ANGGOTA FILUM CHORDATA(LANJUTAN)

I GEDE SUDIRGAYASA

OISTECHTHYANS

ANCESTRALDEUTEROSTOME

Notochord

Commonancestor ofchordates

Head

Vertebral column

Jaws, mineralized skeleton

Lungs or lung derivatives

Lobed fins

Limbs with digits

Amniotic egg

Milk

Echinodermata

Cephalochordata

Urochordata

Myxini

Petromyzontida

Chondrichthyes

Actinopterygii

Actinistia

Dipnoi

Amphibia

Reptilia

Mammalia

Ch

ord

ates

Cran

iates

Ve

rteb

rates

Gn

atho

stom

es

Oiste

chth

yans

Lob

e-fin

s

Tetrapo

ds

Am

nio

tes

FILOGENI KORDATA YANG MASIH ADA

What do you notice that is odd?

Ikan bersirip duri dan ikan bersirip daging

• Sebagian besar vertebrata yang tergolong ke dalam klad gnatostoma disebut Osteichthyes

• Osteichthyes = ikan bertulang

• Osteichthyans termasuk bony fish and tetrapods

– osteichthyans aquatik adalah vertebrata yang secara umum disebut ikan

© 2011 Pearson Education, Inc.

Figure 34.16

Nostril

BrainSpinal cord

Swimbladder

Dorsal fin

Adipose finCaudalfin

Cutedge ofoperculum

Gills

Kidney

Heart

Liver

Stomach

Intestine

Gonad

Pelvicfin

Anus

Anal fin

Lateralline

Urinarybladder

Actinopterygii

ANCESTRALDEUTEROSTOME

Notochord

Commonancestor ofchordates

Head

Vertebral column

Jaws, mineralized skeleton

Lungs or lung derivatives

Lobed fins

Limbs with digits

Amniotic egg

Milk

Echinodermata

Cephalochordata

Urochordata

Myxini

Petromyzontida

Chondrichthyes

Actinopterygii

Actinistia

Dipnoi

Amphibia

Reptilia

Mammalia

Ch

ord

ates

Cran

iates

Ve

rteb

rates

Gn

atho

stom

es

Oiste

chth

yans

Lob

e-fin

s

Tetrapo

ds

Am

nio

tes

FILOGENI KORDATA YANG MASIH ADA

What do you notice that is odd?

Ray-Finned Fishesikan bersirip duri

• Actinopterygii, the ray-finned fishes, include nearly all the familiar aquatic osteichthyans

• Ray-finned fishes originated during the Silurian period (444 to 416 million years ago)

• The fins, supported mainly by long, flexible rays, are modified for maneuvering, defense, and other functions

© 2011 Pearson Education, Inc.

Figure 34.17

Yellowfin tuna (Thunnus albacares)

Redlionfish(Pteroisvolitans)

Commonsea horse(Hippocampusramulosus)

Fine-spotted moray eel(Gymnothorax dovii)

• VID

• VID

• VID

• VID

• VID

• VID

LOBE-FINS

ANCESTRALDEUTEROSTOME

Notochord

Commonancestor ofchordates

Head

Vertebral column

Jaws, mineralized skeleton

Lungs or lung derivatives

Lobed fins

Limbs with digits

Amniotic egg

Milk

Echinodermata

Cephalochordata

Urochordata

Myxini

Petromyzontida

Chondrichthyes

Actinopterygii

Actinistia

Dipnoi

Amphibia

Reptilia

Mammalia

Ch

ord

ates

Cran

iates

Ve

rteb

rates

Gn

atho

stom

es

Oste

ichth

yans

Lob

e-fin

s

Tetrapo

ds

Am

nio

tes

FILOGENI KORDATA YANG MASIH ADA

What do you notice that is odd?

Figure 34.18

Lowerjaw

Scalycovering

Dorsal spine

5 cm

Lobe-Fins (ikan sirip daging)

• The lobe-fins (Sarcopterygii) have muscular pelvic and pectoral fins• Lobe-fins also originated in the Silurian period

Figure 34.19

Karakteristik

• Berevolusi selama periode devon

• Memiliki sirip dengan tulang yang diselaputi otot yang tebal

• Garis ketirunan yang lain adalah ikan paru-paru (dipnoi)

• Dipnoi ditemukan di air tawar, insang organ utama

Lungfish (dipnoi)

• VID

• VID

• VID

ANCESTRALDEUTEROSTOME

Notochord

Commonancestor ofchordates

Head

Vertebral column

Jaws, mineralized skeleton

Lungs or lung derivatives

Lobed fins

Limbs with digits

Amniotic egg

Milk

Echinodermata

Cephalochordata

Urochordata

Myxini

Petromyzontida

Chondrichthyes

Actinopterygii

Actinistia

Dipnoi

Amphibia

Reptilia

Mammalia

Ch

ord

ates

Cran

iates

Ve

rteb

rates

Gn

atho

stom

es

Oste

ichth

yans

Lob

e-fin

s

Tetrapo

ds

Am

nio

tes

REVIEW

What do you notice that is odd?

DISKUSI