Cryptonemiales

{{Short description|Historic order of algae}}

The Cryptonemiales is a defunct algal order; it is synonymous with the Halymeniales{{citation

| last = Gavio | first = B.

| year = 2002

| title = New Insights in the Cryptonemiales-Rhodymeniales Complex and Resurrection of the Allied Red Algal Order Nemastomatales Kylin 1925 as Inferred From rbcL Sequence Analysis and Comparative Reproductive Morphology

| journal = Journal of Phycology

| volume = 38

| issue = s1

| pages = 12–12

| doi = 10.1046/j.1529-8817.38.s1.36.x

| last2 = Fredericq

| first2 = S.

}} and has significant overlap with the Nemastomatales.{{citation

| last1 = Saunders | first1 = G.W.

| last2 = Kraft | first2 = G.T.

| year = 2002

| title = Two New Australian Species of Predaea (nemastomataceae, Rhodophyta) with Taxonomic Recommendations …

| journal = J Phycol

| volume = 38

| issue = 6

| pages = 1245–1260

| doi = 10.1046/j.1529-8817.2002.02039.x

}}