Acanthodii
plural noun
Ac·an·tho·dii
| \ ˌaˌkanˈthōdēˌī, ˌakən- \
Definition of Acanthodii
: a subclass of Placodermi comprising primitive Paleozoic fishes having the anterior margin of each fin supported by a stout spine and often having one or more pairs of spines similar to the fin spines along the lower lateral part of the body between the paired fins of each side
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“Acanthodii.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Acanthodii. Accessed 1 Mar. 2021.
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Time Traveler for Acanthodii
The first known use of Acanthodii was in 1851
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