Knollisphaeridium maximum, Kheseen Formation, latest Ediacaran/early Cambrian. Scale bar: 0.1 mm. (Derek Briggs via SWNS)
By Talker
Animals may have evolved up to 200 million years earlier than fossil evidence suggests, according to new research.
×
Javascript is required for you to be able to read premium content. Please enable it in your browser settings.
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96 k2 9C67lQ9EEADi^^HHH]@I]24]F<^Q E2C86ElQ03=2?<Q C6=lQ?@C676CC6C ?@@A6?6CQm~I7@C5 &?:G6CD:EJk^2m\=65 DEF5J 492==6?86D <6J 2DDF>AE:@?D D4:6?E:DED 92G6 FD65 E@ 52E6 E96 @C:8:?D @7 E96 k2 9C67lQ9EEADi^^E2=<6C]?6HD^a_ae^_h^_h^H9J\:D\E9:D\de_\>:==:@?\J62C\@=5\7@DD:=\D@\C2C6^Q E2C86ElQ03=2?<Q C6=lQ?@C676CC6C ?@@A6?6CQm62C=:6DE 2?:>2= =:76k^2m]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96 C6D62C49[ AF3=:D965 :? E96 ;@FC?2= k2 9C67lQ9EEADi^^HHH]D4:6?46]@C8^;@FC?2=^D4:25GQ E2C86ElQ03=2?<Q C6=lQ?@C676CC6C ?@@A6?6CQm$4:6?46 p5G2?46Dk^2m[ DF886DED 2?:>2=D >2J 92G6 @C:8:?2E65 566A :? E96 }6@AC@E6C@K@:4 tC2 — 6G6? 367@C6 D@>6 @7 t2CE9VD >@DE 6IEC6>6 :46 286D]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96 C6D62C49 E62> D2JD E96:C 7:?5:?8D 4@F=5 EC2?D7@C> F?56CDE2?5:?8 @7 @?6 @7 6G@=FE:@?VD 8C62E6DE >JDE6C:6Di H9J 2?:>2=D D66> E@ 2AA62C QC6=2E:G6=J DF556?=JQ :? E96 7@DD:= C64@C5 ;FDE 367@C6 k2 9C67lQ9EEADi^^E2=<6C]?6HD^a_aa^_d^`h^DEF5J\2?:>2=D\56G6=@A65\4@>A=6I\64@DJDE6>D\dd_\>:==:@?\J62CD\28@^QmE96 r2>3C:2? !6C:@5k^2m[ dbh E@ cgf >:==:@? J62CD 28@]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96J 6IA=2:?65 E92E 2E E96 46?E6C @7 E96 ?6H DEF5J :D 2 AC@3=6> H:E9 E96 H2J D4:6?E:DED 92G6 C646?E=J FD65 E96 7@DD:= C64@C5 E@ D6E 2 >2I:>F> 286 7@C E96 @C:8:? @7 2?:>2=D]k^Am
Ediacaran sea floor, Namibia, Southwest Africa - 543 million years ago. (University of Oxford via SWNS)
By Talker
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qmp C@F89=J dh_\>:==:@?\J62C\@=5 7@DD:= 56A@D:E[ <?@H? 2D E96 (6?8V2? q:@E2 :? C@4<D @7 t5:242C2? 286 :? r9:?2[ AC6D6CG6D >:4C@D4@A:4 @C82?:D>D :? 6IEC2@C5:?2CJ 56E2:=[ ?@?6 @7 H9:49 2C6 567:?:E:G6 2?:>2=D]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm$4:6?E:DED 92G6 E96C67@C6 :?76CC65 E92E E96 7:CDE 2?:>2=D >FDE 92G6 @C:8:?2E65 27E6C (6?8V2?[ 2DDF>:?8 E92E E96 Q6I46AE:@?2=Q 7@DD:= 56A@D:E H@F=5 92G6 AC6D6CG65 E96> :7 E96J 6I:DE65 2E E92E E:>6]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96 :?E6C?2E:@?2= C6D62C49 E62> 4@?5F4E65 2 4@>AC696?D:G6 DFCG6J @7 k2 9C67lQ9EEADi^^E2=<6C]?6HD^a_ae^_`^aa^2?4:6?E\7@DD:=D\C6G62=\@=56DE\<?@H?\G6CE63C2E6D\925\7@FC\6J6D^Q E2C86ElQ03=2?<Q C6=lQ?@C676CC6C ?@@A6?6CQm6I46AE:@?2==J H6==\AC6D6CG65 >:4C@7@DD:=Dk^2m 7C@> E96 z96D66? q:@E2 :? |@?8@=:2]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96 z96D66? q:@E2 :D >@C6 E92? c_ >:==:@? J62CD J@F?86C E92? (6?8V2?[ 6G6? E9@F89 E96J D92C6 D@>6 DA64:6D]k^Am
Study author Associate Professor Ross Anderson (University of Oxford) in the mountains to the west of Lake Khuvsgul, Mongolia during fieldwork in summer 2017. (Ross Anderson via SWNS)
By Talker
kA 4=2DDlQHA\3=@4<\A2C28C2A9QmqJ E92E E:>6 2?:>2= 7@DD:=D 2C6 <?@H? 7C@> D:E6D 6=D6H96C6 2C@F?5 E96 H@C=5[ :?4=F5:?8 :? }2>:3:2 2?5 D@FE96C? r9:?2]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96 C6D62C49 E62> DEF5:65 >@C6 E92? `c_ D2>A=6D[ :?4=F5:?8 D@>6 7C@> AC6G:@FD=J F?5@4F>6?E65 =@42=:E:6D[ 2?5 6I2>:?65 E96> FD:?8 D42??:?8 6=64EC@? >:4C@D4@AJ]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96 2?2=JD:D C6G62=65 Q6IBF:D:E6Q ?6H >:4C@7@DD:= DA64:6D[ :?4=F5:?8 24C:E2C49D — E:?J DA96C:42= @C82?:D>D H:E9 DA:?6D 2?5 3C2?49:?8 AC@;64E:@?D — 2D H6== 2D 6>3CJ@=:<6 7@DD:=D 4@?E2:?:?8 :?E6C?2= 46==D]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9QmqFE[ 56DA:E6 E96 C6>2C<23=6 =6G6= @7 AC6D6CG2E:@?[ ?@?6 42? 36 4@?7:56?E=J :56?E:7:65 2D 2? 2?:>2=]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm$EF5J D6?:@C 2FE9@C #@DD p?56CD@?[ 7C@> ~I7@C5 &?:G6CD:EJVD |FD6F> @7 }2EFC2= w:DE@CJ[ D2:5i Q%96 z96D66? q:@E2 3C62<D E96 2C8F>6?E E92E E96 6I46AE:@?2= >:4C@7@DD:=D @7 (6?8V2? >62? H6 H@F=5 92G6 D66? 2?:>2= 7@DD:=D :? E96 2DD6>3=286 925 E96J 6I:DE65 2E E96 E:>6]k^Am
Estimated timeline for the origin of animals based on molecular clock analyses. The grey bar on the right of the image is the origin of animals based on an Ediacaran upper calibration. The grey bar to the left is the origin based on older deposits in the Tonian period, as suggested by the new study. (Orin Lole Durbin via SWNS)
By Talker
kA 4=2DDlQHA\3=@4<\A2C28C2A9QmQ%96 z96D66? >:4C@7@DD:=D 2C6 ;FDE 2D H6==\AC6D6CG65[ J6E 2?:>2=D 4@?E:?F6 E@ 36 23D6?E — 56DA:E6 E96 724E H6 <?@H 2E E92E A@:?E E96J 6I:DE65]Qk^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qmw6 D2JD 2?:>2=D >FDE 92G6 =:G65 :? 5:776C6?E 6?G:C@?>6?ED 7C@> E9@D6 E92E AC6D6CG65 E96 7@DD:=D :? E96 z96D66? q:@E2[ @C E96 496>:42= 4@?5:E:@?D E96C6 72:=65 E@ AC6D6CG6 2?:>2= C6>2:?D]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qmv:G6? E92E E96 z96D66? q:@E2 H2D AC6D6CG65 H96? 2?:>2=D H6C6 AC6D6?E 3FE E96J 2C6 ?@?6E96=6DD ?@E AC6D6CG65 2D 7@DD:=D[ E96 C6D62C49 E62> 2C8F6D E92E (6?8V2? 5@6D?VE 2FE@>2E:42==J BF2=:7J 2D 6G:56?46 E92E ?@ 2?:>2=D 6I:DE65 2E E92E E:>6 2?5 @?=J 2AA62C65 =2E6C E92? dh_ >:==:@? J62CD 28@]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qmx?DE625[ E96J =@@<65 >F49 7FCE96C 324<[ E@ D6G6C2= 56A@D:ED 52E:?8 7C@> C@F89=J gd_ E@ fb_ >:==:@? J62CD 28@]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96D6 :?4=F565 E96 $G2?36C87;6==6E u@C>2E:@? :? }@CH2J[ q:EE6C $AC:?8D vC@FA :? pFDEC2=:2 2?5 E96 r9F2C vC@FA :? pC:K@?2[ &]$]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qmp== 2C6 7@DD:=\C:49 56A@D:ED H:E9 E96 A@E6?E:2= E@ AC6D6CG6 2?:>2=D[ 6G6? E9@F89 E96J 92G6 6=F565 5:D4@G6CJ]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qmp?56CD@? D2:5 E96 56A@D:ED 92G6 AC6G:@FD=J 366? FD65 2D >2I:>F> 52E6D 7@C E96 @C:8:? @7 2?:>2=D]k^Am
Asterocapsoides wenganensis, Kheseen Formation, latest Ediacaran/early Cambrian. Scale bar: 0.1 mm. (Derek Briggs via SWNS)
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm&D:?8 E96 @=56C 86@=@8:42= 4@?DEC2:?ED[ E96 C6D62C49 E62> FD65 2 E649?:BF6 42==65 >@=64F=2C 4=@4< 2?2=JD:D]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96 >6E9@5 4@>A2C6D 86?6E:4 5:776C6?46D 36EH66? =:G:?8 DA64:6D 2?5[ FD:?8 52E6D 7C@> E96 7@DD:= C64@C5 2D C676C6?46 A@:?ED 4@>3:?65 H:E9 C2E6D @7 6G@=FE:@?[ H@C<D 324<H2C5D E@ 6DE:>2E6 H96? E96:C 2?46DE@CD =:G65]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qmr@>A2C65 H:E9 2?2=JD:D 4@?DEC2:?65 3J E96 J@F?86C t5:242C2? (6?8V2? 56A@D:E[ E96 7C6D9 2AAC@249 D9:7E65 E96 6DE:>2E65 @C:8:? @7 2?:>2=D 324<H2C5D 3J 2C@F?5 a__ >:==:@? J62CD[ E@ 36EH66? g__ 2?5 f__ >:==:@? J62CD 28@]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qmp?56CD@? D2:5 E96C6 2C6 2=C625J 4=F6D E92E DF49 2 9:556? 9:DE@CJ 6I:DED]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qmr96>:42= 7@DD:=D[ @C 3:@>2C<6CD[ AC6D6CG65 :? 2?4:6?E C@4<D AC@G:56 6G:56?46 4@?D:DE6?E H:E9 DA@?86D =:G:?8 2E =62DE ed_ >:==:@? J62CD 28@[ E6?D @7 >:==:@?D @7 J62CD 367@C6 E96 @=56DE 567:?:E:G6 >24C@D4@A:4 2?:>2= 7@DD:=D]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96 C6D62C496CD D2:5 E9@D6 62C=J 2?:>2=D H@F=5 92G6 366? D>2== 2?5 D@7E\3@5:65[ H:E9@FE E96 D96==D[ 3@?6D @C @E96C 92C5 DECF4EFC6D E92E >2<6 =2E6C 2?:>2=D 62D:6C E@ AC6D6CG6]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm(96E96C DF49 4C62EFC6D H6C6 7@DD:=:K65 56A6?565 @? E96:C 6?G:C@?>6?E 2?5 @? 2? F?FDF2= 4@>3:?2E:@? @7 496>:42= 4@?5:E:@?D 27E6C 562E9]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qmp?56CD@? D2:5 2? @C:8:? 36EH66? g__ 2?5 f__ >:==:@? J62CD 28@ C2:D6D QDEC:<:?8 A@DD:3:=:E:6DQ E92E 2?:>2=D >2J 2=C625J 92G6 6G@=G65 367@C6 t2CE9 6?E6C65 D@>6 @7 E96 >@DE 6IEC6>6 :46 286D :? :ED 9:DE@CJ @C 6G6? 2AA62C65 5FC:?8 E92E :?9@DA:E23=6 :?E6CG2=]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9QmsFC:?8 E96 rCJ@86?:2? !6C:@5[ H9:49 3682? 2C@F?5 fa_ >:==:@? J62CD 28@[ 6?@C>@FD 8=24:6CD DAC625 24C@DD E96 A=2?6E :? 6A:D@56D 4@>>@?=J <?@H? 2D $?@H32== t2CE9]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96 ?6H DEF5J C6@A6?D BF6DE:@?D 23@FE H96E96C E96 4@?5:E:@?D 2DD@4:2E65 H:E9 $?@H32== t2CE9 A=2J65 2 C@=6 :? E96 @C:8:? 2?5 62C=J 6G@=FE:@? @7 2?:>2= =:76]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm$EF5J 7:CDE 2FE9@C ~C:? {@=6 sFC3:?[ 2? ~I7@C5 8C25F2E6 ?@H 2 !9]s] DEF56?E 2E ':C8:?:2 %649 :? E96 &]$][ D2:5i Q!C6\t5:242C2? 2?:>2= 3@5J 7@DD:=D DE:== 6=F56 FD[ 2?5 E9:D 2?2=JD:D 5@6D ?@E AC@G6 E92E 2?:>2=D 6I:DE65 g__ >:==:@? J62CD 28@]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9QmQw@H6G6C[ @FC ?6H 7@DD:= 6G:56?46 7C@> |@?8@=:2 F?56C>:?6D @?6 @7 E96 >2:? 2C8F>6?ED 7@C C6DEC:4E:?8 2?:>2= @C:8:?D E@ E96 t5:242C2? :?E6CG2=]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9QmQ|62?H9:=6[ @FC >@=64F=2C\4=@4< 2?2=JD6D D9@H 9@H >F49 7FCE96C 324< E96:C 6G@=FE:@?2CJ 9:DE@CJ 4@F=5 6IE6?5]Qk^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qm%96 C6D62C496CD D2J E92E 7FEFC6 H@C< D9@F=5 6IA=@C6 7@DD:= 56A@D:ED 7C@> 5:776C6?E C68:@?D[ C6AC6D6?E:?8 5:776C6?E 6?G:C@?>6?ED 2?5 >@56D @7 7@DD:=:K2E:@?[ :? E96 D62C49 7@C 62C=J 2?:>2=D]k^Am
kA 4=2DDlQHA\3=@4<\A2C28C2A9Qmp?56CD@? 25565i Q&?E:= E92E 6G:56?46 364@>6D 2G2:=23=6[ E96 AC64:D6 3:CE9 52E6 @7 E96 2?:>2= <:?85@> C6>2:?D F?46CE2:?]Qk^Am