Palaeobotanical Collections, University College of Cape Breton, Sydney, Nova Scotia, Canada

Type specimens

Holotype 989GF-275 + 989GF-276 for Sydneia manleyi Pšenička, Bek, Zodrow, Cleal et A.R.Hemsley

Paratype 989GF-274 for Sydneia manleyi Pšenička, Bek, Zodrow, Cleal et A.R.Hemsley

Holotype 981GF-367 for Acitheca alii Zodrow, Šimůnek, Cleal, Bek et Pšenička

Holotype 003GF-325 for Potoniea krisiae Pšenička, Zodrow et Bek