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Living Taxa and Their Importance in Understanding the Extinct Diversity: A Look at Polypterid Pinnules

Diversity, ISSN: 1424-2818, Vol: 15, Issue: 4
2023
  • 1
    Citations
  • 0
    Usage
  • 3
    Captures
  • 2
    Mentions
  • 124
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    1
  • Captures
    3
  • Mentions
    2
    • Blog Mentions
      1
      • Blog
        1
    • News Mentions
      1
      • News
        1
  • Social Media
    124
    • Shares, Likes & Comments
      124
      • Facebook
        124

Most Recent Blog

Diversity, Vol. 15, Pages 517: Living Taxa and Their Importance in Understanding the Extinct Diversity: A Look at Polypterid Pinnules

Diversity, Vol. 15, Pages 517: Living Taxa and Their Importance in Understanding the Extinct Diversity: A Look at Polypterid Pinnules Diversity doi: 10.3390/d15040517 Authors: Marcos

Most Recent News

Findings from State University Rio de Janeiro in Biology Reported (Living Taxa and Their Importance in Understanding the Extinct Diversity: A Look at Polypterid Pinnules)

2023 APR 14 (NewsRx) -- By a News Reporter-Staff News Editor at NewsRx Life Science Daily -- Current study results on biology have been published.

Article Description

Pinnules are the peculiar, impaired spines that carry each of the numerous finlets that constitute the dorsal fins of polypterid fishes (Cladistia and Polypteriformes). Previous studies, including a recent detailed paper on the comparative analysis of the morphology of pinnules in most of the extant species (genera Polypterus and Erpetoichthys), suggest that they display unique characteristics that allow for species identification. Since most of the polypterid fossil records are composed of scales that lack specific characteristics and isolated pinnules, this work aims to test their taxonomic relevance before comparing the fossil pinnule morphologies across the fossil records in order to evaluate polypterid paleodiversity. Therefore, we describe the intra-individual and intra-specific morphological variations of the pinnules in the extant species Polypterus bichir. Furthermore, we compared it with the various morphologies described in the Polypteridae family. We report intra-individual variability related to the anteroposterior axis of the dorsal fin. We also report morphological differences in the pinnules among specimens that overlap those anticipated among different species, concluding that the pinnule morphology cannot support taxonomic purposes in polypterid fishes in their current state.

Bibliographic Details

Marcos Vinícius Coelho; Camila Cupello; Paulo M. Brito; Olga Otero

MDPI AG

Environmental Science; Agricultural and Biological Sciences

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