Table 3.

Histological composition of the bones of the splanchnocranium

Phylogenetic source	Bone	Cellular	Acellular	Compact	Spongy	Tubular
Palatoquadrate arch	Metapterygoid	+	(+)	+	(+)
	Palatine	+				+
	Quadrate	+			+	(+)
Hyoid arch	Basiyhal	+				+
	Ceratohyal	+			+
	Epihyal	+		+
	Hyomandibula	+				+
	Hypohyal (d, v)	+				+
	Symplectic	+				+
Branchial arches	Basiobranchials	+				+
	Ceratobranchials	+		+	(+)
	Epibranchials	+				+
	Hypobranchialsa		+	+
	Pharyngobranchials	+				+
	Branchial arch 5	+		+

^aPart of the dermatocranium.