Plant and fish megafossils of the Codó Formation, Parnaı́ba Basin, NE Brazil

Duarte, Luiz A. G.; Santos, R.S

doi:10.1006/cres.1993.1049

Cited by 15 publications

(8 citation statements)

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“…For Arens and Allen (2014), Cupressinocladus is a genus characteristic of more drained areas around rivers or deltas, and Alvin (1983) considers that the Cheirolepidiaceae is an indicator of seasonally arid conditions. Thus, as expressed by the types discussed in this study, and from other ones present in the Early Cretaceous floras of Brazil (Duarte & Santos 1993, Ferreira et al 2008, Portela et al 2014, the temporary resistant condition of the vegetation to drought and to hypersaline environments, proposed by Mohr et al (2006), seems to be confirmed and coincides with the evaporitic depositional context of the Codó Formation.…”

Section: Discussionsupporting

confidence: 84%

“…5A). Duarte and Santos (1993) have suggested that N. choffati had an aquatic habitat and link it to the Nympheales by the presence of root aggregates, with well-developed calyptras, and by the jointed petiolar axis, which have been interpreted as aerenchymatous tissues by the authors.…”

Section: Remarksmentioning

confidence: 99%

“…For the Codó Formation, Parnaíba Basin, previous works have only reported the presence of angiosperm wood logs and indeterminate leaves and roots (Moraes Rego 1923, Borges 1937, Duarte 1959, which Duarte and Santos (1993) assigned to a new species, Nymphaeites choffati (= Klitzschophyllites choffati). The fossil wood log, Lecythioxylon brasiliense Milanez, comes from outcropping at the margin of Parnaíba river, in Piauí State, considered correlate with those of the Codó Formation (Milanez 1935).…”

Section: Introductionmentioning

confidence: 99%

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New plant fossils from the Lower Cretaceous of the Parnaíba Basin, Northeastern Brazil: Southern Laurasia links

et al. 2018

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Section: Discussionsupporting

confidence: 84%

Section: Remarksmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New plant fossils from the Lower Cretaceous of the Parnaíba Basin, Northeastern Brazil: Southern Laurasia links

et al. 2018

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“…Upchurch et al (1994) also pointed out that fossil early Tertiary Nelumbo leaves that are very similar to living species should be called Nelumbago (also McIver and Basinger, 1993). Nymphaeites was originally a form genus for rhizomes that were similar to those found in the Nymphaeaceae, but was expanded (probably incorrectly, see Krassilov et al, 2005) to including nymphaeaceous leaves when such leaves were found in association (see Heer 1870; Hollick, 1930; Duarte and Silva Santos, 1993). Usually, these are leaves with a cordate base and from the Tertiary (e.g., N. nevadensis [Knowlton] Brown), but some specimens are centrally peltate (Álvarez‐Ramis, et al, 2004), and probably belong in Nelumbites .…”

Section: Resultsmentioning

confidence: 99%

Scutifolium jordanicumgen. et sp. nov. (Cabombaceae), an aquatic fossil plant from the Lower Cretaceous of Jordan, and the relationships of related leaf fossils to living genera

Taylor

Brenner

Basha

2008

American J of Botany

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A new species of aquatic plant, Scutifolium jordanicum gen. et sp. nov., Taylor, Brenner & Basha, is described from the Albian of Jordan. The leaves are microphyllous with a symmetrical, elliptical to suborbiculate shape, convex to rounded apex and base, and actinodromous to palinactinodromous primary venation. The peltate, centrally attached petioles are narrow, elongate, and alternately arranged on similarly sized stems. The leaves appear to be thick and have aerenchyma. Comparisons to plants with centrally peltate leaves and palmate venation and to aquatic plants with floating leaves suggest that S. jordanicum belongs to the Cabombaceae lineage within the Nymphaeales. Cladistic analysis including the fossil and living members of the Nymphaeales shows that the S. jordanicum is basal to the living members of the family and has unique characters not found in any living genera. This is the oldest evidence of the Cabombaceae from the Old World. Inclusion of two other Early Cretaceous peltate leaf fossils in the phylogenetic analysis indicates their affinities to Cabombaceae and that some of the shared derived characters for the living members are progressively acquired in the fossils. These data show the Cabombaceae were widespread in Gondwana and Laurasia by the mid-Cretaceous.

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“…from the Lower Cretaceous of Maranhão, Alagoas and Minas Gerais in Brazil (Jordan (1910), Silva Santos (1947, 1955, Duarte and Silva Santos (1993)) and near Bata, Equatorial Guinea (Gayet 1989) (Text- fig. 3).…”

Section: 1) Dastilbe Has Been Reported D a V I S A N D M A R T I Lmentioning

confidence: 99%

The gonorynchiform fish Dastilbe from the lower Cretaceous of Brazil

Davis

Martill

1999

Palaeontology

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ABSTRACT. We examine the preservation, autecology and morphological variation for several characters of the Cretaceous gonorynchiform fish Dastilbe from the Lower Cretaceous of Brazil and Africa. More than 83 specimens were examined. We test species validity using characters of the caudal endoskeleton and meristic counts of finrays vs length. Evidence provided by fossilized soft tissues and slabs containing large individuals 'freeze framed' in the process of swallowing smaller prey meals, show that Dastilbe was predatory, at least as adults, as well as cannibalistic. Dastilbe was probably an anadromous fish tolerant of hypersalinity and in Araripe was subjected to frequent mass mortality events. Observations of the otic region indicate that the lagenar statolith is consistently larger than the saccular statolith, hence revealing a primitive actinopterygian condition. For the first time, a lagenar statolith from Dastilbe has been cleaved to expose putative annuli-like ridges. Our results clearly show that there is a wide degree of morphological plasticity of the endoskeleton coupled with wide meristic variation, and as such, overall length, fin-ray count and even absence or presence of caudal diastema are not suitable criteria for species recognition in Dastilbe. New specimens from the Crato Formation (Aptian) and statistical tests suggest rejection of all species of Dastilbe erected subsequent to Jordan (1910). All Brazilian specimens of Lower Cretaceous Dastilbe can be assigned to the single species D. crandalli Jordan. The African D. batai Gayet is also placed within D. crandalli.

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Plant and fish megafossils of the Codó Formation, Parnaı́ba Basin, NE Brazil

Cited by 15 publications

References 0 publications

New plant fossils from the Lower Cretaceous of the Parnaíba Basin, Northeastern Brazil: Southern Laurasia links

New plant fossils from the Lower Cretaceous of the Parnaíba Basin, Northeastern Brazil: Southern Laurasia links

Scutifolium jordanicumgen. et sp. nov. (Cabombaceae), an aquatic fossil plant from the Lower Cretaceous of Jordan, and the relationships of related leaf fossils to living genera

The gonorynchiform fish Dastilbe from the lower Cretaceous of Brazil

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