Dawsonia campanulata fuit animal parietes organicas habens ex Aevo Palaeozoico adfinitatis ignotae.[1][2]
- ↑ Alex Page (2008). "Ubiquitous Burgess Shale–style “clay templates” in low-grade metamorphic mudrocks". Geology 36: 855.
- ↑ Alex Page, Philip R. Wilby, Claire J. T. Mellish, Mark Williams & Jan A. Zalasiewicz (2008). "Dawsonia Nicholson: linguliform brachiopods, crustacean tail-pieces and a problematicum rather than graptolite ovarian vesicles". Transactions of the Royal Society of Edinburgh 99: 251–266 .