MolluscaBase name details
Trochonema altum Ulrich & Scofield, 1897 †
1847039 (urn:lsid:marinespecies.org:taxname:1847039)
uncertain > unassessed
Species
marine, brackish, fresh, terrestrial
fossil only
Ulrich, E. O.; Scofield, W. H. (1897). The Lower Silurian Gastropoda of Minnesota. <em>The Geology of Minnesota.</em> 3(2): 813-1081, pls. 61-82., available online at https://www.biodiversitylibrary.org/page/14923788
page(s): 1052, pl. 77, figs 39-41 [details]
page(s): 1052, pl. 77, figs 39-41 [details]
Type locality contained in Minnesota
type locality contained in Minnesota [details]
MolluscaBase eds. (2026). MolluscaBase. Trochonema altum Ulrich & Scofield, 1897 †. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1847039 on 2026-05-14
Date
action
by
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
original description
Ulrich, E. O.; Scofield, W. H. (1897). The Lower Silurian Gastropoda of Minnesota. <em>The Geology of Minnesota.</em> 3(2): 813-1081, pls. 61-82., available online at https://www.biodiversitylibrary.org/page/14923788
page(s): 1052, pl. 77, figs 39-41 [details]
page(s): 1052, pl. 77, figs 39-41 [details]
Present Inaccurate Introduced: alien Containing type locality
