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.
462
datasets available to search
ShareScore release 0.9.0
Dataset results
462 results for “Calcarea”
FIG. 33 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 33. — Diagram of the Amphoriscidae type of inarticulate choanoskeleton (Amphoriscus or Leucilla). Abbreviations: a, atrium; as, atrial spicules; ss, subatrial spicules; st, subcortical tetractines; cx, cortex.
FIG. 30 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 30. — Diagram of a transverse section through the wall of Syconessa syconiformis (Borojevic, 1967a). Abbreviations: a, atrium; as, atrial skeleton; ss, subatrial spicule; ps, parasagittal spicules; dc, distal cones (from Borojevic 1967b). Scale bar: 50 µm.
FIG. 29 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 29. — Diagram of one parasagittal (p) and two sagittal (s) spicules in Heteropiidae. The arrow indicates the unpaired angle, and u indicates the unpaired actine. The double line represents the cortex (cx). Note that the two paired actines of the parasagittal spicules are of quite different sizes, and they are always in a subcortical position with the longer paired actine directed inwards.
FIG. 28 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 28. — Diagram of a transverse section through the wall of Anamixilla torresi Poléjaeff, 1883. Abbreviations: a, atrium; as, atrial skeleton; ss, subatrial spicule; ch, choanosome; cx, cortex (from Poléjaeff 1883).
FIG. 8 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 8. — Diagram of Sycon type of sponge wall organization. Abbreviations: ps, pinacoderm and the skeletogenous layer; ch, choanoderm; a, atrium; dc, distal cones; ic, inhalant canals. The arrow shows the direction of water flow.
FIG. 23 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 23. — Leucandrilla organization. Section made on the type specimen from Jenkin (1908b) (BMNH 1908.9.25.59). The cortex contains tetractines (t), with the apical actines turned into the choanoderm. Scale bar: 150 µm.
FIG. 24 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 24. — Diagram of the Dermatreton type of sponge wall organization. Abbreviations: ch, choanoderm; ic, inhalant cavities; cx, cortex.
FIG. 18 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 18. — Diagram of a transverse section through the wall of Grantia socialis Borojevic, 1967. Abbreviations: a, atrium; as, atrial skeleton composed of tangential triactines and tetractines; ss, subatrial spicules; ar, articulate choanosomal skeleton; cx, cortex (from Borojevic 1967a). Scale bar: 100 µm.
FIG. 27 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 27. — Leucascandra organization. Transverse section through the sponge wall; the choanoskeleton is composed of only subatrial triactines and the atrial skeleton contains triactines and tetractines. Abbreviations: a, atrial skeleton; ch, choanoskeleton. Scale bar: 40 µm.
FIG. 13 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 13. — Diagram of the subatrial region of heterocoel Leucosoleniida. Abbreviations: a, atrium; as, atrial skeleton, composed of triactines and tetractines tangential to the atrial surface; ap, apopyle of the radial choanocyte chamber; ss, subatrial spicules; ar, articulate choanosomal skeleton; ch, choanoderm.
FIG. 2 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 2. — Fertilization in Leucillla. Transmission electron microscopy (TEM). Abbreviations: cc, choanocyte chamber; o, osculum; sp, spicule. Scale bar: 1 µm. (Courtesy Dr M.-F. Gallissian).
FIG. 3 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 3. — Diagram of the stomoblastula showing the phenomenon of inversion; A, fertilization; B, stomoblastula with the flagellum of the flagellated cells inside the blastocoel; C, inversion; D, amphiblatula with flagellae outside; E, mature free-swimming amphiblastula; F, young rhagon after metamorphosis.
FIG. 17 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 17. — The organization of the aquiferous system in Sycon sycandra (SEM); A, tubes (t); B, distal chones (d); C, detail of tubes (t) and inhalant openings (i); D, apopyles (a). Scale bars: A, 160 µm; B, 65 µm; C, 13 µm; D, 43 µm.
FIG. 1 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 1. —Sycon sycandra; A, SEM view of the choanoderm; B, a choanocyte showing the typical apical nucleus (n) of the Calcaronea (TEM). Scale bars: A, 3 µm; B, 0.7 µm.
FIG. 25 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 25. — Diagram of the Jenkinidae-type of skeleton. Abbreviations: a, atrium; as, atrial spicules; ss, subatrial spicules; cx, cortex.
FIG. 16 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 16. — Diagram of a transverse section through the wall of Sycon natalense Borojevic, 1967. Abbreviations: a, atrium; as, atrial skeleton composed of tangential triactines and tetractines; ss, subatrial spicules; ar, articulate choanosomal skeleton; dc, distal cone, with a short tuft of diactines (from Borojevic 1967b). Scale bar: 100 µm.
FIG. 21. — A in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 21. — A transverse section through the wall of Leucandra aspera (Schmidt, 1862) (light micrograph). Abbreviations: a, atrium; as, atrial skeleton; ch, choanosome; cx, cortex. Scale bar: 230 µm.
FIG. 12 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 12. — Diagram of the Jenkinidae type of the sponge wall organization. Abbreviations: cx, cortex; ch, choanoderm; a, atrium; o, osculum; ic, inhalant cavities.
FIG. 19 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 19. — Diagram of a longitudinal radial section through the wall of Ute gladiata Borojevic, 1966. Abbreviations: a, atrium; as, atrial skeleton; ss, subatrial spicules; ar, articulate choanosomal skeleton; cx, cortex (from Borojevic 1966). Scale bar: 100 µm.
FIG. 10 in A revision of the supraspecific classification of the subclass Calcaronea (Porifera, class Calcarea)
FIG. 10. — Diagram of the leuconoid type of aquiferous system organization, such as observed in many Calcaronea. Instead of a central atrial cavity there is a network of aquiferous exhalant canals that increase in size from the distal regions to the oscula. Abbreviations: cx, cortex; ch, choanoderm; ic, inhalant cavities; ec, exhalant cavities; a, atrium.
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.