In 1978, though, a different, lesser known typeface was chosen for plastic and paper bags by the chain of amusement parks. It’s Vero Square, issued by the Visual Graphic Corporation in Tamarac, Florida in 1973. “Sea World” is here shown in all lowercase letters, set on an angle. As far as I can tell, this was not a new logo version, but just a one-off application.
The Vero series spans eight styles in total, see also Vero and Vero Antiqua. Vero Square is distinguished from the other family members by its squircle shapes. I haven’t found a design credit for it yet.