Zemacies conspicua
extinct species of gastropod
Zemacies conspicua is an extinct species of sea snail, a marine gastropod mollusk in the family Borsoniidae.
Description
The length of the shell attains 83 mm, its diameter 24 mm.
(Original description) The very large shell is fusiform. The spire and the aperture are about equal. It contains about eight rounded whorls . The suture is impressed. The aperture is narrow. The sculpture indicates a fairly deep sinus immediately below the suture. The upper whorls are faintly coronate at the angle, and ridged by lines of growth and are concentrically finely lirate all over.
Distribution
This extinct marine species is endemic to Tasmania and were found in Tertiary strata.
This brief starts where responsible research should: with the source description of “Zemacies conspicua” as extinct species of gastropod. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the science & nature register because the source frames it as extinct species of gastropod. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jun 6, 2026. The linked authority identifier is Q123378442. None of the 0 selected statements returned an explicit reference.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
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Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
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Questions for further research
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This entry incorporates text from “Zemacies conspicua” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.