Editing Triassic (section)

=== Marine invertebrates ===
In [[Ocean|marine environments]], new modern types of [[coral]]s appeared in the Early Triassic, forming small patches of [[reefs]] of modest extent compared to the great reef systems of [[Devonian]] or modern times. At the end of the Carnian, a reef crisis occurred in South China.<ref>{{Cite journal |last1=Jin |first1=Xin |last2=Shi |first2=Zhiqiang |last3=Rigo |first3=Manuel |last4=Franceschi |first4=Marco |last5=Preto |first5=Nereo |date=15 September 2018 |title=Carbonate platform crisis in the Carnian (Late Triassic) of Hanwang (Sichuan Basin, South China): Insights from conodonts and stable isotope data |url=https://linkinghub.elsevier.com/retrieve/pii/S1367912018302438 |journal=[[Journal of Asian Earth Sciences]] |language=en |volume=164 |pages=104–124 |doi=10.1016/j.jseaes.2018.06.021 |bibcode=2018JAESc.164..104J |s2cid=134733944 |access-date=22 September 2023|url-access=subscription }}</ref> [[Serpulidae|Serpulids]] appeared in the Middle Triassic.<ref name=VinnMutvei2009>{{cite journal |last1=Vinn |first1=O. |last2=Mutvei |first2=H. |year=2009 |title=Calcareous tubeworms of the Phanerozoic |journal=Estonian Journal of Earth Sciences |volume=58 |issue=4 |pages=286–96 |url=http://www.kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2009/issue_4/earth-2009-4-286-296.pdf |access-date=2012-09-16 |doi=10.3176/earth.2009.4.07 |doi-access=free}}</ref> [[Microconchids]] were abundant. The shelled [[cephalopod]]s called [[ammonite]]s recovered, diversifying from a single line that survived the Permian extinction. Bivalves began to rapidly diversify during the Middle Triassic, becoming highly abundant in the oceans.<ref>{{cite journal |last1=Komatsu |first1=Toshifumi |last2=Chen |first2=Jin-hua |last3=Cao |first3=Mei-zhen |last4=Stiller |first4=Frank |last5=Naruse |first5=Hajime |date=10 June 2004 |title=Middle Triassic (Anisian) diversified bivalves: depositional environments and bivalve assemblages in the Leidapo Member of the Qingyan Formation, southern China |url=https://www.sciencedirect.com/science/article/abs/pii/S0031018204001841 |journal=[[Palaeogeography, Palaeoclimatology, Palaeoecology]] |volume=208 |issue=3–4 |pages=227–223 |doi=10.1016/j.palaeo.2004.03.005 |bibcode=2004PPP...208..207K |access-date=31 March 2023|url-access=subscription }}</ref>