Paleocene Protictis now nests with extant Prionodon in the LRT
Only the front half of the skull is known
from Paleocene Protictis (Fig 1). Here, with DGS colors added it is finally compared to the extant linsang, Prionodon , which is related to the extant common genet, Genetta.
Evolutionary changes are few considering the intervening 60 million years between Protictis and Prionodon.
Figure 1. Extinct Protictis compared to the extant civet, Prionodon.
” data-medium-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2016/08/protictis_skull588-1.gif?w=206″ data-large-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2016/08/protictis_skull588-1.gif?w=584″ class=”size-full wp-image-86237″ src=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2016/08/protictis_skull588-1.gif” alt=”Figure 1. Extinct Protictis compared to the extant civet, Prionodon.” width=”584″ height=”849″ />
Figure 1. Extinct Protictis compared to the extant civet, Prionodon.
Protictis haydenianus
(formerly Didymictis Cope 1882, Middle Paleocene ~60 mya, ~75 cm in length, is known from a partial skull. Close to Prionodon, Protictis was among the first civets = basal Carnivora to descend from the trees following the extinction of the dinosaurs.
Figure 2. The banded linsang (Prionodon) in vivo. Relatives, like Protictis, go back at least to the Paleocene.
” data-medium-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2021/10/prionodon_invivo588.jpg?w=300″ data-large-file=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2021/10/prionodon_invivo588.jpg?w=584″ class=”size-full wp-image-60711″ src=”https://pterosaurheresies.wordpress.com/wp-content/uploads/2021/10/prionodon_invivo588.jpg” alt=”Figure 2. The banded linsang (Prionodon) in vivo. Relatives, like Protictis, go back at least to the Paleocene.” width=”584″ height=”252″ />
Figure 2. The banded linsang (Prionodon) in vivo. Relatives, like Protictis, go back at least to the Paleocene.
Prionodon linsang
(Hardwicke 1821; 35cm + 36cm tail) is the extant banded linsang. This nocturnal predator feeds on birds, snakes and rats. Note the long neck here emphasized by the position of the pectoral limbs.
References
Cope ED 1882a. Contributions to the history of the Vertebrata of the lower Eocene of Wyoming and New Mexico, made during 1881. Proceedings of the American Philosophical Society: 139-197.
Cope ED 1882e. Note on Eocene Mammalia. American Naturalist 16:522.
Hardwicke T 1821. Trans. Linn. Soc. Lond. vol.13 p.236, pl. 24.
wiki/Protictius
wiki/Banded_linsang – Prionodon
Source: https://pterosaurheresies.wordpress.com/2024/05/26/paleocene-protictis-now-nests-with-extant-prionodon-in-the-lrt/
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