What does "regulares" mean?

`n.`规则古杯纲（古生代已灭绝的海绵或水螅纲目，具有规则杯状骨骼结构）

How do you pronounce "regulares"?

The pronunciation is /rɪˈɡjʊləriːz/. Listen to American and British pronunciations on this page.

[US]/rɪˈɡjʊləriːz/

[UK]/rɪˈɡjʊlɛrz/

n.taxonomic classification: Regulares, a class of extinct sponges or hydrozoans from the Paleozoic era, characterized by regular cup-shaped skeletons

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