Thymallus, [565];

T. vexillifer = vulgaris, [568]

Thymus, [344], [345]

Thyrina, [639]

Thyroid gland, [46], [343], [344]

Thyrsites, [679]

Thyrsitocephalus, [679]

Thyrsoidea, [605];

T. macrura, [605];

T. meleagris, skull, [604]