Lab #4 Quiz Flashcards

1
Q

Describe order Artiodactyla

A

Even toe hoofed mammals

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2
Q

What is the first step within a skull key that differentiates an artiodactyla from previous mammals we’ve studied?

A

Orbit is completely enclosed by solid bony ring

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3
Q

Family cervidae distinguishing headpiece?

A

Antlers

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4
Q

Family bovidae distinguishing headpiece?

A

Horns

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5
Q

Family antilocapridae distinguishing head piece?

A

Pronghorns

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6
Q

What is the spot on the skull that antlers grow from?

A

Pedicel

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7
Q

In the cervidae family ONLY males grow antlers except for which species?

A

Caribou. The females grow small antlers as well

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8
Q

If the antlers are removed how can you tell a female from male caribou skull?

A

Male pedicel is much larger. Toonie sized.

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9
Q

How can you separate a moose skull from other cervidae?

A

Big space after nasal for bulbous nose tissue.
Elongated premaxillary

(Vomer doesn’t divide entire length, premaxillaries do not meet nasals)

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10
Q

How can you tell a white tailed deer from other members of the cervidae family?

A

Antlers come forward over rostrum
One main beam of antler and the others are smaller branches
Shallow lacrimal pit
Supraorbital crest lower than frontal bone

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11
Q

How can you distinguish a mule deer from other members of the cervidae family?

A

Dichotomous branching.
Deep lacrimal pit.
Supraorbital crest is lower than frontal
Vomer divides entire length of nasal

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12
Q

How can you tell a caribou from other members of the cervidae family?

A

Caribou tiny primitive canine
Vomer divides entire length
Supraorbital crest is higher than frontal bone

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13
Q

How can you tell an elk skull from other members of the cervidae family?

A

Primitive canine. Vomer does not divide entire length
Premaxillary meets nasal

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14
Q

lacrimal pit is characteristic of which family?

A

Cervidae

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15
Q

When lacrimal meets nasal it is which family?

A

Bovidae

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16
Q

When there is a space between nasal and lacrimal, and lacrimal has NO indentation it is which family?

A

Antilocapridae

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17
Q

What is unique about horns?

A

They do NOT branch
The do NOT shed
Is bone with tons of tiny foramena all over

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18
Q

Do bovidae shed their horns?

A

No they grow all through life

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19
Q

How can you tell the age of a bovidae?

A

Count the rings on the horns

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20
Q

When there is a smooth lacrimal and a space between lacrimal and nasal it is which family?

A

Antilocapridae

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21
Q

What is unique about the Pronghorn species?

A

It is the only member of its family in North America

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22
Q

Are pronghorns deciduous?

A

Yes

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23
Q

Do female Pronghorns has pronghorns?

A

Yes they have tiny bone cores

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24
Q

What are the three types of caribou?

A

-Woodland
-mountain
-barren ground

Think of the 3 places I’ve lived
Woodlands county
Mountain CNP
Barren ground Lethbridge

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25
Q

Do cows always have horns?

A

They can be bred through selective breeding not to have them

26
Q

When lacrimal meets nasal it is 100% which family?

A

Bovidae

27
Q

What is unique about antlers?

A

They are solid bone

28
Q

What family does a deer belong to?

A

Cervidae

29
Q

What family does a bighorn sheep belong to?

A

Bovidae

30
Q

What family does a pronghorn belong to?

A

Antilocapridae

31
Q

Do female deer ever have antlers?

A

No

32
Q

What is a supraorbital crest?

A

Highest point of orbit

33
Q

What is the difference between horns, antlers and pronghorns?

A

Horns never shed, they do not branch, they are covered in keratin.
Antlers shed every year, they are solid bone, branched.
Pronghorns solid bone core. mostly not branched but have a piece that goes forward. and covered in keratin, they shed every year

34
Q

Which animal has palmate antlers?

A

Moose

35
Q

Which animal has dichotomous branching of the antlers?

A

Mule deer
(Deep - Dichotomous Mule)

36
Q

Caribou antler?

A

Large, c shaped and palmate near head

37
Q

Elk antler?

A

Long and tall featuring several points along it

38
Q

Mule antler?

A

Dichotomous branching
FORKS
Mule deer like to much
Heftier antlers

39
Q

White tailed deer antler?

A

One main been with delicate smaller branching off main beam

40
Q

Lacrimal connects with nasal? Which families?

A

Bovidae

41
Q

Lacrimal does not connect with nasal. Which families?

A

Antilocapridae
Cervidae

42
Q

Which families have a lacrimal pit?

A

Cervidae

43
Q

Which families do not have a lacrimal pit?

A

Antilocapridae

44
Q

Deep lacrimal pit?

A

Mule deer

45
Q

Shallow lacrimal pit?

A

White tailed deer

46
Q

Do any female cervidae have antlers?

A

Yes, caribou females do

47
Q

How to tell a caribou from a deer skull?

A

Caribou’s supraorbital crests higher than frontal bone
(Vomer divides entire length of both)

48
Q

Does the vomer divide the entire length for a deer?

A

Yes

49
Q

Does the vomer divide the entire length for a caribou?

A

Yes

50
Q

Does the vomer divide the entire length of an elk?

A

No

51
Q

Which cervidae have a vomer that divides the entire length?

A

Caribou and deer
(Alphabetical order)

52
Q

Which cervidae have a vomer that does NOT divide the entire length?

A

Elk and moose
(Alphabetical order)

53
Q

How to tell a moose and elk skull apart

A

Moose premaxillaries do not meet nasals
Elk have a primitive canine
Vomer does not go the whole way for both

54
Q

Deer with shallow lacrimal pit?

A

White tailed deer
(Shallow because they are soft little white tailed deer)

55
Q

Deer with deep lacrimal pit?

A

Mule deer
(Deep because they are MULE and more rugged)

56
Q

What is the point where antlers grow from?

A

Pedicel

57
Q

How to tell male from female caribou skull apart?

A

Makes pedicel is as large as a toonie

58
Q

2 mule deer distinguishing characteristics

A

Dichotomous
Deep lacrimal pit

59
Q

White tailed deer distinguishing characteristics?

A

One beam
Shallow lacrimal pit

60
Q

Which 2 have a tiny primitive canine?

A

Caribou
Elk

61
Q

What is unique of a moose?

A

Elongated premaxilla / exceptionally long rostrum

62
Q

Which member of the cervidae a
Has an elongated premaxilla?

A

Moose