Developmental timeline

TS1 (fertilized egg) → P56 (adult) · click a stage to load samples

TS9

E6.5· Streak — gastrulation begins

Primitive streak forms at the posterior. Mesoderm and definitive endoderm ingress.

1samples
1/1anatomy delineated
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.
scRNA-seq · Literature · Predictions — coming soon
TS8
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TS8E6
Prestreak

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.

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E7TS10
Amnion forms
TS10