Here is a short list of transitional fossils:

Cladoselache

tristychius

ctenacanthus

paleospinax

spathobatis

Protospinax

Acanthodians

cheirolepis

mimia

Canobius

Aeduella

Parasemionotus

Oreochima

leptolepis

Osteolepis

Eusthenopteron

Sterropterygion

tiktaalik

panderichthys

Elpistostege

Obruchevichthys

Hynerpeton

Acanthostega

Ichthyostega

Pholidogaster

Pteroplax

Dendrerpeton acadianum

Archegosaurus decheni

Eryops megacephalus

Trematops

Amphibamus lyelli

Doleserpeton annectens

vieraella

Proterogyrinus

Limnosclis

Tseajaia

Solenodonsaurus

Hylonomus

Paleothyris

Captorhinus

Petrolacosaurus

Araeoscelis

Apsisaurus

Claudiosaurus

Planocephalosaurus

Protorosaurus

Prolacerta

Proterosuchus

Hyperodapedon

Trilophosaurus

Coelophysis

Deinonychus

Oviraptor

Lisboasaurus

Archeopteryx

Sinornis

Ambiortus

Hesperornis

Ichthyornis

Paleothyris

Protoclersydrops

Clepsydrops

Archaeothyris

Varanops

Haptodus

Dimetrodon

Sphenacodon

Biarmosuchia

Procynosuchus

Dvinia

Thrinaxodon

Cynognathus

Diademodon

Proelesodon

Probainognathus

Exaeretodon

Oligokyphus

Kayentatherium

Pachygenelus

Diarthrognathus

Adelobasileus

Sinoconodon

Kuehneotherium

Eozostrodon

Morganucodon

Haldanodon

Peramus

Endotherium

Kielantherium

Aegialodon

Steropodon

Vincelestes

Pariadens

Kennalestes

Cimolestes

Procerberus

Gypsonictops

Palaechthon

Purgatorius

Cantius

Pelycodus

Amphipithecus

Pondaungia

Parapithecus

Propliopithecus

Aegyptopithecus

Proconsul

Limnopithecus

Dryopithecus

Pakicetus

Nalacetus

Ichthyolestes

Gandakasia

Ambulocetus

Himalayacetus

Attockicetus

Remingtonocetus

Dalanistes

Kutchicetus

Andrewsiphius

Indocetus

Qaisracetus

Takreacetus

Artiocetus

Babiacetus

Protocetus

Pappocetus

Eocetus

Georgiacetus

Natchitochia

Dorudon

Ancalacetus

Zygorhiza

Saghacetus

Chrysocetus

Gaviacetus

Pontogeneus

Basilosaurus

Basiloterus

Sahelanthropus tchadensis

Orrorin tugenensis

Ardipthecus ramidus

Ardipithecus kadabba

Australopithecus afarensis

Australopithecus africanus

Australopithecus anamensis

Australopithecus garhi

Australopithecus aethiopicus

Australopithecus boisei

Australopithecus robustus

Australopithecus bahreghazali

Homo habilis

Homo rudolfensis

Homo erectus.

This question makes no sense, because there are plenty of transitonal fossils.

So I'm just going to list some.

Cladoselache

tristychius

ctenacanthus

paleospinax

spathobatis

Protospinax

Acanthodians

cheirolepis

mimia

Canobius

Aeduella

Parasemionotus

Oreochima

leptolepis

Osteolepis

Eusthenopteron

Sterropterygion

tiktaalik

panderichthys

Elpistostege

Obruchevichthys

Hynerpeton

Acanthostega

Ichthyostega

Pholidogaster

Pteroplax

Dendrerpeton acadianum

Archegosaurus decheni

Eryops megacephalus

Trematops

Amphibamus lyelli

Doleserpeton annectens

vieraella

Proterogyrinus

Limnosclis

Tseajaia

Solenodonsaurus

Hylonomus

Paleothyris

Captorhinus

Petrolacosaurus

Araeoscelis

Apsisaurus

Claudiosaurus

Planocephalosaurus

Protorosaurus

Prolacerta

Proterosuchus

Hyperodapedon

Trilophosaurus

Coelophysis

Deinonychus

Oviraptor

Lisboasaurus

Archeopteryx

Sinornis

Ambiortus

Hesperornis

Ichthyornis

Paleothyris

Protoclersydrops

Clepsydrops

Archaeothyris

Varanops

Haptodus

Dimetrodon

Sphenacodon

Biarmosuchia

Procynosuchus

Dvinia

Thrinaxodon

Cynognathus

Diademodon

Proelesodon

Probainognathus

Exaeretodon

Oligokyphus

Kayentatherium

Pachygenelus

Diarthrognathus

Adelobasileus

Sinoconodon

Kuehneotherium

Eozostrodon

Morganucodon

Haldanodon

Peramus

Endotherium

Kielantherium

Aegialodon

Steropodon

Vincelestes

Pariadens

Kennalestes

Cimolestes

Procerberus

Gypsonictops

Palaechthon

Purgatorius

Cantius

Pelycodus

Amphipithecus

Pondaungia

Parapithecus

Propliopithecus

Aegyptopithecus

Proconsul

Limnopithecus

Dryopithecus

Pakicetus

Nalacetus

Ichthyolestes

Gandakasia

Ambulocetus

Himalayacetus

Attockicetus

Remingtonocetus

Dalanistes

Kutchicetus

Andrewsiphius

Indocetus

Qaisracetus

Takreacetus

Artiocetus

Babiacetus

Protocetus

Pappocetus

Eocetus

Georgiacetus

Natchitochia

Dorudon

Ancalacetus

Zygorhiza

Saghacetus

Chrysocetus

Gaviacetus

Pontogeneus

Basilosaurus

Basiloterus

Sahelanthropus tchadensis

Orrorin tugenensis

Ardipthecus ramidus

Ardipithecus kadabba

Australopithecus afarensis

Australopithecus africanus

Australopithecus anamensis

Australopithecus garhi

Australopithecus aethiopicus

Australopithecus boisei

Australopithecus robustus

Australopithecus bahreghazali

Homo habilis

Homo rudolfensis

Homo erectus

Just to name a few :)

(I might have spelled one or two incorrectly)