taxonomy Flashcards

1
Q

fibrous, fluid filled sheath similar to the backbone

-provides strength for swimming

A

notochord

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2
Q

water incompressible

A

hydrostatic skeleton

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3
Q

used as a paddle

A

post anal tail

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4
Q

dont have a DHNC, notochord, or postanal tail as adults

A

Urochordata, Asiciduacea

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5
Q

larva with all present

A

Ascidian tadpole

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6
Q

absorb tail, notochord and DHNC

A

Metamorphosis

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7
Q

have myomeres and myosepta

A

cephalochordat

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8
Q

muscle bands

A

myomers

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9
Q

connective tissue between muscles

A

myosepta

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10
Q

jawless craniates

A

Agnatha

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11
Q

myxini

A

hagfish

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12
Q

hyperoartia

A

lampreys

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13
Q

females die after spawning and males die after eggs hatch

A

lampreys

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14
Q

larval stage of lamprey

A

ammocoete

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15
Q

oldest fossil record and first group to have pectoral fins

A

osetostraci

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16
Q

extinct at the end f permian

A

placodermi

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17
Q

sharks, skates, and rays

A

Elasmobranchii

-oily liver

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18
Q

gradual loss of caudal fin

A

rays

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19
Q

chimaeras or ratfish

no scales except spines

A

Holocephali

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20
Q

Acanthodians, Actinopertygians, Sarcopterygians (us)

A

Teleostomi

21
Q

fins with a spine and skin

oldest fossils with more sets of paired fins

A

Acanthodii

22
Q

fins and muscles mostly in body

A

Actinopterygii

23
Q

largest freshwater fish

A

Chondeostei

24
Q

caudal fin

-more complex fins

A

Neopterygii

25
Q

nearly all fish

A

Teleosts

26
Q

The fish that developed into tetrapods

A

Saropterygii

27
Q

developed homologous arm and leg bones, internal shanae, kinetic skull, etc

A

Eustgenopteron

28
Q

loss of dorsal fin

A

Panderichthys

29
Q

writs ankles, atalis

A

Titaalik

30
Q

prevent twisting

A

zygapophyses

31
Q

standard definiiton of praphyletic

A

Amphibia

32
Q

frogs and toads

A

salientia

33
Q

salamanders and newts

A

Caudata

34
Q

caeclilians

A

Gymnophiona

35
Q

has 3 membranes

A

amniotic egg

36
Q

anapsid

A

turtles and early amniotes

37
Q

diapsid

A

lizards, snakes crocodiles dinosaurs and birds

38
Q

synapsid

A

mammals

pelycosaurs

39
Q

euryapsid

A

plesiosaurs

ichthyosaurs

40
Q

also reptillia

means lizard face

A

Sauropsida

41
Q

most sauropsida and maybe turtles

A

diapsida

42
Q

dolphin like

live birth

A

Ichthyosaurs

43
Q

plesiosairs and mososaurs
mostly aquatic
laid eggs on shore or live young
relatives of lizards

A

Sauropterygia

44
Q

have a kinetic skull

A

squamata

45
Q

ruling reptiles

A

Archosauromorpha

  • crocodylomorpha
  • pterosauromorpha (pyncifibres)
46
Q

saurischia

A

lizard-hipped

47
Q

ornithischia

A

bird-hipped

48
Q

mostly quadrupedal herbivores

A

sauropodomorpha

49
Q

bipedal

A

theropoda