Shark

Front 1

Shark - Chondrocranium

Back 1

Large single element

Front 2

Shark -Splanchocranium

Back 2

Ventral part of head including Palatoquadrate cartilage, labial cartilage, Mechkel's cartilage, Basihyal, Ceratohyal and ceratobranchials

Front 3

Shark -Pelvic girdle

Back 3

Support for pelvic fins

Front 4

Shark -Rib

Back 4

curved protrusion of vertebral column

Front 5

Shark -Pectoral fin

Back 5

Fin closest to skull; supported by pectoral girdle

Front 6

Shark -Pelvic girdle

Back 6

Supports pelvic fins

Front 7

Shark -Anterior dorsal fin

Back 7

In shark movies this is the thing you see before the shark attacks; Dorsal fin closest to skull

Front 8

Shark -Pelvic fin

Back 8

Ventrally located fin near pelvic area

Front 9

Shark -Posterior dorsal fin

Back 9

Dorsally located fin closed to tail of shark

Front 10

Shark -Caudal fin

Back 10

Butt fin

Front 11

Shark Skull -Precerebral cavity

Back 11

Cavity of the rostrum

Front 12

Shark -rostral fenestra

Back 12

Paired protrusions on either side of the rostral carina

Front 13

Shark -rostrum

Back 13

scoop shaped containing the precerebral cavity

Front 14

Shark - nasal capsule

Back 14

delicate orb shaped structures snuggled next to the rostrum, these are usually lost

Front 15

Shark - supraorbital crest

Back 15

between the anorbital process and post orbital process; large crest posterior to delicate nasal capsule

Front 16

Shark - postorbital process

Back 16

At the posterior end of the supraorbital crest

Front 17

Shark - rostral carina

Back 17

Thin line running down the saggital plane of rostrum

Front 18

Shark - nares

Back 18

Tiny holes in the delicate nasal capsules

Front 19

Shark - basitrabecular process

Back 19

anterior to the basal plate; semi circular from the lateral views

Front 20

Shark -basal plate

Back 20

Large plate on ventralposterior end of chondrocranium

Front 21

Shark - otic capsule

Back 21

posterior to orbits; where inner ear is housed

Front 22

Shark - notochord

Back 22

ventral to spinal cord

Front 23

Shark - Adductor mandibulae process

Back 23

Anterior to hyomandibular and posteriro to palatoquadrate cartilage; adjacent to orbital process

Front 24

Shark - palatoquadrate cartilage

Back 24

Anterior to adductor mandibular process

Front 25

Shark - labial cartilage

Back 25

slender cartilage attacted to meckels cartilage; may not be preserved in specimen

Front 26

Shark - Meckel's cartilage

Back 26

Lower jaw; anterior to ceratohyal

Front 27

Shark - gill raker

Back 27

Little protrusions on ceratobranchials

Front 28

Shark - ceratobranchial

Back 28

Part of the splanchonocranium; rib like curved have gill rakers all over them

Front 29

Shark - hyomandibular

Back 29

Dorsal to ceratohyal and anterior to ceratobranchials

Front 30

Shark - Ceratohyal

Back 30

articulates with ventral end of hyomandibular

Front 31

Shark - basibranchials

Back 31

Ventral side of splanchnocranium arrowhead shaped part

Front 32

Shark - gill ray

Back 32

stringy protrusions of ventral side of ceratobranchials

Front 33

Shark - basihyal

Back 33

Large U shaped bone on ventral side of splanchnocranium

Front 34

Shark - spinal cord

Back 34

dorsal to notochord

Front 35

Shark - centrum

Back 35

hourglass shaped certebral body; houses notochord

Front 36

Shark - hemal spine

Back 36

extends ventrally from hemal arch;

Front 37

Shark - neural spine

Back 37

Tips of the neural plate

Front 38

Shark - Basal pterygiophore

Back 38

base of anterior dorsal fin ( iconic fin)

Front 39

Shark - vertebral column

Back 39

Column of vertebra

Front 40

Shark - ceratotrichia

Back 40

Fibrous dermal rays of fins

Front 41

Shark - radial pterygiophores

Back 41

Ceratotrichia (fibrouse rays of fins) arise from these

Front 42

Shark - hemal arch

Back 42

arch under notochord holding the caudal artery and caudal vein

Front 43

Shark - suprascapular cartilage

Back 43

Separate slender element, attaches dorsally to each scapular process of pectoral girdle

Front 44

Shark - scapular process

Back 44

Extend dorsally past fin attachment

Front 45

Shark - coracoid bar

Back 45

Portion of pectoral girdle between fins

Front 46

Shark - iliac process

Back 46

Point of attachment to the body of the pelvic fin

Front 47

Shark - pubischaidic bar

Back 47

Single element of pelvic girdle

Front 48

Shark - metapterygium

Back 48

A basal pterygiophore of the pectoral fin; this one is located most ventrally of the three

Front 49

Shark - clasper

Back 49

Reproductive unit of the pelvic fin in males

Front 50

Shark - hook of clasper

Back 50

End of clasper