Thewissen & Hussain 1998
Nalacetus is an extinct pakicetid early whale, fossils of which have been found in Lutetian red beds in Punjab, Pakistan ( , paleocoordinates ). Nalacetus lived in a fresh water environment, was amphibious, and carnivorous. It was considered monophyletic by Cooper, Thewissen & Hussain 2009. It was said to be wolf-sized and one of the earliest forms of the order Cetacea.
- H-GSP[Explain 1] 96055, right palatal fragment with P4 and M1−2.
- H-GSP 30306, right maxillary fragment with P2 and partial P3−4; a fragmentary mandible with fragmented teeth together with some isolated lower teeth.
In the cheek teeth of Pakicetus, the protocone lobe increases from the first molar to the third. In Nalacetus, in contrast, the protocone lobe is larger in the first molar than in the second.
- Howard University-Geological Survey of Pakistan Project
- Cooper, Lisa Noelle; Thewissen, J. G. M.; Hussain, S. T. (2009). "New middle Eocene archaeocetes (Cetacea: Mammalia) from the Kuldana Formation of northern Pakistan" (PDF). Journal of Vertebrate Paleontology. 104 (4): 1289–99. doi:10.1671/039.029.0423. OCLC 506008976. Archived from the original (PDF) on 2012-07-14. Retrieved June 2013. Check date values in:
- Thewissen, J. G. M.; Hussain, S. T. (1998). "Systematic review of the Pakicetidae, Early and middle Eocene Cetacea (Mammalia) from Pakistan and India". Bulletin of the Carnegie Museum. 34: 220–38.
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