Jaguariba wiersemana was a species of herbaceous, rhizomatous, aquatic plant, which occurred in the early Cretaceous period of Northern Gondwana.[1]

Jaguariba
Temporal range: 145–100.5 Ma Early Cretaceous[1]
Jaguariba wiersemana
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Order: Nymphaeales
Family: Nymphaeaceae
Genus: Jaguariba
Coiffard, B.A.R. Mohr & Bernardes-de-Oliveira[1]
Species:
J. wiersemana
Binomial name
Jaguariba wiersemana
Coiffard, B.A.R. Mohr & Bernardes-de-Oliveira[1]

Description

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Vegetative characteristics

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Jaguariba wiersemana was an aquatic herbaceous plant with up to 15 mm wide rhizomes and up to 1.5 mm wide adventitious roots. The petiolate, alternately arranged, simple leaves had elliptic-ovate, 16-53 mm long, and 19-69 mm wide leaf blades. The petioles were 42-118 mm long, and 2-6 mm wide. The leaf venation was actinodromous.[1]

Taxonomy

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Publication

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It was first described by Clément Coiffard, Barbara Adelheid Rosina Mohr, and Mary Elizabeth Cerruti Bernardes-de-Oliveira in 2013.[1]

Type specimen

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The holotype is kept in the Museum für Naturkunde, Berlin. The type locality is Nova Olinda, Brazil.[1]

Position within Nymphaeales

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It is placed within the family Nymphaeaceae.[2]

Etymology

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The generic name Jaguariba is derived from Rio Jaguaribe in Ceará, Brazil. The specific epithet wiersemana honours John Harry Wiersema.[1]

References

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  1. ^ a b c d e f g h Coiffard, C., Mohr, B. A., & Bernardes-de-Oliveira, M. E. (2013). "Jaguariba wiersemana gen. nov. et sp. nov., an Early Cretaceous member of crown group Nymphaeales (Nymphaeaceae) from northern Gondwana." Taxon, 62(1), 141-151.
  2. ^ Coiffard, C., Bernardes-de-Oliveira, M.E.C. (2020). Angiosperms in the Early Cretaceous of Northern Gondwana: A Track Record. In: Iannuzzi, R., Rößler, R., Kunzmann, L. (eds) Brazilian Paleofloras. Springer, Cham. https://doi.org/10.1007/978-3-319-90913-4_31-1