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Biretisporites crassilabratus

Polypodiopsida

Taxonomy
Biretisporites crassilabratus was named by Archangelsky (1972) [Others samples: P.m. 741, coord. 43.1/116.7, 40.1/115.1. Others measurement: equatorial diameter, 39-64 µ. 15 specimens. Locality. Wells D-13, D-14, T-134, C-2, P-9, P-14, P-15.]. It is considered to be a form taxon. Its type specimen is Holotype: prep. 743 coord. 52.5/118.4. Stored at Museo de La Plata, Paleobotanical division., a microspore (spore), and it is a 3D fossil preserving soft parts. Its type locality is Pozo D-13, which is in an Eocene coastal horizon in the Río Turbio Formation of Argentina.

Sister species lacking formal opinion data
B. aegyptiaca, B. deltoideus, B. potoniai, B. potonie, B. potonieai, B. vallatus

Synonymy list
YearName and author
1972Biretisporites crassilabratus Archangelsky
2003Biretisporites crassilabratus Archangelsky and Zamaloa
2017Biretisporites crassilabratus Povilauskas p. 319
2020Biretisporites crassilabratus Santamarina et al. p. 53
2024Biretisporites crassilabratus De Benedetti et al. p. 5 figs. Plate VI, 3-4

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RankNameAuthor
kingdomPlantae
phylumPteridophyta
classPolypodiopsida
RankNameAuthor
genusBiretisporitesDelcourt et al. 1963
speciescrassilabratus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Biretisporites crassilabratus Archangelsky 1972
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Diagnosis
ReferenceDiagnosis
S. Archangelsky 1972Espora trilete de contorno ecuatorial subtriangular, de lados convexos y ángulos redondeados. Lesura 4/5 o llegando al ecuador, bordeada por labios fuertemente levantados (hasta 7 µ de alto), que en el ecuador se juntan y son continuos, en forma de semircírculo. Exina de grosor parejo, lisa, de unos 2 µ.
Measurements
partNmean
Spore diameter10.041

No ecological data are available

Age range: base of the Valanginian to the top of the Early/Lower Miocene or 137.05000 to 15.98000 Ma

Collections (43 total)


Time interval Ma Country or state Original ID and collection number
Valanginian - Barremian137.05 - 121.4Chile (Doceava Región) Biretisporites crassilabratus (150032)
Late/Upper Cretaceous - Early/Lower Paleocene100.5 - 61.66Argentina (Chubut) Biretisporites crassilabratus (195707)
Late/Upper Campanian - Early/Lower Maastrichtian83.6 - 66.0Argentina (Mendoza) Biretisporites crassilabratus (168549)
Maastrichtian72.2 - 66.0Argentina (Chubut) Biretisporites crassilabratus (199410 239891)
Maastrichtian72.2 - 66.0Argentina (Santa Cruz) Biretisporites crassilabratus (168708 168710 234760 234761 240042 240044 240045 240046 240049 240056 240527)
Danian66.0 - 61.66Argentina (Santa Cruz) Biretisporites crassilabratus (149973 149975 240050 240053 240083 240085 240087 240089 240438 240525 240526 240545 240547 240548)
Danian66.0 - 61.66Argentina (Chubut) Biretisporites crassilabratus (239892)
Eocene56.0 - 33.9Argentina (Santa Cruz) Biretisporites crassilabratus (167895 type locality: 167897 167898 167899 167900 167902 167903)
Eocene - Miocene56.0 - 5.333Argentina (Chubut) Biretisporites crassilabratus (241270)
Late/Upper Oligocene - Early/Lower Miocene27.3 - 15.98Argentina (Chubut) Biretisporites crassilabratus (143211 143212 143213)
Late/Upper Oligocene - Miocene27.3 - 5.333Argentina Biretisporites crassilabratus (169468)