Table 3 Skeletal region, name, type and abbreviation for each bone examined

Neurocranium

 Olfactory

Vomer

D

VO

Mesethmoid

C

ME

Lateral ethmoid

C

LE

 Orbital

Frontal

D

FR

Parasphenoid

D

PS

Basisphenoid

C

BS

 Otic

Parietal

D

PA

Sphenotic

C

SO

Epiotic

C

EO

Pterotic

C

PO

Prootic

C

PRO

 Occipital

Supraoccipital

D

SOC

Basioccipital

C

BO

Exoccipital

C

EOC

Mandibular arch

Premaxilla

D

PMX

Maxilla

D

MX

Dentary

D

DE

Articular

C

AR

Palatine

C

P

Ectopterygoid

D

EP

Entopterygoid

D

ENP

Quadrate

C

QA

Metapterygoid

C

MP

Hyoid arch

Hyomandibular

C

HM

Symplectic

C

SY

Interhyal

C

IH

Epihyal

C

EH

Ceratohyal

C

CH

Dorsal hypohyal

C

DHH

Ventral hypohyal

C

VHH

Basihyal

C

BH

Operculum

D

OP

Preoperculum

D

POP

Suboperculum

D

SOP

Interoperculum

D

IOP

Branchiostegal rays

D

BSR

Gill arches

Pharyngobranchial (1–4)

C

PB

Upper Tooth Plate (2–4)

D

UTP

Epibranchial (1–4)

C

EB

Ceratobranchial (1–5)

C

CB

Lower tooth Plate

D

LTP

Hypobranchial (1–3)

C

HB

Basibranchial (1–4)

C

BB