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The Importance of Itaboraí Basin (Paleocene) As the Home to Early Records of Many Pulmonate Snail Families

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The Importance of Itaboraí Basin (Paleocene) As the Home to Early Records of Many Pulmonate Snail Families THE IMPORTANCE OF ITABORAÍ BASIN (PALEOCENE) AS THE HOME TO EARLY RECORDS OF MANY PULMONATE SNAIL FAMILIES Rodrigo Brincalepe Salvador¹ ^$:C0:RQ`8`QR`1$Q8G$I:1C8HQI_ , Luiz Ricardo Lopes de Simone¹ ^C`$1IQJV%$]8G`_ ¹Universidade de São Paulo, Museu de Zoologia (MZUSP) RESUMO INTRODUCTION Os calcários da Bacia de Itaboraí The limestone formation of the Itaboraí (Paleoceno Médio a Superior), Rio de Janeiro, Basin at São José de Itaboraí, Rio de Janeiro, Brasil, são famosos por sua abundante fauna ,4#&65#-5..,5%()1(535#.-5/((.5'''&#(5 de mamíferos, mas também possuem uma rica fauna (Bergqvist et al 865hfflC85)10,65."#-5.#(35 fauna de 17 espécies de gastrópodes pulmonados. -#(5&-)5",),-55,#"5 /(5) 51&&7*,-,05 Os registros fósseis mais antigos das famílias pulmonate snails: 18 species have been described Orthalicidae e Strophocheilidae são de Itaboraí. .)5 .65 '#(&35 #(5 /&#'/&#I,."&##5 Cerionidae, Clausiliidae, Ellobiidae e Urocoptidae B#!85 g:5 #')(5 ;5 44&#,65 goojC85 )&&)1#(!5 não possuem representantes vivos que chegam tão mammal correlations, the Itaboraí limestones are ao sul da América do Sul como no Rio de Janeiro; ()15 !,5 .)5 5 ) 5 **,5 &)(5 &.")/!"5 além disso, os registros de Charopidae, Clausiliidae, the S1 stratigraphic sequence sensu Medeiros Cerionidae, Urocoptidae e Vertiginidae estão ;5 ,!+0#-.5 BgoooC65 1",5 &&5 ')&&/--5 (5 5 entre os mais antigos conhecidos no mundo. found, has been considered as Middle Paleocene Considerando esse registro tão diverso, é estranho (Medeiros & Bergqvist, 1999). Some of the que essa fauna seja pouco conhecida, já que pode molluscan species found in sequence S1 can also ajudar a responder diversas perguntas sobre 5 )/(5#(5-+/(5h651",5."5'$),#.35) 5 biogeografia e sistemática. the mammalian fauna is (Bergqvist et al ., 2006). Palavras-chave: Biogeografia, Pulmonata, .),ù]-5,&35()4)#5!5(5&).#)(5'%5 Rio de Janeiro its fossils critical in understanding the evolution of South American taxa and their biogeographic ABSTRACT "#-.),385 "5 .),#(5 /(5 *,-(.-5 -)'5 ) 5 the first record for extant molluscan families The limestones of Itaboraí Basin (Middle (5,),-5) 5*-.5#-.,#/.#)(51",5."5&#0#(!5 to Upper Paleocene), Rio de Janeiro, Brazil, are ,&.#0-5(5().55 )/(5.)35(3'),8 famous for the abundant mammalian fauna, /.5 ."35 &-)5 ",),5 5 ,#"5 /(5 ) 5 gm5 -*#-5 THE PULMONATE FAMILIES of pulmonate snails. The oldest fossil records of the families Orthalicidae and Strophocheilidae OF ITABORAÍ BASIN are from Itaboraí. Cerionidae, Clausiliidae, 95 ,#)(#5 1-5 ().5 Ellobiidae and Urocoptidae do not have living *,-(.5#(5 .),ù5-#(5/(.#&5,(.&3955,0#-#)(5 representatives so far south in South America ) 5."5!(/-5,-#&((65 ),',&35#(5.,*.2#65 -5 #)5 5 (#,):5 #.#)(&&365 ."5 ,),-5 ) 5 has placed it in Cerionidae and made it the second Charopidae, Clausiliidae, Cerionidae, Urocoptidae !(/-5#(5."5 '#&35-#-5,#)(5B&0),5et al ., (5,.#!#(#5,5')(!5."5)&-.5%()1(5#(5 -/'#..C85",5,5.1)5,-#&((5-*#-5#(5 ."51),&85)(-#,#(!5-/"5#0,-5,),65#.5#-5 .),ù5B5."#,5)(51-5,(.&35 )/(:5&0),5 -.,(!5 .".5 ."#-5 /(5 #-5 ().5 1&&5 %()1(5 -#(5 ;5 #')(65 #(5 *,*,.#)(C6585 ,."/-5 /,365 #.5 (5 "&*5 (-1,#(!5 '(35 #)!)!,*"35 (5 1935 (Fig. 1A) and B. minor (Trindade, 1956) -3-.'.#-5+/-.#)(-8 B#!85gC65/.5."5 #,-.5 )--#&5,),5) 5."5 '#&35 Keywords: #)!)!,*"365/&')(.65#)5 is a probable Cerion acherontis from the Upper de Janeiro Cretaceous of Montana, USA (Roth & Hartman, goonC85 0(5 # 5 ,-#&((5 #-5 ().5 ."5 '#&3]-5 fluminensis (Brito, 1967) (Fig. 1M), a record inside #,-.5,),65#.5#-5(5#(.,-.#(!5,),5)(5#.-5)1(5 the distribution of living representatives of the ),5 .),ù5-#(5#-5 ,5 ,)'5."5 '#&3]-5,(.5 '#&385&(),#5"-5(52.(-#05 )--#&5,),65 distribution, i.e., southernmost North America ."5)&-.5#(!5 ,)'5."5 /,--#5) 53)'#(!65 (islands south of Florida) and the Caribbean USA (Yen & Reeside, 1946); although Meier- Islands. Brook (1984) considers planorbid fossils earlier CHAROPIDAE: Austrodiscus lopesi than Cenozoic as doubtful. ,,#,5;5)&")65gono51-5),#!#(&&35&--# #5 STROPHOCHEILIDAE: Eoborus -5())(.#5/.65-5."5!(/-51-5.,(- ,,5 sanctijosephi B /,365goikC5B#!85gC5#-5/,,(.&35 to Charopidae (Fonseca & Thomé, 1993), so is ."5 )(&35 -.,)*")"#&#5 -*#-5 #(5 .),ù5 this species. This record is the second oldest (another Eoborus 5 -*#-5 1-5 ,(.&35 )/(:5 %()1(5 ),5."5 '#&35B."5)&-.5#(!5 ,)'5."5 Salvador & Simone, in preparation) and represents Cretaceous of Argentina; Morton, 1999) and ."5 '#&3]-5)&-.5,),5.)!.",51#."5Eoborus .),ù]-5&)&#.35#-5-&#!".&35) 5.)5."5-.5) 5."5 charruanus , a species from the Paleocene of '#&3]-5 ,(.5 #-.,#/.#)(5 B."5 ',#-65 .85 ,/!/350,35-#'#&,5to E. sanctijosephi (Martínez Helena Island, southern Africa, the Asian Pacific et al 865goomC85"-5,),-5 &&51#."#(5."5 '#&3]-5 Islands and Oceania). recent distribution. 95 "5 )(&35 &/-#&##5 95 "5 )(&35 /,))*.#5 from Itaboraí is Clausilia m agalhaesi Trindade, %()1(5#(5 .),ù5#-5Brachypodella britoi Ferreira goki5B#!85gC655,),5.".5#-5-)'1".5,')05 ;5 )&")65 gomg5 B#!85 gC65 ")10,5 ."5 )&-.5 ,)'5."5*,-(.5#-.,#/.#)(5) 5."5 '#&35B."5 ,),-5 ) 5 ."5 '#&35 )'5 ,)'5 ."5 **,5 South American species are restricted to the Cretaceous of Canada and Mexico (Tozer, 1956; (),."1-.,(5*,.5) 5."5)(.#((.C85"5 '#&35 Perrilliat et al ., 2000). Still, B. britoi is a record far #-5%()1(5-#(5."5,.)/-5) 5/,)*5B)&'65 135 ,)'5.".5) 5,(.5/,))*.#-5B-)/.",(')-.5 1976), but this is the oldest record for South North America, Central America, the Caribbean America. Islands, and northernmost South America). ELLOBIIDAE: Carychium sommeri VERTIGINIDAE: Vertigo mezzalirai ,,#,5 ;5 )&")65 gomg5 B#!85 gC5 #-5 ."5 )(&35 Ferreira & Coelho, 1971 (Fig. 1P). Vertiginidae &&)##5 #(5 .),ù5 (5 #.]-5 )/.-#5 ."5 '#&3]-5 "-5 5 1),&1#5 #-.,#/.#)(5 (5 ,(.5 -*#-5 recent distribution, since there are no extant )/,5 #(5 ,4#&85"5 '#&35 #-5 %()1(5 -#(5 ."5 &&)##5#(5,4#&85"5 '#&35#-5%()1(5-#(5."5 Cretaceous of Japan (Isaji, 1976), but this is the Jurassic of USA and Europe (Yen & Reeside, oldest record for South America. 1946; Solem, 1976). 95 "#-5 '#&35 -")1-5 CONCLUSION 5 2.(-#05 ,),5 #(5 .),ù65 1#."5 &')-.5 "& 5 The oldest fossil records of the families of the basin’s fauna: Bulimulus fazendicus 5 /,365 1935 (Fig. 1E), B. fe rreirai Palma & Brito, 1974 Orthalicidae and Strophocheilidae comes from (Fig. 1F), B. sommeri Palma & Brito, 1974 (Fig. the limestones of Itaboraí Basin. Cerionidae, 1G), Itaborahia carvalhoi (Brito, 1967) (Fig. 1H), Clausiliidae, Ellobiidae, Urocoptidae do not have I. coelhoi (Palma & Brito, 1974) (Fig. 1I), I. lamegoi living representatives reaching so far south in I. trinda deae (Ferreira & South America as Rio de Janeiro. Moreover the /,365goik5B#!85g C65 records of Charopidae, Clausiliidae, Cerionidae, )&")65gomgC5B#!85g C85#.#)(&&3655*)--#&5 Urocoptidae and Vertiginidae are among the Cyclodontina 5 1-5 )/(5 ,(.&35 B&0),5 ;5 Simone, in preparation). The records are the )&-.5 %()1(5 #(5 ."5 1),&85 )(-#,#(!5 -/"5 5 vast and diverse record of pulmonates in Itaboraí, )&-.5%()1(5 ),5."5 '#&35(5 &&51&&51#."#(5 its current distribution. #.5#-5-.,(!5.".5."#-5 /(5#-5().51&&5%()1(5(5 95 ",5 ,5 .1)5 #.5#-50(5#!(),5#(5-)'51),%-5&#(!51#."5."5 planorbids in Itaboraí Biomphalaria itaboraiensis )--#&5,),5) 5."50,35 '#&#-5*,-(.5#(5 .),ù85 (Mezzalira, 1946) (Fig. 1L) and Vorticifex "5-#(]-5 )--#&5,),5#-5,#"5()/!"5.)5(-1,5 '(35+/-.#)(-5) 5')&&/-(5*&)#)!)!,*"35 MORTON, L.S. 1999. El genero Radiodiscus (5-3-.'.#-8 (Gastropoda-Endodontoidea) en el Cretacico temprano, provincia de Santa REFERENCES Cruz Argentina. Revista da Universidade de Guarulhos (Geociencias) IV(6): 46-49. BERGQVIST, L.P.; MOREIRA, A.L. & PINTO, D.R. 2006. Bacia de São José de PERRILLIAT, M.C.; VEGA, F.J. & CORONA, Itaboraí: 75 Anos de História e Ciência. 85 hfff85 ,&35 -.,#".#(5 )&&/-5 Serviço Geológico do Brasil, CPRM, Rio de from the Mexcala Formation of the state Janeiro. 84 p. of Guerrerro, Southern Mexico. Journal of &)(.)&)!35mj95m@hj85 FONSECA, A.L.M & THOMÉ, J.W. 1993. ROTH, B. & HARTMAN, J.H. 1998. A -,#éã)5 5 &,)!3,5 -/!(85 (865 probable Cerion (Gastropoda: Pulmonata) ,,.,#4éã)5 5 /-.,)#-/-5 .1)'3#5 (Parodiz, 1954) e reclassi<cação das espécies from Uppermost Cretaceous Hell Creek sul-americanas dos gêneros Austrodiscus ),'.#)(65 ,ŀ&5 )/(.365 )(.(85 Parodiz, 1957, Radioconus Baker, 1927, PaleoBios 18(2&3): 16–20. #))'/-5 %,65 goif5 5 ,)")!35 SALVADOR, R.B.; ROWSON, B. & SIMONE, 3,/"65golk5B",)*#C55#&")!3,5 88 85 71,#.#(!5 ."5 )--#&5 "#-.),35 ) 5 3,/"65 golk5 B&#)#-#C5 ,#)(#5 B-.,)*)65 /&')(.C95 (15 B-.,)*)65 .3&)''.)*"),65 Endodontoidea). Iheringia (série Zoologia) '#&35--#!('(.5) 5."5,4#&#(5&)(5 75: 97–105. !(/-5 ,-#&((5 /,365 goik85 )/,(&5 ) 5 Molluscan Studies. (Submitted). 65 85 hfgf85 ,,-.,#&5 (5 ,-"1.,5 SIMONE, L.R.L. & MEZZALIRA, S. 1994. /&')(.5 -.,)*)-5 ,)'5 ."5 ,&35 Fossil Molluscs of Brazil. Boletim do ,.)/-5 /1$#'5 ),'.#)(65 .),#5 Instituto Geológico 11: 1–202. Group, Japan. Paleontological Research 14(4): 233–243. SOLEM, A. 1976. Biogeographic signi<cance of land snails, Paleozoic to Recent. In: GRAY, ±65 8:5 65 85 ;5 J. & BOUCOT, A.J. (Eds.). Historical VERDE, M. 1997. Primer registro del #)!)!,*"395 &.5 .)(#-5 (5 ."5 &)()5 (5 &5 ,/!/395 *&)-/&)-5 Changing Environment - Proceedings of calcareos fosiliferos en la Cuenca de Santa Lucia. Revista Brasileira de Geociências ."5 #)&)!35 )&&)+/#/'5 im85 ,!)(5 ..5 27(3): 295–302. (#0,-#.35,--6585*85hmm@hnm85 TOZER, E.T. 1956. Uppermost Cretaceous and MEDEIROS, R.A. & BERGQVIST, L.P. 1999.
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