cloacal membrane

https://doi.org/10.1351/goldbook.10538

Membrane that covers the embryonic cloaca during the development of urinary and reproductive organs in those vertebrates where the cloaca occurs.

Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 737 [Terms] [Paper]