ag·na·than
| \ ˈag-nə-thən
\
\
plural agnathans
Definition of agnathan
: jawless fish
Two jawless fishes (agnathans) are recognized in these fossils … based on differences in the shape and histology of their tubercles …— Moya Meredith Smith, Science, 18 Jan. 1991
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“Agnathan.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/agnathan. Accessed 7 May. 2021.
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Time Traveler for agnathan
The first known use of agnathan was in 1939
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