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Long slinky Eupleres now nests at the deep base of Pinnipedia in the LRT

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According to Wikipedia – Eastern falamouc
“The eastern falanouc (Eupleres goudotii) is a rare mongoose-like mammal in the carnivoran family Eupleridae endemic to Madagascar.”

Figure 4. Eupleres, the near extinct Western falanouc of Madagascar. ” data-image-caption=”

Figure 4. Eupleres, the near extinct Western falanouc of Madagascar.

” data-medium-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2022/08/eupleres_invivo588.jpg?w=300″ data-large-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2022/08/eupleres_invivo588.jpg?w=584″ class=”size-full wp-image-70613″ src=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2022/08/eupleres_invivo588.jpg” alt=”Figure 4. Eupleres, the near extinct Western falanouc of Madagascar.” width=”584″ height=”272″ srcset=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2022/08/eupleres_invivo588.jpg?w=584&h=272 584w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2022/08/eupleres_invivo588.jpg?w=150&h=70 150w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2022/08/eupleres_invivo588.jpg?w=300&h=140 300w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2022/08/eupleres_invivo588.jpg 588w” sizes=”(max-width: 584px) 100vw, 584px” />

Figure 1. Eupleres, the near extinct Western falanouc of Madagascar.

Traditionally the Eupleridae clade is aligned with civets and mongooses.
And that makes sense. In the large reptile tree (LRT, 2338 taxa, subset Fig 3) Eupleres and its LRT sister taxon also from Madagascar, Fossa, the striped civet, have as their proximal outgroup a clade of mongooses that evolve to weasels that evolve to otters, another aquatic clade.

The remaining civets and their many descendants are the next more derived clade in the LRT (Fig 3). So the LRT agrees with traditional thinking here.

The fact that Eupleres and Fossa are restricted to Madagascar
while relatives live elsewhere points to an ancient origin prior to the splitting of Madagascar from Australia, India, Antarctica, SE Asia and India.

Isolated Madagascar acted as a refugium for many taxa, like lemurs and multituberculates.

Which other ancient clade
also had its origin and refugium in Madagascar?

Tenrecs are native to Madagascar and their pakicetid descendants left fossils in Pakistan, while migrating several latitudes North. Pakicetids gave rise to archaeocetes and these gave rise to odontocetes like dolphins.

Figure 1. Basal pinnipeds tested in the LRT and their ancestors back to Eupleres, the falanouc. ” data-image-caption=”

Figure 1. Basal pinnipeds tested in the LRT and their ancestors back to Eupleres, the falanouc.

” data-medium-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/cynogale_eupleres_pinnipeds588.jpg?w=80″ data-large-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/cynogale_eupleres_pinnipeds588.jpg?w=273″ class=”size-full wp-image-93716″ src=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/cynogale_eupleres_pinnipeds588.jpg” alt=”Figure 1. Basal pinnipeds tested in the LRT and their ancestors back to Eupleres, the falanouc.” width=”584″ height=”2193″ srcset=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/cynogale_eupleres_pinnipeds588.jpg?w=584&h=2193 584w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/cynogale_eupleres_pinnipeds588.jpg?w=40&h=150 40w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/cynogale_eupleres_pinnipeds588.jpg?w=80&h=300 80w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/cynogale_eupleres_pinnipeds588.jpg 588w” sizes=”(max-width: 584px) 100vw, 584px” />

Figure 1. Basal pinnipeds tested in the LRT and their ancestors back to Eupleres, the falanouc. Melivora is the honey badger, a terrestrial taxon with an aggressive attitude.

The news today
is the nesting of Eupleres basal to seals and sea lions (= Pinnipedia) in the LRT.

Figure 3. Subset of the LRT focusing on Eupleres and the Pinnipedia. ” data-image-caption=”

Figure 3. Subset of the LRT focusing on Eupleres and the Pinnipedia.

” data-medium-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/eupleres.lrt350.jpg?w=118″ data-large-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/eupleres.lrt350.jpg?w=350″ class=”size-full wp-image-93721″ src=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/eupleres.lrt350.jpg” alt=”Figure 3. Subset of the LRT focusing on Eupleres and the Pinnipedia. ” width=”350″ height=”890″ srcset=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/eupleres.lrt350.jpg 350w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/eupleres.lrt350.jpg?w=59&h=150 59w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/07/eupleres.lrt350.jpg?w=118&h=300 118w” sizes=”(max-width: 350px) 100vw, 350px” />

Figure 3. Subset of the LRT focusing on Eupleres and the Pinnipedia.

The otter civet, Cynogale,
is an aquatic transitional taxon closer to pinnipeds. They are native to SE Asia. According to Wikipedia, “The otter civet possesses webbed feet, which is an adaptation to its aquatic habitat. Its long, stiff whiskers may be used for foraging.”

Long whiskers and webbed feet as in seals, sea lions and walruses.

Now take another look at
Acrophoca (Fig 1) a Late Miocene seal with a long rostrum, as in Eupleres (Fig 1), distinct from short rostrum pinnipeds, like Phoca (Fig 1).

In phylogenetic context, the long rostrum of Acrophoca appears to be a genetic reversal, hearkening back to Eupleres.

References
wiki/Eupleres
wiki/Pinniped
wiki/Otter_civet
wiki/Acrophoca


Source: https://pterosaurheresies.wordpress.com/2025/07/18/long-slinky-eupleres-now-nests-at-the-deep-base-of-pinnipedia-in-the-lrt/


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