|-|The Tarphycerida contains 10 families, 11 if the Bickmoritidae are separated from the Barranceratidae in the suborder Barrandeocerina. The Lituitidae, which had been moved back and forth between the older Tarphycerida and Barrandeocerida, is now included in with the orthocerids. | |
|-|For the Tarphyceratidae, Estonioceratidae, Trocholitidae, and Ophidioceratidae that made up the original Tarphycerida, see [[ Tarphycerin Families]]. For the families included in the original Barrandeocerida, beginning with the Barrandeoceratidae and Plectoceratidae, see [[Barrandeocerine Families]] |+|
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