
handle: 10396/8705
Sporcs of brJOphyt~s and p~cridophyt~s are dcscrib~d from Holoccnc sc di· mc:nls from Buenos Aires Province, Argentin a. Four genera o( bryorh)1CS: Riaia, Riel/a, Alll· /¡()(.eros and Pllacoceros .:md seven genera of pteridophytcs: Pi!rtlario, Aznl!a, Anemia, Notllo· faena, DOfj10plCris, Ot!!ilamilc.r o Pe/laca and PtHypotlium h:we been dCiermiucd. From their mcrphological \'ariations four spc:cics llclonging to thc gcnu.~ Pf¡acoccros h~\'C. bccn found: P. larn;s, P. rc1111is, P. bulbiculoms and P. curolinilmus . Thc morphological auai)'Si!J of the pre· st:nl da;· gcnc.r;, of Adiant:~ceae from Uut:.m~ Aires Provino: JIIO"-'Ccl 10 cl assify the fo~il sporcs lacking a perispore as Q¡cifamJ:cs or Pcl!aca. This rcsc:'lrch comait utcs lht lirst cvidcnce of thc cstab!ishmcnl of ptcridophytcs in thc arca of Vcntania (Buenos Aires Provincc) and ils relation to the probable rnigratory routc:s during the Holoc..1:ne amiJug thc AndcanPamrc:~ n, Austrai·Anl ilrCiic .1nd ALL~r;l!· Br.17.il ian p1L':ridorh)1k nora. PaiL!Ocnvironmcnl:ll irnpli cations of spores of bryoph)'1es antl preridüphyw, are: tlifliwlt lo inrerprc:l indepcndent of thc po llcn rccords Jnd tl'lcy only yicld information on local cnvironm~ nt ol condi tions..
Se describen csporJ!i de briu fil a~ y pteridolit~s provcnh.:nlc~ de ~imen to.i. del Holoccno de la Pro\·incia tJc Buenos Aires, Argcntin:l. Se diferenciaron cu.:uro géneros de brio lilas: Ricciu, Riclfo, A!lllroccros y Plumxcrvs )' sicle géneros de ptcridofitas: Piluloria, Anemia, Notl10laenfJ, DotyOpten·s, Cheilomlrt>s o Pclhmr y Pol)1wtJium. ~e determinaron cua· tro especie..~ del género Pllccoeeros : P. !ae1 is, P. umuis, P. hulhiculoms y P. caroli11imws a part ir de sus \'Jriacioncs morfológic:~s. El ;m51isi.s morfológico de los géneros actuales de Ac.liantuceac c.lc la Provincia de Bu~nos Aires permitió asignar l:~s C~JXIra.s fósiles carentes d-e perisporio al género Clwiftmthcs o Pcl!rtt•a. E:,tc !rabajtl con~tituyc b primcr;t t-\1d~ncia del establecimiento de: Jlleridolitas en el .~ rca de Ventania y su rclat:ión con las posihlc~ rutas migratorias entre las noras ptcridofitic:.s :w
Briofitas, Pteridophytes, Pteridofitas, Briophytes, Buenos Aires (Argentina), Holoceno
Briofitas, Pteridophytes, Pteridofitas, Briophytes, Buenos Aires (Argentina), Holoceno
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