Dialipina

{{Short description|Extinct genus of fishes}}

{{Italic title}}

{{Automatic taxobox

| fossil_range = {{fossilrange|Lochkovian|Emsian|Lochkovian to Emsian}}

| image =

| image_caption =

| taxon = Dialipina

| authority = Schultze, 1968

| subdivision_ranks = Species

| type_species = {{extinct}}Dialipina salgueiroensis

| type_species_authority = Schultze, 1968

| subdivision = * {{extinct}}D. markae Schultze, 1992

• {{extinct}}D. salgueiroensis Schultze, 1968

}}

Dialipina is an extinct genus of prehistoric marine bony fish from the Early Devonian.{{Cite web |title=PBDB Taxon |url=https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=34998 |access-date=2024-08-14 |website=paleobiodb.org}}{{cite journal |last1=Zhao |first1=Wen-Jin |last2=Zhu |first2=Min |title=Siluro-Devonian vertebrate biostratigraphy and biogeography of China |journal=Palaeoworld |date=1 March 2010 |volume=19 |issue=1 |pages=4–26 |doi=10.1016/j.palwor.2009.11.007 |url=https://doi.org/10.1016/j.palwor.2009.11.007 |issn=1871-174X|url-access=subscription }} It contains two species, both known from the high Arctic of Asia and North America. It was initially thought to be and sometimes still is treated as an early, basal actinopterygian,{{Cite book |url=http://dx.doi.org/10.1201/b12434 |title=Major Events in Early Vertebrate Evolution |date=2001-02-15 |publisher=CRC Press |doi=10.1201/b12434 |isbn=978-1-134-56886-4 |editor-last=Ahlberg |editor-first=Per Erik}}{{Cite journal |last1=Zhu |first1=Min |last2=Yu |first2=Xiaobo |last3=Wang |first3=Wei |last4=Zhao |first4=Wenjin |last5=Jia |first5=Liantao |date=2006 |title=A primitive fish provides key characters bearing on deep osteichthyan phylogeny |url=https://www.nature.com/articles/nature04563 |journal=Nature |language=en |volume=441 |issue=7089 |pages=77–80 |doi=10.1038/nature04563 |issn=1476-4687|url-access=subscription }}{{Cite journal |last1=Schultze |first1=Hans-Peter |last2=Cumbaa |first2=Stephen L. |date=2017 |title=A new Early Devonian (Emsian) arthrodire from the Northwest Territories, Canada, and its significance for paleogeographic reconstruction |url=http://www.nrcresearchpress.com/doi/10.1139/cjes-2017-0013 |journal=Canadian Journal of Earth Sciences |language=en |volume=54 |issue=5 |pages=461–476 |doi=10.1139/cjes-2017-0013 |issn=0008-4077|hdl=1807/76893 |hdl-access=free }} but recent phylogenetic analyses suggest that it may instead be a stem-osteichthyan.{{cite journal |last1=Friedman |first1=Matt |title=Styloichthys as the oldest coelacanth: Implications for early osteichthyan interrelationships |journal=Journal of Systematic Palaeontology |date=January 2007 |volume=5 |issue=3 |pages=289–343 |doi=10.1017/S1477201907002052}}{{cite journal |last1=Giles |first1=Sam |last2=Friedman |first2=Matt |last3=Brazeau |first3=Martin D. |title=Osteichthyan-like cranial conditions in an Early Devonian stem gnathostome |journal=Nature |date=2 April 2015 |volume=520 |issue=7545 |pages=82–85 |doi=10.1038/nature14065|pmid=25581798 |pmc=5536226 }}

The following species are known:

• †D. markae Schultze, 1992 - Lochkovian of Kotelny Island, Russia
• †D. salgueiroensis Schultze, 1968 (type species) - Emsian of the Northwest Territories, Canada (Bear Rock Formation)

The early Devonian stem-gnathostome Janusiscus was described from remains from the Siberian mainland that were previously attributed to D. markae.