Member of Parliament | Member of the European Parliament | Member of the Legislative Assembly | Member of Provincial Parliament (Ontario) | Member of the Scottish Parliament | member of parliament | Member of the Legislative Assembly (India) | Member of Provincial Parliament | Member of the National Assembly for Wales | Member of Congress | Senior Member | private member's bill | Nominated Member of Parliament | Member of Parliament (UK) | member of Parliament | Alum Rock,Birmingham | Alum | Member state of the European Union | Member of the Legislative Assembly (Northern Ireland) | Member of Parliament (pre-Union Ireland) | Member of Parliament (Canada) | Ex officio member | Burgess Shale | Alum Pot | Shale Niskin | shale gas | Private Member's Bill | Private member's bill | Potassium alum | Peninsula Shale Renosterveld |
It is known from the holotype and only specimen, MMUM LL 8004, an almost complete, three-dimensionally preservedand and articulated skeleton, found from the Hildoceras bifrons Zone (181.2–180.7 Ma) of the Alum Shale Member, Whitby Mudstone Formation, dating to early Toarcian stage.