Ceratobairdia Explained

Ceratobairdia is an extinct genus of ostracod (seed shrimp) belonging to the order Podocopida and family Bairdiidae.[1] Specimens have been found in Permian to Jurassic beds in North America, China, and Europe.

The genus is heavily ornamented, and a distinctive characteristic is that its valves (shells) have a flat ventral surface and a ventrolateral alate ridge (a winglike ridge extending from the ventral surface to the side of the valve.)[2] The genus is also notable as a Lazarus taxon, disappearing in the Permian-Triassic extinction event and reappearing in the Carnian,[3] an interval of at least 15 million years.

Species

Notes and References

  1. G. . Becker . S.Q. . Wang . 1992 . Kirkbyacea and Bairdiacea (Ostracoda) from the Palaeozoic of China . Palaeontographica Abteilung A . 224 . 1–54.
  2. Forel . Marie-Béatrice . Ozsvárt . Péter . Moix . Patrice . Carnian (Late Triassic) ostracods from the Sorgun Ophiolitic Mélange (Southern Turkey): Taxonomy, palaeoenvironment, and evidence of predation . Palaeontologia Electronica . 2018 . 21 . 2 . 10.26879/852. free . 10831/67481 . free .
  3. Forel . M.-B. . Crasquin . S. . Bounded by crises: An overview of the evolution of marine ostracods during the Triassic . Marine Micropaleontology . October 2020 . 174 . 101925 . 10.1016/j.marmicro.2020.101925. 224931341 .
  4. Zazzali . Sindbad . Crasquin . Sylvie . Deconinck . Jean-François . Feng . Qinglai . Biodiversity across the Guadalupian-Lopingian Boundary: first results on the ostracod (Crustacea) fauna, Chaotian section (Sichuan Province, South China) . Geodiversitas . September 2015 . 37 . 3 . 283–313 . 10.5252/g2015n3a1. 128473981 .
  5. Sohn . I.G. . Ostracoda from the Permian of the Glass Mountains, Texas . U.S. Geological Survey Professional Paper . Professional Paper . 1954 . 264-A . 10.3133/pp264A. free .
  6. J. . Harloff . R. . Jäger . 1994 . Ostracoden aus dem Lias der Kalkalpen Bayerns und Nordtirols . Stuttgarter Beiträge zur Naturkunde, Serie B (Geologie und Paläontologie) . 205 . 1–63.
  7. Crasquin . Sylvie . Forel . Marie-Béatrice . Qinglai . Feng . Aihua . Yuan . Baudin . François . Collin . Pierre-Yves . Ostracods (Crustacea) through the Permian-Triassic boundary in South China: the Meishan stratotype (Zhejiang Province) . Journal of Systematic Palaeontology . 4 August 2010 . 8 . 3 . 331–370 . 10.1080/14772011003784992. 85986762 .
  8. L. . Xie . 1989 . Study on the Permian-Triassic Biostratigraphy and Event Stratigraphy of Northern Sichuan and Southern Shaanxi . Geological Memoirs . 29 . 435 . 211–220.

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