T. gigantea

T. gigantea may refer to:
 * Tarchia gigantea, an ankylosaurid dinosaur species from the late Cretaceous of Mongolia
 * Tegenaria gigantea, the giant house spider, a spider species
 * Thargelia gigantea a moth species found in Morocco, Algeria, Libya, Israel and the Sinai
 * Tritonia gigantea, a marine nudibranch gastropod species
 * Tyto gigantea, an extinct barn owl species from what is now Gargano, Italy, dating back to the late Miocene

Synonyms

 * Thirmida gigantea, a synonym for Scea gigantea, a moth species