Developmental timeline
TS1 (fertilized egg) → P56 (adult) · click a stage to load samples
TS1
E0.5
1-cell
TS2
E1
2-cell
TS3
E2
4-16 cell
TS4
E3
morula → blastocyst
TS5
E4
late blastocyst
TS6
E4.5
attaching blastocyst
TS7
E5
egg cylinder
TS8
E6
prestreak
TS9
E6.5
streak
TS10
E7
amnion
TS11
E7.5
neural plate
TS12
E8
neural folds
TS13
E8.5
5-8 somites
TS14
E9
9-12 somites
TS15
E9.5
13-20 somites
TS16
E10
forelimb buds
TS17
E10.5
hindlimb buds
TS18
E11
handplate
TS19
E11.5
hindlimb handplate
TS20
E12
digital rays
TS21
E13.5
finger separation
TS22
E14
eyelid formation
TS23
E15
eyelids closing
TS24
E15.5
ear pinna
TS25
E16.5
long whiskers
TS26
E17.5
body hair
TS27
E18.5
pre-birth
P7
P7
postnatal day 7
P56
P56
adult (8 weeks)
E0
E2
E4
E6
E8
E10
E12
E14
E16
E18
Birth
E0E5E10E15BirthP7P56
TS24
E15.5· Ear pinnaExternal ear pinna obvious. Skin layers stratify.
5samples
0/5anatomy delineated
OPT · 4Optical Projection Tomography — a 3D scan of a chemically cleared embryo, captured by rotating it through 360° in a wide-field microscope. Isotropic voxels; raw bg = dark, tissue = bright. histology · 1Histology — embryo physically embedded and microtomed into 1–7 µm sections, stained (Nissl / H&E), imaged, and reassembled into a 3D volume. High in-plane resolution, anisotropic voxels. Stereo-seq · 18Stereo-seq (BGI) — DNB-array spatial transcriptomics with subcellular ~500 nm resolution. Captures whole-organ to whole-embryo sections; in the Spateo Cell 2024 atlas, 74 sections per embryo were aligned into a 3D cell-bin volume. sci-RNA-seq3 · 1sci-RNA-seq3 — high-throughput single-nucleus combinatorial-indexing RNA-seq (Shendure lab). The OMG mouse prenatal time-lapse profiled 11.4M nuclei across 45 developmental bins from E8 to P0 with this protocol.
Transcriptomics data · 19
Stage-matched · not registered to atlas anatomy Stereo-seq
mosta_e16_5_e1s1
121,767 cells · 28,204 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e1s2
120,842 cells · 28,930 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e1s3
155,741 cells · 28,579 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e1s4
135,973 cells · 29,034 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e1s5
152,559 cells · 28,291 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s1
59,125 cells · 27,831 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s10
114,026 cells · 28,160 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s11
109,399 cells · 27,945 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s12
94,733 cells · 27,588 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s13
77,748 cells · 27,739 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s2
73,922 cells · 27,762 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s3
110,755 cells · 28,118 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s4
99,212 cells · 27,782 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s5
132,481 cells · 28,555 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s6
137,209 cells · 28,144 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s7
155,159 cells · 28,257 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s8
120,854 cells · 28,701 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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Stereo-seq
mosta_e16_5_e2s9
129,425 cells · 28,878 genes
Spatial · mouse · stage TS24
Chen et al., Cell 2022 (MOSTA)
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sci-RNA-seq3Mouse prenatal time-lapse · whole atlas
11,441,407 cells · 45,525 genes (full atlas)
Single-cell · pre-filtered to TS24 · spans 16 stages
Qiu et al., Nature 2024 (OMG)
Open UMAP for TS24 →
3D reference models
Histology plates · 79
Kaufman atlas, EMAPA-annotated · scroll → Plate 35a
TS24
Plate 35b
TS24
Plate 35c
TS24
Plate 35d
TS24
Plate 35e
TS24
Plate 35a
TS24
Plate 35b
TS24
Plate 35c
TS24
Plate 35d
TS24
Plate 35a
TS24
Plate 35b
TS24
Plate 35c
TS24
Plate 35d
TS24
Plate 35a
TS24
Plate 35b
TS24
Plate 35c
TS24
Plate 35d
TS24
Plate 35a
TS24
Plate 35b
TS24
Plate 35c
TS24
Plate 35d
TS24
Plate 35a
TS24
Plate 35b
TS24
Plate 35c
TS24
Plate 35d
TS24
Plate 35a
TS24
Plate 35b
TS24
Plate 35c
TS24
Plate 35d
TS24
Plate 35a
TS24
Plate 35b
TS24
Plate 35c
TS24
Plate 35d
TS24
Plate 35a
TS24
Plate 35b
TS24
Plate 35c
TS24
Plate 35d
TS24
Plate 35a
TS24
Plate 35b
TS24
Plate 35c
TS24
Plate 35d
TS24
Plate 35a
TS24
Plate 35b
TS24
Plate 35c
TS24
Plate 35d
TS24
Plate 35a
TS24
Plate 35b
TS24
Plate 35c
TS24
Plate 35d
TS24
Plate 35e
TS24
Plate 36b
TS24
Plate 36a
TS24
Plate 36b
TS24
Plate 36a
TS24
Plate 36b
TS24
Plate 36a
TS24
Plate 36b
TS24
Plate 36a
TS24
Plate 36b
TS24
Plate s6a
TS24
Plate s6b
TS24
Plate s6c
TS24
Plate s6d
TS24
Plate s6a
TS24
Plate s6b
TS24
Plate s6c
TS24
Plate s6d
TS24
Plate s6a
TS24
Plate s6b
TS24
Plate s6c
TS24
Plate s6d
TS24
Plate s6a
TS24
Plate s6b
TS24
Plate s6c
TS24
Plate s6d
TS24
Plate s6a
TS24
Plate s6b
TS24
Plate s6c
TS24
Plate s6d
TS24
Knowledge graph · TS24
EMAPA / CL-anchored · drag to rotate, scroll to zoom scRNA-seq · Literature · Predictions — coming soon
Previous
TS23E15
Eyelids closing
About Theiler staging
Karl Theiler's staging system (1972) partitions prenatal development into 28 morphologically distinct steps. Virtual Embryo aligns all imagery, anatomy, and future spatial transcriptomics data to this axis.
Next
E16.5TS25
Long whiskers