Diaphragmus

Diaphragmus is an extinct genus of brachiopod belonging to the order Productida and family Linoproductidae. Specimens have been found in Carboniferous beds in North America.

Classification

Leighton & Maples (2002) conducted multiple phylogenetic analyses which are strongly in agreement that the four subfamilies Buxtoniinae, Echinoconchinae, Pustulinae and Juresaniinae form the family Echinoconchidae. The results of their phylogenetic analyses are displayed in the cladogram below:

	Productella

	Praewaagenoconcha Sentosia Leioproductus Spinocarinifera Diaphragmus Antiquatonia Flexaria Buxtonia Pustula Echinoconchus Echinaria Pulchratia Parajuresania
	Praewaagenoconcha Sentosia
	Praewaagenoconcha

	Sentosia


	Leioproductus Spinocarinifera Diaphragmus Antiquatonia Flexaria Buxtonia Pustula Echinoconchus Echinaria Pulchratia Parajuresania
	Leioproductus

	Spinocarinifera Diaphragmus Antiquatonia Flexaria Buxtonia Pustula Echinoconchus Echinaria Pulchratia Parajuresania
	Spinocarinifera Diaphragmus Antiquatonia
	Spinocarinifera

	Diaphragmus Antiquatonia
	Diaphragmus

	Antiquatonia



	Flexaria Buxtonia Pustula Echinoconchus Echinaria Pulchratia Parajuresania
	Flexaria Buxtonia
	Flexaria

	Buxtonia


	Pustula Echinoconchus Echinaria Pulchratia Parajuresania
	Pustula

	Echinoconchus Echinaria Pulchratia Parajuresania
	Echinoconchus

	Echinaria Pulchratia Parajuresania
	Echinaria

	Pulchratia Parajuresania
	Pulchratia

	Parajuresania