Editing Jurassic (section)

==== Marine ecosystems ====
Having declined at the Triassic–Jurassic boundary, reefs substantially expanded during the Late Jurassic, including both [[sponge reef]]s and [[scleractinia]]n [[coral reef]]s. Late Jurassic reefs were similar in form to modern reefs but had more microbial carbonates and hypercalcified [[sponge]]s, and had weak biogenic binding. Reefs sharply declined at the close of the Jurassic,<ref>{{Cite journal|last=Kiessling|first=Wolfgang|date=December 2009|title=Geologic and Biologic Controls on the Evolution of Reefs|url=http://www.annualreviews.org/doi/10.1146/annurev.ecolsys.110308.120251|journal=Annual Review of Ecology, Evolution, and Systematics|language=en|volume=40|issue=1|pages=173–192|doi=10.1146/annurev.ecolsys.110308.120251|issn=1543-592X}}</ref> which caused an associated drop in diversity in [[Decapoda|decapod]] crustaceans.<ref name="Klompmaker-2013">{{Cite journal|last1=Klompmaker|first1=A. A.|last2=Schweitzer|first2=C. E.|last3=Feldmann|first3=R. M.|last4=Kowalewski|first4=M.|date=2013-11-01|title=The influence of reefs on the rise of Mesozoic marine crustaceans|url=https://pubs.geoscienceworld.org/geology/article/41/11/1179-1182/131064|journal=Geology|language=en|volume=41|issue=11|pages=1179–1182|doi=10.1130/G34768.1|bibcode=2013Geo....41.1179K|issn=0091-7613}}</ref> The earliest planktonic foraminifera, which constitute the suborder [[Globigerinina]], are known from the late Early Jurassic (mid-Toarcian) of the western Tethys, expanding across the whole Tethys by the Middle Jurassic and becoming globally distributed in tropical latitudes by the Late Jurassic.<ref>{{Cite journal|last1=Hudson|first1=Wendy|last2=Hart|first2=Malcolm B.|last3=Smart|first3=Christopher W.|date=2009-01-01|title=Palaeobiogeography of early planktonic foraminifera|url=https://pubs.geoscienceworld.org/sgf/bsgf/article/180/1/27/123101/Palaeobiogeography-of-early-planktonic|journal=Bulletin de la Société Géologique de France|language=en|volume=180|issue=1|pages=27–38|doi=10.2113/gssgfbull.180.1.27|issn=1777-5817}}</ref> [[Coccolithophore]]s and [[dinoflagellate]]s, which had first appeared during the Triassic, radiated during the Early to Middle Jurassic, becoming prominent members of the [[phytoplankton]].<ref>{{Cite journal|last1=Wiggan|first1=Nickolas J.|last2=Riding|first2=James B.|last3=Fensome|first3=Robert A.|last4=Mattioli|first4=Emanuela|date=2018-05-01|title=The Bajocian (Middle Jurassic): A key interval in the early Mesozoic phytoplankton radiation|url=http://www.sciencedirect.com/science/article/pii/S0012825217305214|journal=Earth-Science Reviews|language=en|volume=180|pages=126–146|bibcode=2018ESRv..180..126W|doi=10.1016/j.earscirev.2018.03.009|issn=0012-8252}}</ref> [[Microconchida|Microconchid]] tube worms, the last remaining order of [[Tentaculita]], a group of animals of uncertain affinities that were convergent on ''[[Spirorbis]]'' tube worms, were rare after the Triassic and had become reduced to the single genus ''[[Punctaconchus]],'' which became extinct in the late Bathonian.<ref>{{Cite journal|last1=Zatoń|first1=M.|last2=Taylor|first2=P.D.|date=2009-12-31|title=Microconchids (Tentaculita) from the Middle Jurassic of Poland|url=http://www.geology.cz/bulletin/contents/art1167|journal=Bulletin of Geosciences|language=en|pages=653–660|doi=10.3140/bull.geosci.1167|issn=1802-8225|doi-access=free}}</ref> The oldest known [[diatom]] is from Late Jurassic–aged amber from Thailand, assigned to the living genus ''[[Hemiaulus]].''<ref>{{Cite journal|last1=Girard|first1=Vincent|last2=Saint Martin|first2=Simona|last3=Buffetaut|first3=Eric|last4=Saint Martin|first4=Jean-Paul|last5=Néraudeau|first5=Didier|last6=Peyrot|first6=Daniel|last7=Roghi|first7=Guido|last8=Ragazzi|first8=Eugenio|last9=Suteethorn|first9=Varavudh|date=2020|editor-last=Saint Martin|editor-first=J.-P.|editor2-last=Saint Martin|editor2-first=S.|title=Thai amber: insights into early diatom history?|journal=BSGF – Earth Sciences Bulletin|volume=191|pages=23|doi=10.1051/bsgf/2020028|issn=1777-5817|doi-access=free|hdl=11577/3391076|hdl-access=free}}</ref>