# New! Developing Mouse - Visual Cortex Data Available for Download and Programmatic Access

**URL:** <https://community.brain-map.org/t/new-developing-mouse-visual-cortex-data-available-for-download-and-programmatic-access/4848>\
**Category:** Technical\
**Created:** [February 12, 2026, 2:11pm UTC](https://community.brain-map.org/t/new-developing-mouse-visual-cortex-data-available-for-download-and-programmatic-access/4848 "2026-02-12T14:11:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Elysha-AIBS](https://yyz1.discourse-cdn.com/flex027/user_avatar/community.brain-map.org/elysha-aibs/32/828_2.png) [@Elysha-AIBS](https://community.brain-map.org/u/Elysha-AIBS)\
**Post date:** [February 12, 2026, 2:11pm UTC](https://community.brain-map.org/t/new-developing-mouse-visual-cortex-data-available-for-download-and-programmatic-access/4848/1 "2026-02-12T14:11:07Z")

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We are pleased to share the Developing Mouse - Visual Cortex data through the abc\_atlas\_access library to complement the recent paper publication, [Continuous cell-type diversification in mouse visual cortex development | Nature](https://www.nature.com/articles/s41586-025-09644-1) . This is a set of single cell transcriptomic dataset containing 568,654 cells from mice ranging in age from embryonic to adult. This release provides a four level taxonomy defining 15 classes, 40 subclasses, 148 clusters and 714 subclusters. This cell-type assignment is broadly consistent with those from the previous studies from the [Allen Institute for Brain Science, Whole Mouse Brain (WMB)](WMB-taxonomy.md) and the [Broad Institute whole mouse brain taxonomy](Consensus-WMB-taxonomy.md) at the subclass level while providing finer cell-type and temporal resolutions with additional subcluster annotations.

You can find links to the data descriptions [here](https://alleninstitute.github.io/abc_atlas_access/descriptions/Dev-Mouse-Vis-Cortex-dataset.html) and notebooks walking users through the data set [here](https://alleninstitute.github.io/abc_atlas_access/descriptions/Dev-Mouse-Vis-Cortex-notebooks.html).