Description of the stratotype section and proposal of hypostratotype section of the Lower Cretaceous Quiricó formation, São Francisco Basin, Brazil

LEITE, AMANDA M.; CARMO, DERMEVAL A. DO

doi:10.1590/0001-3765202120201296

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GEOSCIENCES • An. Acad. Bras. Ciênc. 93 (suppl 2) • 2021 • https://doi.org/10.1590/0001-3765202120201296 copy

Description of the stratotype section and proposal of hypostratotype section of the Lower Cretaceous Quiricó formation, São Francisco Basin, Brazil

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

The Quiricó Formation presents an abundant and diversified fossil record, and is the only formation from the Cretaceous of the São Francisco basin with the occurrence of ostracodes. This formation was described from the banks of the Quiricó creek, tributary of the Prata river, which is the type locality. However, a stratotype section was not described. The present work presents the description of the stratotype section of the Quiricó Formation and proposal of hypostratotype section, based on the lithologic description and fossiliferous occurrences. The studied sections are located in the Minas Gerais State, Brazil: 1. stratotype section of the Quiricó Formation, by the banks of Quiricó and São José creeks, Presidente Olegário County; 2. hypostratotype section of the Tereza Farm, near the Olhos D’água community, João Pinheiro County.

Key words
Hypostratotype section; Ostracoda; Quiricó Formation; Stratotype section

TAXA
Gymnospermae – Coniferophyta – Brachyphyllaceae	Brachyphyllum obesum Heer 1881	In Duarte (1997)
Gymnospermae – Coniferophyta – Podozamitaceae	Podozamites lanceolatus (Lindley and Hutton 1936) Braun 1843	In Duarte (1997)
Angiospermae – Nymphaeales – Nymphaeaceae	Nymphaeites choffatii (Sap.) Teixeira 1947	In Duarte (1997)
Angiospermae – Poales – Poaceae	Paraleptaspis varjensis Duarte 1997	In Duarte (1997)
Angiospermae (palynomorphs)	Deltoidospora sp.	In Lima (1979)
	Punctatasporites sp.	In Lima (1979)
	Sergipea sp.	In Lima (1979)
	Transitoripollis crisopolensis (Regali et al. 1974) emend. Dino 1994	In Lima (1979)
	Inaperturopollenites sp.	In Lima (1979)
	Araucariacites australis Cookson 1947	In Lima (1979)
	Classopollis classoides Pflug 1953	In Lima (1979)
	Classopollis torosus (Reissinger 1950)	In Lima (1979)
	Monocolpopollenites sp. 1	In Lima (1979)
	Monocolpopollenites sp. 2	In Lima (1979)
	Cycadopites sp. 1	In Lima (1979)
	Cycadopites sp. 2	In Lima (1979)
	Clavattipollenites sp.	In Lima (1979)
	Retimonocolpites sp.	In Lima (1979)
	Eucommiidites minor Groot & Penny 1960	In Lima (1979)
	Psilatricolpites psilatus Pierce 1961	In Lima (1979)
	Exesipollenites tumulus Balme 1957	In Lima (1979)
	Afropollis spp.	In Arai et al. (1995)
	Araucariacites spp.	In Arai et al. (1995)
	Bennettitaepollenites regaliae Dino 1994	In Arai et al. (1995)
	Callialasporites sp.	In Arai et al. (1995)
	Cicatricosisporites spp.	In Arai et al. (1995)
	Cicatricosisporites microstriatus Jardine & Magloire 1965	In Arai et al. (1995)
	Classopollis spp.	In Arai et al. (1995)
	Eucommiidites spp.	In Arai et al. (1995)
	Gnetaceaepollenites barghoornii Pocock 1964	In Arai et al. (1995)
	Inaperturopollenites spp.	In Arai et al. (1995)
	Leiosphaeridia spp.	In Arai et al. (1995)
	Liliacidites kiowaensis Ward 1986	In Arai et al. (1995)
	Retimonocolpites sp.	In Arai et al. (1995)
	Sergipea cf. naviformis Regali et al. 1974	In Arai et al. (1995)
	Tricolpites cf. vulgaris Pierce in Srivastava 1969	In Arai et al. (1995)
Metazoa – Arthropoda – Insecta – Heteroptera	Saucrolus silvai Santos 1971	In Santos (1971)
Metazoa – Arthropoda - Spinicaudata	Platyestheria abaetensis Cardoso 1971	In Cardoso (1971)
	Cyzicus cf. barbosai (Almeida 1950)	In Cardoso (1971)
	Palaeolimnadiopsis freybergi Cardoso 1971	In Cardoso (1971)
	Palaeolimnadiopsis cf. reali (Teixeira 1960)	In Cardoso (1971)
Metazoa – Vertebrata – Chondrichthyes – Hybodontiformes	Hybodontiformes indet.	In Carvalho & Maisey (2008)
	?Tribodus sp.	In Fragoso et al. (2019)
	Hybodontiformes indet. Morphologies 2 to 8	In Fragoso et al. (2019)
Metazoa – Vertebrata – Osteichthyes – Actinopterygii - Seminotiformes	Semionotiformes indet.	In Carvalho & Maisey (2008)
Metazoa – Vertebrata – Osteichthyes – Actinopterygii – Amiiformes	Amiidae indet.	In Carvalho & Maisey (2008)
Metazoa – Vertebrata – Osteichthyes – Actinopterygii – Gonorynchiformes	Dastilbe moraesi Santos 1955	In Scorza & Silva Santos (1955)
Metazoa – Vertebrata – Osteichthyes – Actinopterygii - Neopterygii	Gen. et sp. indet.	In Bittencourt et al. (2017)
Metazoa – Vertebrata – Osteichthyes – Actinopterygii – Osteoglossiformes	Laeliichthys ancestralis Santos 1985	In Santos (1985)
Metazoa – Vertebrata – Osteichthyes – Sarcopterygii – Coelacanthiformes	Mawsonia gigas Woodward 1907	In Carvalho & Maisey (2008)
Metazoa – Vertebrata – Osteichthyes – Sarcopterygii – Dinosauria - Sauropoda	Tapuiasaurus macedoi Zaher et al. 2010	In Zaher et al. (2011)
	Rebbachisauridae	In Carvalho & Santucci (2018)
Metazoa – Vertebrata – Osteichthyes – Sarcopterygii – Dinosauria – Theropoda	Abelisauroidae indet.	In Zaher et al. (2011)
	Nosauridae	In Silva (2013)
	cf. Carcharodontosauridae	In Carvalho & Santucci (2018)
	Abelisauridae	In Carvalho & Santucci (2018)

Specimen	Geographic distribution	Stratigraphic distribution
Harbinia sp. 1	São Francisco basin, Quiricó Formation (Do Carmo et al. 2004)	Barremian
Harbinia sp. 2	Africa, Gabon basin, Mediéla Formation (Grosdidier 1979) São Francisco basin, Quiricó Formation (Do Carmo et al. 2004)	Upper Aptian Barremian
Harbinia aff. Harbinia angulata (Krömmelbein & Weber 1971)	Sergipe-Alagoas basin, Riachuelo Formation (Krömmelbein & Weber 1971) Araripe basin, Santana Formation, Romualdo Formation (Poropat & Colin 2012) Cedro basin, in strata correlated to the Crato Formation (Tomé 2007) Jatobá basin, Serra Negra (Tomé et al. 2014) São Francisco basin, Quiricó Formation (Leite et al. 2018)	Upper Aptian Aptian Aptian Upper Aptian Barremian-Aptian
Harbinia symmetrica (Krömmelbein & Weber 1971)	Parnaíba basin, Codó Formation (Krömmelbein & Weber 1971, Ramos et al. 2006) Araripe basin, Santana Formation, Crato, Ipubi and Romualdo members, and Rio da Batateira Formation (Coimbra et al. 2002, Ramos et al. 2006, Antonietto 2010) África, Congo, Gabão and Angola basins (Bate 1999) São Francisco basin, Quiricó Formation (Leite et al. 2018)	Upper Aptian Aptian Barremian Aptian
Harbinia aff. Harbinia salitrensis (Krömmelbein & Weber 1971)	Araripe basin, Santana Formation, Romualdo Member (Krömmelbein & Weber 1971, Antonietto et al. 2012, Poropat & Colin 2012, Tomé et al. 2014) Grajaú basin, Codó Formation (Do Carmo et al. 2008) São Francisco basin, Quiricó Formation (Leite et al. 2018)	Aptian Aptian Aptian
Harbinia alta Antonietto et al. 2012	Grajaú basin, Codó Formation (Ramos et al. 2006, Do Carmo et al. 2008) Araripe basin, Santana Formation, Crato e Romualdo members (Viana et al. 1989, Silva-Telles Jr. & Viana 1990) Potiguar basin, Alagamar Formation (Do Carmo et al. 2013) Jatobá basin, Serra Negra (Tomé et al. 2014) São Francisco basin, Quiricó Formation (Leite et al. 2018)	Upper Aptian Aptian-Albian Medium-Upper Aptian Upper Aptian Aptian
Harbinia aff. Harbinia crepata Do Carmo et al. 2013	Araripe basin, Santana Formation, Crato Member (Silva-Telles Jr. & Viana 1990) Potiguar basin, Alagamar Formation (Do Carmo et al. 2013) São Francisco basin, Quiricó Formation (Leite et al. 2018)	Aptian Medium-upper Aptian Barremian-Aptian
Brasacypris sp. 1	São Francisco basin, Quiricó Formation (Do Carmo et al. 2004)	Barremian
Brasacypris ovum Krömmelbein 1965b emend. Leite et al. 2018	Tucano basin, Itaparica and Candeias Formation (Krömmelbein 1965) São Francisco basin, Quiricó Formation (Leite et al. 2018)	Lower Cretaceous, Berriasian Lower Cretaceous, Valanginian to Aptian
Brasacypris fulfaroi Dias-Brito et al. 2001	Paraná basin, Bauru Group, Adamantina Formation (Dias-Brito et al. 2001) São Francisco basin, Quiricó Formation (Leite et al. 2018)	Upper Cretaceous Lower Cretaceous, Valanginian to Barremian?
Ilyocypris sp. 1	São Francisco basin, Quiricó Formation (Do Carmo et al. 2004)	Barremian
Cypridea hystrix Krömmelbein 1962 emend . Leite et al. 2018	Recôncavo basin, Ilhas Formation, Rio da Serra Stage (Krömmelbein 1962, Poropat & Colin 2012) São Francisco basin, Quiricó Formation (Leite et al. 2018)	Lower Cretaceous, Berriasian to Valanginian Lower Cretaceous, Valanginian
Cypridea conjugata Krömmelbein & Weber 1971 emend . Leite et al. 2018	Recôncavo basin, São Sebastião Formation (Krömmelbein & Weber 1971, Poropat & Colin 2012) São Francisco basin, Quiricó Formation (Leite et al. 2018)	Lower Cretaceous, Barremian Lower Cretaceous, Valanginian
Cypridea infima Krömmelbein & Weber, 1971 emend . Leite et al. 2018	Recôncavo basin, Formação Candeias, porção média e inferior (Krömmelbein & Weber 1971, Poropat & Colin 2012) São Francisco basin, Formação Quiricó (Leite et al. 2018)	Lower Cretaceous, Berriasian Lower Cretaceous, Valanginian to Aptian?
Cypridea jequiensis Krömmelbein & Weber, 1971	Sergipe-Alagoas basin, Jiquiá Formation, Post Bahia Series (Krömmelbein & Weber 1971, Poropat & Colin 2012, Antonietto 2015) São Francisco basin, Quiricó Formation (Leite et al. 2018)	Lower Cretaceous, Barremian-Aptian Lower Cretaceous, Valanginian
Cypridea sp. 1	São Francisco basin, Quiricó Formation (Do Carmo et al. 2004)	Barremian
Bisulcocypridea ? sp. 1	São Francisco basin, Quiricó Formation (Do Carmo et al. 2004)	Barremian
Neuquenocypris ( Protoneuquenocypris ) antiqua Musacchio & Simeoni 1991	D-129 Formation, Chenques hill, Chubut Province (Musacchio & Simeoni 1991, Ballent et al. 2011) Austral basin, Piedra Clavada Formation, Santa Cruz (Ballent et al. 2011) São Francisco basin, Quiricó Formation (Leite et al. 2018)	Aptian Lower-upper Albian Valanginian
Darwinula sp. 1	Argentina, Chubut Group, Fortím hill Formation, Barcino hill Member (Musacchio & Chebli 1975) São Francisco basin, Quiricó Formation (Do Carmo et al. 2004)	Lower Cretaceous (Aptian?) Barremian
Darwinula sp. 2	São Francisco basin, Quiricó Formation (Do Carmo et al. 2004)	Barremian
Darwinula sp. 3	São Francisco basin, Quiricó Formation (Do Carmo et al. 2004)	Barremian
Penthesilenula martinsi (Silva 1978) emend. Do Carmo et al. 2004	Araripe basin, Santana Formation, Crato Member and base of the Ipubi Member (Silva 1978, Silva-Telles Jr. & Viana 1990, Colin & Dépêche 1997) Potiguar basin, Alagamar Formation (Do Carmo et al. 2013) São Francisco basin, Quiricó Formation (Leite et al. 2018)	Aptian Medium to upper Aptian Lower Cretaceous, Valanginian-Barremian
Penthesilenula pintoi Leite et al. 2018	São Francisco basin, Quiricó Formation (Leite et al. 2018)	Lower Cretaceous, Valanginian-Aptian
Alicenula longiformis Leite et al. 2018	São Francisco basin, Formação Quiricó (Leite et al. 2018)	Lower Cretaceous, Valanginian-Barremian?
Timiriasevia sanfranciscanensis Leite et al. 2018	São Francisco basin, Quiricó Formation (Leite et al. 2018)	Lower Cretaceous, Valanginian
Wolburgiopsis plastica (Musacchio 1970)	Argentina, Neuquén Province, La Amarga Formation (Musacchio 1970) São Francisco basin, Quiricó Formation (Do Carmo et al. 2004)	Barremian Barremian
Wolburgiopsis chinamuertensis (Musacchio 1970)	Argentina, Neuquén Province, La Amarga Formation, “Margas y Calizas” Member (Musacchio 1970) São Francisco basin, Quiricó Formation (Do Carmo et al. 2004)	Barremian Barremian

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[1] Correspondence to: Amanda Moreira Leite E-mail: amanda_mleite@hotmail.com