New Latin Urochordata, former group name, from ur- entry 2 + chordatus having a notochord, from chorda notochord, from Latin, string, cord — more at cord
1948, in the meaning defined above
Urochordata
urochordate
urochrome
“Urochordate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/urochordate. Accessed 16 Nov. 2024.
Britannica.com: Encyclopedia article about urochordate
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