Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
45
datasets available to search
ShareScore release 0.9.0
Dataset results
45 results for “Coprolite”
Avizo reconstruction of Bone-cracking Borophagus coprolite lacm:vp:158710
<p>Borophagine canids have long been hypothesized to be North American ecological ‘avatars’ of living hyenas in Africa and Asia, but direct fossil evidence of hyena-like bone consumption is hitherto unknown. We report rare coprolites (fossilized feces) of Borophagus parvus from the late Miocene of California and, for the first time, describe unambiguous evidence that these predatory canids ingested large amounts of bone. Surface morphology, micro-CT analyses, and contextual information reveal (1) droppings in concentrations signifying scent-marking behavior, similar to latrines used by living social carnivorans; (2) routine consumption of skeletons; (3) undissolved bones inside coprolites indicating gastrointestinal similarity to modern striped and brown hyenas; (4) B. parvus body weight of ~24 kg, reaching sizes of obligatory large-prey hunters; and (5) prey size ranging ~35–100 kg. This combination of traits suggests that bone-crushing Borophagus potentially hunted in collaborative social groups and occupied a niche no longer present in North American ecosystems.</p>
Avizo reconstruction of Bone-cracking Borophagus coprolite lacm:vp:158709
<p>Borophagine canids have long been hypothesized to be North American ecological ‘avatars’ of living hyenas in Africa and Asia, but direct fossil evidence of hyena-like bone consumption is hitherto unknown. We report rare coprolites (fossilized feces) of Borophagus parvus from the late Miocene of California and, for the first time, describe unambiguous evidence that these predatory canids ingested large amounts of bone. Surface morphology, micro-CT analyses, and contextual information reveal (1) droppings in concentrations signifying scent-marking behavior, similar to latrines used by living social carnivorans; (2) routine consumption of skeletons; (3) undissolved bones inside coprolites indicating gastrointestinal similarity to modern striped and brown hyenas; (4) B. parvus body weight of ~24 kg, reaching sizes of obligatory large-prey hunters; and (5) prey size ranging ~35–100 kg. This combination of traits suggests that bone-crushing Borophagus potentially hunted in collaborative social groups and occupied a niche no longer present in North American ecosystems.</p>
Avizo reconstruction of Bone-cracking Borophagus coprolite lacm:vp:158708
<p>Borophagine canids have long been hypothesized to be North American ecological ‘avatars’ of living hyenas in Africa and Asia, but direct fossil evidence of hyena-like bone consumption is hitherto unknown. We report rare coprolites (fossilized feces) of Borophagus parvus from the late Miocene of California and, for the first time, describe unambiguous evidence that these predatory canids ingested large amounts of bone. Surface morphology, micro-CT analyses, and contextual information reveal (1) droppings in concentrations signifying scent-marking behavior, similar to latrines used by living social carnivorans; (2) routine consumption of skeletons; (3) undissolved bones inside coprolites indicating gastrointestinal similarity to modern striped and brown hyenas; (4) B. parvus body weight of ~24 kg, reaching sizes of obligatory large-prey hunters; and (5) prey size ranging ~35–100 kg. This combination of traits suggests that bone-crushing Borophagus potentially hunted in collaborative social groups and occupied a niche no longer present in North American ecosystems.</p>
Avizo reconstruction of Bone-cracking Borophagus coprolite lacm:vp:158707
<p>Borophagine canids have long been hypothesized to be North American ecological ‘avatars’ of living hyenas in Africa and Asia, but direct fossil evidence of hyena-like bone consumption is hitherto unknown. We report rare coprolites (fossilized feces) of Borophagus parvus from the late Miocene of California and, for the first time, describe unambiguous evidence that these predatory canids ingested large amounts of bone. Surface morphology, micro-CT analyses, and contextual information reveal (1) droppings in concentrations signifying scent-marking behavior, similar to latrines used by living social carnivorans; (2) routine consumption of skeletons; (3) undissolved bones inside coprolites indicating gastrointestinal similarity to modern striped and brown hyenas; (4) B. parvus body weight of ~24 kg, reaching sizes of obligatory large-prey hunters; and (5) prey size ranging ~35–100 kg. This combination of traits suggests that bone-crushing Borophagus potentially hunted in collaborative social groups and occupied a niche no longer present in North American ecosystems.</p>
Avizo reconstruction of Bone-cracking Borophagus coprolite lacm:vp:158706
<p>Borophagine canids have long been hypothesized to be North American ecological ‘avatars’ of living hyenas in Africa and Asia, but direct fossil evidence of hyena-like bone consumption is hitherto unknown. We report rare coprolites (fossilized feces) of Borophagus parvus from the late Miocene of California and, for the first time, describe unambiguous evidence that these predatory canids ingested large amounts of bone. Surface morphology, micro-CT analyses, and contextual information reveal (1) droppings in concentrations signifying scent-marking behavior, similar to latrines used by living social carnivorans; (2) routine consumption of skeletons; (3) undissolved bones inside coprolites indicating gastrointestinal similarity to modern striped and brown hyenas; (4) B. parvus body weight of ~24 kg, reaching sizes of obligatory large-prey hunters; and (5) prey size ranging ~35–100 kg. This combination of traits suggests that bone-crushing Borophagus potentially hunted in collaborative social groups and occupied a niche no longer present in North American ecosystems.</p>
Avizo reconstruction of Bone-cracking Borophagus coprolite lacm:vp:158712
<p>Borophagine canids have long been hypothesized to be North American ecological ‘avatars’ of living hyenas in Africa and Asia, but direct fossil evidence of hyena-like bone consumption is hitherto unknown. We report rare coprolites (fossilized feces) of Borophagus parvus from the late Miocene of California and, for the first time, describe unambiguous evidence that these predatory canids ingested large amounts of bone. Surface morphology, micro-CT analyses, and contextual information reveal (1) droppings in concentrations signifying scent-marking behavior, similar to latrines used by living social carnivorans; (2) routine consumption of skeletons; (3) undissolved bones inside coprolites indicating gastrointestinal similarity to modern striped and brown hyenas; (4) B. parvus body weight of ~24 kg, reaching sizes of obligatory large-prey hunters; and (5) prey size ranging ~35–100 kg. This combination of traits suggests that bone-crushing Borophagus potentially hunted in collaborative social groups and occupied a niche no longer present in North American ecosystems.</p>
Avizo reconstruction of Bone-cracking Borophagus coprolite lacm:vp:158711
<p>Borophagine canids have long been hypothesized to be North American ecological ‘avatars’ of living hyenas in Africa and Asia, but direct fossil evidence of hyena-like bone consumption is hitherto unknown. We report rare coprolites (fossilized feces) of Borophagus parvus from the late Miocene of California and, for the first time, describe unambiguous evidence that these predatory canids ingested large amounts of bone. Surface morphology, micro-CT analyses, and contextual information reveal (1) droppings in concentrations signifying scent-marking behavior, similar to latrines used by living social carnivorans; (2) routine consumption of skeletons; (3) undissolved bones inside coprolites indicating gastrointestinal similarity to modern striped and brown hyenas; (4) B. parvus body weight of ~24 kg, reaching sizes of obligatory large-prey hunters; and (5) prey size ranging ~35–100 kg. This combination of traits suggests that bone-crushing Borophagus potentially hunted in collaborative social groups and occupied a niche no longer present in North American ecosystems.</p>
Avizo reconstruction of Bone-cracking Borophagus coprolite lacm:vp:158716
<p>Borophagine canids have long been hypothesized to be North American ecological ‘avatars’ of living hyenas in Africa and Asia, but direct fossil evidence of hyena-like bone consumption is hitherto unknown. We report rare coprolites (fossilized feces) of Borophagus parvus from the late Miocene of California and, for the first time, describe unambiguous evidence that these predatory canids ingested large amounts of bone. Surface morphology, micro-CT analyses, and contextual information reveal (1) droppings in concentrations signifying scent-marking behavior, similar to latrines used by living social carnivorans; (2) routine consumption of skeletons; (3) undissolved bones inside coprolites indicating gastrointestinal similarity to modern striped and brown hyenas; (4) B. parvus body weight of ~24 kg, reaching sizes of obligatory large-prey hunters; and (5) prey size ranging ~35–100 kg. This combination of traits suggests that bone-crushing Borophagus potentially hunted in collaborative social groups and occupied a niche no longer present in North American ecosystems.</p>
Avizo reconstruction of Bone-cracking Borophagus coprolite lacm:vp:158713
<p>Borophagine canids have long been hypothesized to be North American ecological ‘avatars’ of living hyenas in Africa and Asia, but direct fossil evidence of hyena-like bone consumption is hitherto unknown. We report rare coprolites (fossilized feces) of Borophagus parvus from the late Miocene of California and, for the first time, describe unambiguous evidence that these predatory canids ingested large amounts of bone. Surface morphology, micro-CT analyses, and contextual information reveal (1) droppings in concentrations signifying scent-marking behavior, similar to latrines used by living social carnivorans; (2) routine consumption of skeletons; (3) undissolved bones inside coprolites indicating gastrointestinal similarity to modern striped and brown hyenas; (4) B. parvus body weight of ~24 kg, reaching sizes of obligatory large-prey hunters; and (5) prey size ranging ~35–100 kg. This combination of traits suggests that bone-crushing Borophagus potentially hunted in collaborative social groups and occupied a niche no longer present in North American ecosystems.</p>
Avizo reconstruction of Bone-cracking Borophagus coprolite lacm:vp:158717
<p>Borophagine canids have long been hypothesized to be North American ecological ‘avatars’ of living hyenas in Africa and Asia, but direct fossil evidence of hyena-like bone consumption is hitherto unknown. We report rare coprolites (fossilized feces) of Borophagus parvus from the late Miocene of California and, for the first time, describe unambiguous evidence that these predatory canids ingested large amounts of bone. Surface morphology, micro-CT analyses, and contextual information reveal (1) droppings in concentrations signifying scent-marking behavior, similar to latrines used by living social carnivorans; (2) routine consumption of skeletons; (3) undissolved bones inside coprolites indicating gastrointestinal similarity to modern striped and brown hyenas; (4) B. parvus body weight of ~24 kg, reaching sizes of obligatory large-prey hunters; and (5) prey size ranging ~35–100 kg. This combination of traits suggests that bone-crushing Borophagus potentially hunted in collaborative social groups and occupied a niche no longer present in North American ecosystems.</p>
Avizo reconstruction of Bone-cracking Borophagus coprolite lacm:vp:158714
<p>Borophagine canids have long been hypothesized to be North American ecological ‘avatars’ of living hyenas in Africa and Asia, but direct fossil evidence of hyena-like bone consumption is hitherto unknown. We report rare coprolites (fossilized feces) of Borophagus parvus from the late Miocene of California and, for the first time, describe unambiguous evidence that these predatory canids ingested large amounts of bone. Surface morphology, micro-CT analyses, and contextual information reveal (1) droppings in concentrations signifying scent-marking behavior, similar to latrines used by living social carnivorans; (2) routine consumption of skeletons; (3) undissolved bones inside coprolites indicating gastrointestinal similarity to modern striped and brown hyenas; (4) B. parvus body weight of ~24 kg, reaching sizes of obligatory large-prey hunters; and (5) prey size ranging ~35–100 kg. This combination of traits suggests that bone-crushing Borophagus potentially hunted in collaborative social groups and occupied a niche no longer present in North American ecosystems.</p>
Figure 3 in A king-sized theropod coprolite
Figure 3 Photomicrograph of a thin section of the theropod coprolite, showing associated bone fragments that indicate digestive degradation. Digestive acids and enzymes probably infiltrated the interior of the bone through vascular canals. Scale bar, 100 m.
Fig. 6 in Calcium phosphate preservation of faecal bacterial negative moulds in hyaena coprolites
Fig. 6. SEM images of coprolites of the hyaenid Lycyaena chaeretis (Gaudry, 1861) from La Roma 2 (Upper Miocene, Spain). A. Spherical and elongated voids present in the fine calcium phosphate precipitated around the microspherulites (white arrows) (Zone X) (RO-2008-117). B, C. Small voids resembling rod-shaped bacteria (white arrows), differing from the microspherulites (black arrows) in their smaller size (RO-2008-3). D. TEM of an ultrathin section, showing negative moulds resembling rod-like bacteria (white arrows) in the fine calcium phosphate material (RO-2008-117).
Fig. 4 in Calcium phosphate preservation of faecal bacterial negative moulds in hyaena coprolites
Fig. 4. SEM images of coprolites of the hyaenid Lycyaena chaeretis (Gaudry, 1861) from La Roma 2 (Upper Miocene, Spain). A. Calcite crystals inside a void likely produced by gas arising from digestive processes (RO-SSC). B. Matrix composed of microspherulites 1–3 μm in diameter (RO-SSC). C. Polished sections examined in backscattered detection mode, showing the thin-walled structure of the microspherulites (white arrows) (RO-2008-117). D. Microspherulites embedded in a fine-grained calcium phosphate precipitate; the brighter zones indicate areas enriched in Na and Cl (white arrows) (RO-2008-117).
Fig. 1. A in Calcium phosphate preservation of faecal bacterial negative moulds in hyaena coprolites
Fig. 1. A. Location of the La Roma 2 site (modified from van Dam et al. 2001). B. General stratigraphic section of the La Roma 2 site (modified from Alcalá 1994).
Fig. 3 in Calcium phosphate preservation of faecal bacterial negative moulds in hyaena coprolites
Fig. 3. Photomicrographs showing thin sections of a coprolite (RO-2008-9a) of the hyaenid Lycyaena chaeretis (Gaudry, 1861) from La Roma 2 (Upper Miocene, Spain). A. Section of the coprolite. B–E. Homogeneous zone (Zone X). B. Quartz inclusion, probably introduced from the surrounding sediment. C. A void, probably produced by gas, in the homogeneous zone (Zone X), with no filling and showing no corroded margins. D. Limit between the homogeneous zone (Zone X) (right) and the central hole (left) (Zone Z) (the rounded shapes are artefacts caused by the consolidation of the sample). E. Thin outer rim of the homogeneous zone (Zone X), showing a more compact phosphatic margin (orange, on the left). F–H. Heterogeneous zone (Zone Y). F. Bone fragment altered by digestive acids in the heterogeneous zone (Zone Y), showing the presence of iron in the surrounding phosphatic matrix. G. Voids and cracks within the heterogeneous zone (Zone Y), showing margin corrosion and iron precipitation partially replacing the original phosphatic matrix. H. Calcite-filled voids and shrinkage cracks in the heterogeneous zone (Zone Y).
Fig. 2. X in Calcium phosphate preservation of faecal bacterial negative moulds in hyaena coprolites
Fig. 2. X-Ray diffractograms of seven coprolites of the hyaenid Lycyaena chaeretis (Gaudry, 1861) from the locality of La Roma 2 (Upper Miocene, Spain). Image generated from XPowder Ver. 2004.04.46 PRO.
Figure 2 in Exceptionally preserved beetles in a Triassic coprolite of putative dinosauriform origin
Figure 2. Scatterplots showing the size distribution of the elytra (A) Elytra from ZPAL AbIII/3520. (B) The elytra from ZPAL AbIII/3520 compared to those of ZPAL AbIII/3402 (see Discussion and Qvarnström et al.19). Note that both coprolites contain many similar-sized elytra attributed to Triamyxa coprolithica but also a few larger ones.
Figure 1 in Exceptionally preserved beetles in a Triassic coprolite of putative dinosauriform origin
Figure 1. Contents of coprolite fragment ZPAL AbIII/3520 (A) The coprolite rendered semi-transparent with inclusions, such as beetle remains and fibrous networks, representing fungal colonies or algae visible. Top corner: silhouette of Silesaurus opolensis, the most probable coprolite producer. (B–D) The holotype specimen of Triamyxa coprolithica in ventral (B), lateral (C), and dorsal (D) views. (E and F) The second complete specimen in ventral (E) and anterior (F) views. Individual ventrites are indicated by roman numerals. (G) Triamyxa coprolithica preserved in various degrees of disarticulation. (H) An isolated head and two elytra that do not belong to Triamyxa coprolithica but to slightly larger beetles that were also ingested by the coprolite producer. (I) Examples of individual remains of Triamyxa coprolithica (meso- and metaventrite, head, head attached to pronotum, and three pronota). (J) Two of numerous elytra of similar size and morphology attributed to T. coprolithica. (K) Fibrous structures interpreted as fungi or algae. (L) Apossible decomposed wood fragment. Color coding: blue, eyes; purple, antennae; light purple, legs. Abbreviations: abd, abdomen; ant, antenna; cox, coxa; ey, eye; fem, femur; hd, head; lgs, legs; pp, propleuron; thx, thorax; tib, tibia; troch, trochanter; trs, tarsi; ventr, ventrites. See also Figure S1.
Figure 4 in Exceptionally preserved beetles in a Triassic coprolite of putative dinosauriform origin
Figure 4. Ventral view of near-complete specimens of Triamyxa coprolothica gen. and sp. nov. showing the variation in the number of abdominal ventrites The specimens are color coded based on the most probable abdominal segmentation, which is either five (C–G and I) or six (A, B, and H). However, the preservation of some specimens (C, E, G, and I) makes it difficult to tell whether they have five or actually six ventrites.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.