Type species: Arborocladia tarkhanca Nekhoroshev in Nikiforova, 1941
The date of this genus has been the source of confusion for some time. Nekhoroshev (1933) named it but did not formally describe it at this time. He later acknowledged that the 1933 citation was invalid and formally diagnosed the genus and its type species (Nekhoroshev, 1956, p. 241). However, prior to this, in 1941 in a publication by Nikiforova, the genus is named and described, and illustrated and the authorship attributed to ‘Nekhoroshev (in litt)’. It is regarded that this constitutes a formal erection of the genus, and its authorship given above reflects this view. (Comments appended by Patrick Wyse Jackson, 2013)
This genus includes the species:
Popeko, 1977 | Early Carboniferous | Russia | WoRMS 1399841 | |
(Sakagami, 1962) | Carboniferous Mississippian | Japan | WoRMS 1409997 | |
Gorjunova & Morozova, 1979 | Early Carboniferous Visean | Mongolia | WoRMS 1399842 | |
Nikiforova, 1941 | Carboniferous Mississippian Tournaisian | Russia Rudnyi Altai | WoRMS 1399843 |
This information is based upon various sources, but no personal knowledge. I am indebted to the late Alan Horowitz for his compilation, and to Dr. J. Pachut.
I would be grateful for corrections to, or critical reviews of this information. This is not a 'final' version (an impossible ideal), but a working document.
Thanks to Andrej Ernst for further information.