| Citation | Portlock, J.E., 1843. Report on the Geology of the County of Londonderry, and of Parts of Tyrone and Fermanagh, etc. Geol. Survey Ireland. xxxi, 784 p. |
| DOI / ISBN | |
| PDF/Reference URL | https://books.google.ca/books/about/Report_on_the_Geology_of_the_County_of_L.html?id=qw68AAAAIAAJ&redir_esc=y |
| Ref. No. | 136490 |
| Language | English |
| Usage | not used yet |
| Comments on the publication | 54 pls. (5 color), ills. map. Describes Tristychius minor, n.sp., ribbed spine from Carboniferous of Fermanagh, Ireland, p. 464. |
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