Tambak Member of the Tanjung Formation, in the Asem Asem Basin on the southern coast of South Kalimantan. These assemblages are fundamental for establishing depositional models and paleoecological reconstructions for southern Kalimantan during the Eocene and contribute substantially to the otherwise poorly documented fossil record of birds in Island Southeast Asia. Extensive forest cover has precluded previous ichnological analyses in the study area. The traces discussed herein were discovered in newly exposed outcrops in the basal part of the Wahana Baratama coal mine, on the Kalimantan coast of the Java Sea. The Tambak assemblage includes both vertebrate and invertebrate trace fossils. Invertebrate traces observed in this study include Arenicolites, Cylindrichnus, Diplocraterion, Palaeophycus, Planolites, Psilonichnus, Siphonichnus, Skolithos, Thalassinoides, Taenidium, and Trichichnus. Vertebrate-derived trace fossils include nine avian footprint ichnogenera (Aquatilavipes, Archaeornithipus, Ardeipeda, Aviadactyla, cf. Avipeda, cf. Fuscinapeda, cf. Ludicharadripodiscus, and two unnamed forms). A variety of shallow, circular to cylindrical pits and horizontal, singular to paired horizontal grooves preserved in concave epirelief are interpreted as avian feeding and foraging traces. These traces likely represent the activities of small to medium-sized shorebirds and waterbirds like those of living sandpipers, plovers, cranes, egrets, and herons. The pits and grooves are interpreted as foraging traces and occur interspersed with both avian trackways and invertebrate traces. The trace fossils occur preferentially in heterolithic successions with lenticular to flaser bedding, herringbone ripple stratification, and common reactivation surfaces, indicating that the study interval was deposited in a tidally influenced setting. Avian trackways, desiccation cracks, and common rooting indicate that the succession was prone to both subaqueous inundation and periodic subaerial exposure. We infer that the Tambak mixed vertebrate-invertebrate trace fossil association occurred on channel-margin intertidal flats in a tide-influenced estuarine setting. The occurrence of a moderately diverse avian footprint and foraging trace assemblage in the Tambak Member of the Tanjung Formation illustrates that shorebirds and waterbirds have been using wetlands in what is now Kalimantan for their food resources since at least the late Eocene.
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RBINS Staff Publications 2024
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Type material of South-American land snails (Mollusca: Gastropoda) of Wladyslaw Emanuel Lubomirski collection deposited in the Museum and Institute of zoology, Warsaw, Poland
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RBINS Staff Publications 2022
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The Late Gravettian Site of Kostënki 21 Layer III, Russia: a Chronocultural Reassessment Based on a New Interpretation of the Significance of Intra-site Spatial Patterning
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RBINS Staff Publications 2019
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Self-domestication or human control? The Upper Palaeolithic domestication of the wolf
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RBINS Staff Publications 2018
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Ancient RNA from Late Pleistocene permafrost and historical canids shows tissue-specific transcriptome survival
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While sequencing ancient DNA (aDNA) from archaeological material is now commonplace, very few attempts to sequence ancient transcriptomes have been made, even from typically stable deposition environments such as permafrost. This is presumably due to assumptions that RNA completely degrades relatively quickly, particularly when dealing with autolytic, nuclease-rich mammalian tissues. However, given the recent successes in sequencing ancient RNA (aRNA) from various sources including plants and animals, we suspect that these assumptions may be incorrect or exaggerated. To challenge the underlying dogma, we generated shotgun RNA data from sources that might normally be dismissed for such study. Here, we present aRNA data generated from two historical wolf skins, and permafrost-preserved liver tissue of a 14,300-year-old Pleistocene canid. Not only is the latter the oldest RNA ever to be sequenced, but it also shows evidence of biologically relevant tissue specificity and close similarity to equivalent data derived from modern-day control tissue. Other hallmarks of RNA sequencing (RNA-seq) data such as exon-exon junction presence and high endogenous ribosomal RNA (rRNA) content confirms our data’s authenticity. By performing independent technical library replicates using two high-throughput sequencing platforms, we show not only that aRNA can survive for extended periods in mammalian tissues but also that it has potential for tissue identification. aRNA also has possible further potential, such as identifying in vivo genome activity and adaptation, when sequenced using this technology.
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RBINS Staff Publications 2019
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Intermediate gastropod hosts of major feline cardiopulmonary nematodes in an area of wildcat and domestic cat sympatry in Greece
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RBINS Staff Publications 2020
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Rediscovery, range extension, phylogenetic relationships and updated diagnosis of the Ornate Long-tailed Lizard Latastia ornata Monard, 1940 (Squamata: Lacertidae)
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RBINS Staff Publications 2023 OA
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Preference for fish in a Neolithic hunter-gatherer community of the upper Tigris, elucidated by amino acid δ15N analysis
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We report here the stable nitrogen isotope composition (d15N) of individual amino acids and the d15N and d13C content of collagen from human and faunal remains collected from Hasankeyf H€oyük, an early Neolithic site in the upper Tigris valley. Based on the d15N of collagen only, the contributions of freshwater resources to the diet of the hunter-gatherers were difficult to clearly identify relative to terrestrial resources. However, analysis of the nitrogen isotope composition of individual amino acids enabled the identification of minor contributions from freshwater resources to the diet in a community primarily dependent on terrestrial resources. Individual variability suggested that some individuals at Hasankeyf H€oyük used freshwater resources, whereas others probably depended primarily on terrestrial food resources. The importance of freshwater resources as food for this hunter-gatherer community was variable among groups and depended on burial location and time of burial.
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RBINS Staff Publications 2017
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More animal burials from the Predynastic elite cemetery of Hierakonpolis (Upper Egypt): the 2008 season
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Three animal burials from the Predynastic elite cemetery HK6 at Hierakonpolis are described. Recent excavations at this site have revealed large tomb compounds and a precinct of funerary temples dating to the Naqada IC–IIB (ca. 3800–3600 BC), all of which included animal burials. Shallow pits discovered by the enclosure wall of the cemetery and near the northeast corner of the temple precinct yielded the articulated skeletons of nine dogs, a baboon and six cats. A description of the finds is provided and special attention is given to the size reconstruction and possible breeds of the dogs, the pathology seen on the baboon skeleton and its interpretation in terms of conditions of keeping, and the status of the cats (wild, tamed or domestic).
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RBINS Staff Publications 2017
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An unusual cattle burial at Dayr al-Barshā (Late Period, Middle Egypt)
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During excavations in the desert plain near Dayr al-Barshā in Middle Egypt, a circular pit filled with cattle bones was found. The pit, with a diameter of about 1.5m, contained the almost complete skeletons of 15 Egyptian Longhorns, dated to 410–360 cal BC. The material was in a remarkably good state of preservation, but few elements were found in articulation. Apart from the more-or-less complete skeletons, some fragmentary remains of at least three additional individuals have been collected. The age at death, sex and size of the animals has been established and the pathologies and traces on the bones have been recorded. No parallels are known for the cattle burial at Dayr al-Barshā. The animals were probably kept in the context of a local temple economy. In line with common practices at that time, their bodies were macerated and the obtained skeletons ceremonially buried later on.
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RBINS Staff Publications 2017