Goniodelphis
genus of mammals (fossil)
Goniodelphis hudsoni is an extinct iniid river dolphin known from the waters of Florida during the Miocene ~14.9—11.5 through 9.1—8.7 Ma (AEO).
The fossil specimens were found in just four phosphate mines in Polk County, Florida. These mines were:
American Agricultural Chemical Company (Serravallian)
Fort Green (Hemphillian)
Payne Creek (Hemphillian)
Gardinier (Zanclean)
Taxonomy
Goniodelphis was named by Allen (1941). Its type is Goniodelphis hudsoni. It was considered monophyletic by Mark D. Uhen, Ph.D. of George Mason University in 2010. It was assigned to Delphinidae by Carroll (1988); and to Iniidae by Allen (1941), Kellogg (1944), de Muizon (1988), Morgan (1994), McKenna and Bell (1997), Hamilton et al. (2001), Fordyce and de Muizon (2001), Uhen et al. (2008) and Mark D. Uhen.
This brief starts where responsible research should: with the source description of “Goniodelphis” as genus of mammals (fossil). 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 genus of mammals (fossil). Its deeper value depends on whether names, dates, institutions and citations support that framing.
Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Nov 6, 2024. The linked authority identifier is Q5581922. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1941, 2010, 1988 and 1944.
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.
- Current terminology
- Classification context
- Finding cited technical literature
Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
- Establish the record: confirm the title “Goniodelphis”, its source revision and the description used here.
- Expand the search: follow Goniodelphis primary sources, Goniodelphis archive and Goniodelphis research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Goniodelphis”?
- Is the terminology current, historical or disputed?
- Which observation, specimen, dataset or publication supports the account?
Search terms from this dossier
This entry incorporates text from “Goniodelphis” 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.