Early Cretaceous Vincelestes compared to extant Sarcophilus, the Tasmanian devil
It all depends on how you identify
that big tooth in these two taxa (Figs 1, 2). Is it a canine? Or a canine-like premolar? We’ve seen this tooth shape change earlier in Glironia.
Figure 1. Early Cretaceous Vincelestes and Ambolestes compared to extant Monodelphis sorex. Compare the M sorex premolar to the larger premolar in Vincelestes.
” data-medium-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2024/10/vincelestes_skull588.jpg?w=136″ data-large-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2024/10/vincelestes_skull588.jpg?w=465″ class=”size-full wp-image-89119″ src=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2024/10/vincelestes_skull588.jpg” alt=”Figure 1. Early Cretaceous Vincelestes and Ambolestes compared to extant Monodelphis sorex. Compare the M sorex premolar to the larger premolar in Vincelestes.” width=”584″ height=”1287″ srcset=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2024/10/vincelestes_skull588.jpg?w=584&h=1287 584w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2024/10/vincelestes_skull588.jpg?w=68&h=150 68w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2024/10/vincelestes_skull588.jpg?w=136&h=300 136w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2024/10/vincelestes_skull588.jpg 588w” sizes=”(max-width: 584px) 100vw, 584px” />
Figure 1. Early Cretaceous Vincelestes and Ambolestes compared to extant Monodelphis sorex. Compare the M sorex premolar to the larger premolar in Vincelestes.
Here a holistic approach
recognizes a long list of shared traits, now including that canine-like premolar in both Early Cretaceous Vincelestes (Fig 1) and extant Sarcophilus (Fig 2), the Tasmanian devil.
Figure 2. The extant Tasmanian devil, Sarcophilus skull shown in three views.
” data-medium-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/sarcophilus_skull_lat588.jpg?w=142″ data-large-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/sarcophilus_skull_lat588.jpg?w=485″ class=”size-full wp-image-91818″ src=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/sarcophilus_skull_lat588.jpg” alt=”Figure 2. The extant Tasmanian devil, Sarcophilus skull shown in three views. ” width=”584″ height=”1233″ srcset=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/sarcophilus_skull_lat588.jpg?w=584&h=1233 584w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/sarcophilus_skull_lat588.jpg?w=71&h=150 71w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/sarcophilus_skull_lat588.jpg?w=142&h=300 142w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/sarcophilus_skull_lat588.jpg 588w” sizes=”(max-width: 584px) 100vw, 584px” />
Figure 2. The extant Tasmanian devil, Sarcophilus skull shown in three views. The canine is absent, replaced by a large premolar. In palatal view this tooth is concave medially, which is not seen in canines, but typical of premolars.
In palatal view
this canine-like premolar is concave medially, which is not seen in typical canines, but is typical of premolars.
Figure 3. Phascogale skull with canine-like premolar with ring around the base (cyan).
” data-medium-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/phascogale.skull588.jpg?w=216″ data-large-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/phascogale.skull588.jpg?w=584″ class=”size-full wp-image-91822″ src=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/phascogale.skull588.jpg” alt=”Figure 3. Phascogale skull with canine-like premolar with ring around the base (cyan). ” width=”584″ height=”812″ srcset=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/phascogale.skull588.jpg?w=584&h=812 584w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/phascogale.skull588.jpg?w=108&h=150 108w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/phascogale.skull588.jpg?w=216&h=300 216w, https://pterosaurheresies.wordpress.com/wp-content/uploads/2025/02/phascogale.skull588.jpg 588w” sizes=”(max-width: 584px) 100vw, 584px” />
Figure 3. Phascogale skull with canine-like premolar with ring around the base (cyan).
As Steve Jobs used to say, “There’s one more thing.”
Phascogale is another extant taxon with a canine-like premolar (Fig 1). Note the ring around the premolar, a somewhat typical structure never seen on canines.
Source: https://pterosaurheresies.wordpress.com/2025/02/24/early-cretaceous-vincelestes-compared-to-extant-sarcophilus-the-tasmanian-devil/
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