Project 4074: M. A. Gandolfo, K. C. Nixon, W. L. Crepet, G. E. Ratcliffe, L. H. Hortorium. 2000. Sorophores ofLygodium Sw. (Schizaeaceae) from the Late Cretaceous of New Jersey. Plant Systematics and Evolution. 221 (1-2):113-123.
Specimen: Lygodium (unvouchered)
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Abstract

We report here on a series of specimens of charcoalified sorophores with characteristics of the extant fern genusLygodium (Schizaeaceae) collected from sediments of the Raritan Formation (Late Cretaceous). Each elongate lobed fertile pinnule (sorophore) is flattened and bears alternately arranged sporangia on one surface. Each sporangium is covered by an indusium continuous with the margin of the lamina. Sporangia are oblong in shape, short stalked, and have an apical annulus formed by a single ring of radiating cells that dehisces longitudinally. The ‘sporangial cap’ or ‘distal face’ is formed by only one cell. All of these features are characteristic of the extant genusLygodium. Small numbers of trilete, psilate spores are found in the sporangia. Megafossils assignable toLygodium are known from the Upper Cretaceous of North America and Germany with worldwide distribution during the Tertiary. The newLygodium fossils are compared with others previously referred to the genus.


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Article DOI: 10.1007/BF01086385

Project DOI: 10.7934/P4074, http://dx.doi.org/10.7934/P4074
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 1 Document
  • 12 Taxa
  • 1 Specimen
  • 26 Characters
Total size of project's media files: 182.62k

Download Project SDD File
Total scored cells: 270
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 26
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 55
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:26/0
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MorphoBank Project 4074
  • Creation Date:
    04 September 2021
  • Publication Date:
    31 October 2021
  • Project views: 254

    This research
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    Authors' Institutions

    • Cornell University



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
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    MorphoBank Curator
    Project Administrator
    12112600270
    (268, 0, 2)
    000
    Maria Alejandra Gandolfo
    Full membership
    0000000
    (0, 0, 0)
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    Taxonomic Overview for Matrix 'M27638' (12 Taxa)

    taxon unscored
    cells
    scored
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    NPA
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    "-" cellscell images labels on
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    [1] Family Osmundaceae
    Last Modified in 10/31/21
    026260000none
    [2] Family Hymenophyllaceae
    Last Modified in 10/31/21
    123230200none
    [3] Stromatopteris
    Last Modified in 10/31/21
    026260000none
    [4] Gleichenia
    Last Modified in 10/31/21
    026260000none
    [5] Dicranopteris
    Last Modified in 10/31/21
    027260000none
    [6] Lygodium
    Last Modified in 10/31/21
    026260000none
    [7] Mohria
    Last Modified in 10/31/21
    125250000none
    [8] Anemia
    Last Modified in 10/31/21
    026260000none
    [9] Schizaea
    Last Modified in 10/31/21
    026260000none
    [10] † Lygodium bierhorstiana
    Last Modified in 10/31/21
    1115150000none
    [11] † Lygodium kaulfussi
    Last Modified in 10/31/21
    1511110000none
    [12] † Lygodium dinmorphyllum
    Last Modified in 10/31/21
    1511110000none


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    Project overview31
    Documents list19
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    Taxon list69
    Bibliography10




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