ABANDONED. Book - boat named cokapotasaurus

[Charlotte]

I am searching for a book that my mum used to love when she was young, she used to read it in the late 60's and early 70's it was about a boat that was called the cokapotasaurus (not sure if this is the correct spelling) unfortunately she can't remember the name or author of the book please help!

[Lobstergirl, au gratin]

Was it a picture book? Chapter book? What age reader was it aimed at - 6, 11, YA? What did the boat look like? Was this fiction or nonfiction?

[Lobstergirl, au gratin]

No response in more than 2 years and OP not active. Moving to Abandoned.