Mammal Skulls ID (Vertebrate Natural History) 2025

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27 Terms

1
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Black Rat, Rattus rattus, Muridae, Rodentia

<p></p>
2
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Norway Rat, Rattus norvegicus, Muridae, Rodentia

Temporal ridge shape is a reliable way to tell black rat from norway rat with the skulls.

<p>Temporal ridge shape is a reliable way to tell black rat from norway rat with the skulls.</p>
3
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Snowshoe Hare, Lepus americanus, Leporidae, Lagomorpha

fenestration between eyes and nostrils= webby-hollow looking area of bone

<p>fenestration between eyes and nostrils= webby-hollow looking area of bone</p>
4
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Eastern cottontail, Sylvilanus floridanus, Leporidae, Lagomorpha

fenestration between eyes and nostrils= webby-hollow looking area of bone

<p>fenestration between eyes and nostrils= webby-hollow looking area of bone</p>
5
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Common raccoon, Procyon lotor, Procyonidae, Carnivora

Skull: short rostrum, no sagittal crest

<p><u>Skull</u>: short rostrum, no sagittal crest</p>
6
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Coyote, Canis latrans, Canidae, Carnivora

Skull: large canines, rostrum slopes gently to forehead

<p><u>Skull</u>: large canines, rostrum slopes gently to forehead</p>
7
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Gray Wolf, Canis lupus, Canidae, Carnivora

large skull, rostrum slopes gently to forehead

<p>large skull, rostrum slopes gently to forehead</p>
8
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Red fox, Vulpes vulpes, Canidae, Carnivora

Skull: V-shaped temporal lines

<p><span><u>Skull</u>: V-shaped temporal lines</span></p>
9
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Gray fox, Urocyon cinereoargenteus, Canidae, Carnivora

Skull: U-shaped temporal lines

<p><span><u>Skull</u>: U-shaped temporal lines</span></p>
10
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American black bear, Ursus americanus, Ursidae, Carnviroa

Skull: smooth slope from forehead to rostrum

<p><u>Skull</u>: smooth slope from forehead to rostrum</p>
11
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Brown bear, Ursus arctos, Ursidae, Carnivora

Skull: steep drop between forehead and rostrum

<p><u>Skull</u>: steep drop between forehead and rostrum</p>
12
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Polar bear, Ursus maritimus, Ursidae, Carnivora

Skull: large, elongated

<p><u>Skull</u>: large, elongated</p>
13
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Fisher, Pekania pennanti, Mustelidae, Carnivora

Skull: short and long, sharp teeth

<p><span><u>Skull</u>: short and long, sharp teeth</span></p>
14
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Long-tailed weasel, Mustela frenata, Mustelidae, Carnivora

Skull: boxy, blunt rostrum, flat top

<p><span><u>Skull</u>: boxy, blunt rostrum, flat top</span></p>
15
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American Mink, Neovison vison, Mustelidae, Carnivora

Skull: boxy, larger than weasel

<p><span><u>Skull</u>: boxy, larger than weasel</span></p>
16
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Northern River Otter, Lontra canadensis, Mustelidae, Carnivora

Skull: boxy, larger than mink

<p><span><u>Skull</u>: boxy, larger than mink</span></p>
17
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Eastern spotted skunk, Spilogale putorius, Mephitidae, Carnivora

Skull: flat top, blunt rostrum, pointy canines

<p><u>Skull</u>: flat top, blunt rostrum, pointy canines</p>
18
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Striped skunk, Mephitis mephitis, Mephitidae, Carnivora

Skull: rounder, blunt rostrum, sharp canines

<p><u>Skull</u>: rounder, blunt rostrum, sharp canines</p>
19
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Cougar, Puma concolor, Felidae, Carnivora

Skull: noticeably broad and short with high, arched forehead region

<p><u>Skull</u>: noticeably broad and short with high, arched forehead region</p>
20
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Bobcat, Lynx rufus, Felidae, Carnivora

medium-sized skull, large eye holes, short snout, big canines (bobcats rely more on sight than smell)

<p>medium-sized skull, large eye holes, short snout, big canines (bobcats rely more on sight than smell)</p>
21
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Bottle-nosed dolphin, Tursiops truncatus, Delphinidae, Cetacea

Skull: Telescoped skull (rostra elongated and tapered anteriorly while nostrils are moved dorsally); allows them to breathe more easily while swimming

<p><u>Skull</u>: Telescoped skull (rostra elongated and tapered anteriorly while nostrils are moved dorsally); allows them to breathe more easily while swimming</p>
22
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American beaver, Castor canadensis, Castoridae, Rodentia

big orange teeth

<p>big orange teeth</p>
23
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Virginia opossum, Didelphis virginiana, Didelphidae, Didelphimorphia

basic looking skull with LOTS of teeth (50), large thin crest on top of skull

<p>basic looking skull with LOTS of teeth (50), large thin crest on top of skull</p>
24
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Feral pig, Sus scrofa, Suidade, Artiodactyla

large skull, sideways pointing teeth

<p>large skull, sideways pointing teeth</p>
25
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Pronghorn, Antilocapra americana, Anticapridae, Artiodactyla

dark sheaths on horns, protruding eye holes very close to horns

<p><span>dark sheaths on horns, protruding eye holes very close to horns</span></p>
26
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White-tailed deer, Odocoileus virginianus, Cervidae, Artiodactyla

big skull, LONG snout with lots of pointed teeth

<p>big skull, LONG snout with lots of pointed teeth</p>
27
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West Indian Manatee, Trichechus manatus, Trichechidae, Sirenia

big, heavy skull, lower jaw has large flat area to lip

<p><span>big, heavy skull, lower jaw has large flat area to lip</span></p>