Peramus
genus of mammals
Peramus is an extinct genus of cladotherian mammal. It lived in the Late Jurassic and Early Cretaceous of Europe and North Africa.
Species
There are three known extinct species in the genus:
Peramus dubius Lulworth Formation, United Kingdom, Berriasian
Peramus minor Lulworth Formation, United Kingdom, Berriasian
Peramus tenuirostris Lulworth Formation, United Kingdom, Berriasian
Additionally, indeterminate remains are known from the Ksar Metlili Formation of Morocco, dating to the Tithonian-Berriasian, and the Angeac-Charente bonebed in France, dating to the Berriasian.
Phylogeny
Peramus is generally considered an advanced cladotherian. In the analysis performed by Panciroli and colleagues (2018), Peramus was recovered as within a clade also including Palaeoxonodon and Amphitherium, as derived members of Cladotheria. Peramus, Palaeoxonodon and Amphitherium were united by the shared traits of "convergence of the Meckel’s sulcus with the ventral border of the mandible; and possessing open rooted postcanines." but the placement of Peramus as a more advanced cladotherian cannot be ruled out. In a 2018 analysis by Bi and colleagues, Peramus was recovered in a clade with Palaeoxonodon and Nanolestes also as advanced cladotherians. In a 2022 study of cladotherian relationships, it was recovered as a member of Zatheria, closer to Theria than either Palaeoxonodon and Nanolestes.
“Peramus” enters the record as genus of mammals. Crown Archives preserves that source wording while asking what Peramus, genus and mammals can confirm, complicate or overturn.
Why this record matters
“Peramus” is worth following because a concise public description often conceals a longer documentary argument. Here, Peramus, genus and mammals provides the most credible route into that argument.
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 Feb 23, 2026. The linked authority identifier is Q41156804. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2018 and 2022.
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.
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This entry incorporates text from “Peramus” 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.