Biology:Notoparamys
From HandWiki
Notoparamys is an extinct genus of paramyine rodent that lived in North America during the Wasatchian.
Description
Notoparamys possessed a midbrain partially exposed between the cerebellum and cerebrum but lacked visible rostral colliculi.[1] The incisor enamel of Notoparamys costilloi was pauciserial. The mandibular fourth premolar of N. costilloi had a pattern of Hunter-Schreger bands known as an S-type schmelzmuster. Occlusion in N. costilloi was characterised by mesiolingual movement of the mandibular molars across the maxillary ones in a similar fashion to the closely related Paramys.[2]
References
- ↑ Bertrand, Ornella C.; Amador-Mughal, Farrah; Lang, Madlen M.; Silcox, Mary T. (29 January 2018). "New Virtual Endocasts of Eocene Ischyromyidae and Their Relevance in Evaluating Neurological Changes Occurring Through Time in Rodentia" (in en). Journal of Mammalian Evolution 26 (3): 345–371. doi:10.1007/s10914-017-9425-6. ISSN 1064-7554. https://link.springer.com/article/10.1007/s10914-017-9425-6. Retrieved 30 September 2025.
- ↑ Rose, Kenneth D.; Von Koenigswald, Wighart (1 January 2007). [111:TMPRNC2.0.CO;2.full "The Marmot-Sized Paramyid Rodent Notoparamys costilloi from the Early Eocene of Wyoming, with Comments on Dental Variation and Occlusion in Paramyids"] (in en). Bulletin of Carnegie Museum of Natural History 39: 111–125. doi:10.2992/0145-9058(2007)39[111:TMPRNC2.0.CO;2]. ISSN 0145-9058. https://bioone.org/journals/bulletin-of-carnegie-museum-of-natural-history/volume-2007/issue-39/0145-9058_2007_39_111_TMPRNC_2.0.CO_2/The-Marmot-Sized-Paramyid-Rodent-Notoparamys-costilloi-from-the-Early/10.2992/0145-9058(2007)39[111:TMPRNC]2.0.CO;2.full. Retrieved 20 September 2025.
Wikidata ☰ Q19716002 entry
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