(Translated by https://www.hiragana.jp/)
Tabular bone - Wikipedia

The tabular bones are a pair of triangular flat bones along the rear edge of the skull which form pointed structures known as tabular horns in primitive Teleostomi.[1]

References

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  1. ^ taboo word tabulate. "📌 tabular bone". Enacademic.com. Retrieved 2019-11-21.