Gymnosperms from the Early Cretaceous Crato Formation (Brazil). II. Cheirolepidiaceae

Kunzmann, Lutz; Mohr, Barbara A. R.; Bernardes-de-Oliveira, Mary Elizabeth Cerruti; Wilde, Volker

doi:10.1002/mmng.200600009

Cited by 49 publications

(23 citation statements)

References 37 publications

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“…Negev flora consists of 18 genera of ferns, gymnosperms and angiosperms, with only 6 taxa of angiosperms (Krassilov and Schrank 2011). In contrast, Crato flora has about 70 to 80 taxa of pteridophytes, gymnosperms and angiosperms, with about 30 angiosperm taxa (Kunzmann et al 2006;Mohr et al 2007). During the Early Cretaceous, the Jordan bordered on Tethys Seaway, which was located to the north and northwest (Amireh 1997).…”

Section: Introductionmentioning

confidence: 95%

Floristics and Paleoecology of an Early Cretaceous Flora from Jordan

Hu¹,

Taylor

2014

Bulletin of the Peabody Museum of Natural History

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Section: Introductionmentioning

confidence: 95%

Floristics and Paleoecology of an Early Cretaceous Flora from Jordan

Hu¹,

Taylor

2014

Bulletin of the Peabody Museum of Natural History

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“…Archang.) (Kunzmann & al., 2006), cycads, and gnetophytes. The gnetophytes are remarkably diverse with representatives of Ephedraceae (Pons & al., 1992;Osborn The Early Cretaceous Aroid, Spixiarum kipea gen. et sp.…”

Section: Introductionmentioning

confidence: 99%

The Early Cretaceous Aroid, Spixiarum kipea gen. et sp. nov., and implications on early dispersal and ecology of basal monocots

Coiffard

Mohr

Bernardes-de-Oliveira

2013

TAXON

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Morphology and anatomy of a fossil monocotyledon from the late Early Cretaceous and extant monocots are compared. Anatomy was examined based on publications, while leaf morphology, especially the venation, required new observations on fresh and herbarium material. Spixiarum kipea gen. et sp. nov. belongs most likely to Araceae, and may be sister to Orontioideae or is even part of this tribe. Consequently, proto‐Araceae were most likely present during the Early Cretaceous in South America. The occurrence of Spixiarum in South America indicates a north Gondwana origin for Orontioideae and and thus may indicate a Gondwanan origin for proto‐Araceae. Sedimentological and taphonomic context indicate that Spixiarum had probably a helophytic ecology similar to living Orontioideae and formed possibly the aquatic vegetation of the Crato Lake in association with the Nymphaeales Pluricarpellatia peltata and Jaguariba wiersemana. Early Cretaceous monocotyledon remains have been rarely recorded. It is debatable if their scarceness is a sign of low diversity or may be due to taphonomic/ecologic reasons.

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“…( , 1996, Arai & al. (2001) and Batten (2007) plus studies of the megaflora reveal a wide array of spore bearing and seed plants (Crane, 1991;Kunzmann & al., 2004Kunzmann & al., , 2006Kunzmann & al., , 2007. Of the approximately 80 known taxa about 30 or more belong to angiosperms.…”

Section: Introductionmentioning

confidence: 99%

Pluricarpellatia, a nymphaealean angiosperm from the Lower Cretaceous of northern Gondwana (Crato Formation, Brazil)

Mohr

Bernardes-de-Oliveira

Taylor

2008

TAXON

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A fossil herbaceous angiosperm, Pluricarpellatia peltata gen. et sp. nov., is described from the Lower Cretaceous Crato Formation of northeastern Brazil. The description is based on several nearly complete specimens with roots, cordate, excentrically peltate to centrally peltate leaves, and flowering structures with in situ seeds. The seeds are smooth to verrucate and have the micropyle and hilum close together and have laminar placentation. Pluricarpellatia shares several characters with extant Nymphaeales, such as a rhizomatous growth form and simple, petiolate, peltate leaves, and laminar placentation. Similarities to Cabombaceae include an apocarpous gynoecium. However, the carpel morphology clearly differs from extant Cabombaceae so that Pluricarpellatia is considered to represent an extinct member of Nymphaeales, most likely branching off early in this lineage, and may thus be the most basal member of this clade described so far. In addition to Pluricarpellatia an unnamed nymphaealean plant (Taxon A), possibly belonging to the Nymphaeaceae, is described. During the late Aptian to earliest Albian representatives of Nymphaeales may have already developed a moderate diversity.

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Gymnosperms from the Early Cretaceous Crato Formation (Brazil). II. Cheirolepidiaceae

Cited by 49 publications

References 37 publications

Floristics and Paleoecology of an Early Cretaceous Flora from Jordan

Floristics and Paleoecology of an Early Cretaceous Flora from Jordan

The Early Cretaceous Aroid, Spixiarum kipea gen. et sp. nov., and implications on early dispersal and ecology of basal monocots

Pluricarpellatia, a nymphaealean angiosperm from the Lower Cretaceous of northern Gondwana (Crato Formation, Brazil)

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