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Cat species vary greatly in body and skull sizes, and weights: The largest cat species is the tiger (Panthera tigris), with a head-to-body length of up to 390 cm (150 in), a weight range of at least 65 to 325 kg (143 to 717 lb), and a skull length ranging from 316 to 413 mm (12.4 to 16.3 in).
The family Felidae consists of 41 extant species belonging to 14 genera and divided into 92 subspecies. This does not include hybrid species (such as the liger) or extinct prehistoric species (such as Smilodon).
Skulls of a wildcat (top left), a housecat (top right), and a hybrid between the two (bottom center) The domestic cat is a member of the Felidae, a family that had a common ancestor about 26] The evolutionary radiation of the Felidae began in Asia during the Miocene around 27]
Hyperailurictis intrepidus was a relatively large species, comparable in size to a modern-day leopard, and overlapping in size with the Eurasian Pseudaelurus quadridentatus. H. marshi was also a large species, but differed from H. intrepidus because of certain mandibular features.
Cranial evolutionary allometry (CREA) is a scientific theory regarding trends in the shape of mammalian skulls during the course of evolution in accordance with body size (i.e., allometry). Specifically, the theory posits that there is a propensity among closely related mammalian groups for the skulls of the smaller species to be short and ...
The skulls are heavily built with a strong zygomatic arch. Often a sagittal crest is present, sometimes more evident in sexually dimorphic species such as sea lions and fur seals, though it has also been greatly reduced in some small carnivorans. [58] The braincase is enlarged with the frontoparietal bone at the front. In most species, the eyes ...
“This species represents the smallest known fossil member of the family Felidae to date,” the study says of the newly discovered cat.. The discovery points to a wide diversity of felines ...
Feliformia skull showing double-chambered bullae. All extant feliforms share a common attribute: their auditory bullae (bony capsules enclosing the middle and inner ear). [8] This is a key diagnostic in classifying species as feliform versus caniform. In feliforms, the auditory bullae are double-chambered, composed of two bones joined by a ...