Ceratobairdia

Ceratobairdia is an extinct genus of ostracod (seed shrimp) belonging to the order Podocopida and family Bairdiidae.[1] Specimens have been found in Permian[2] to Jurassic[3] beds in North America,[2] China,[4] and Europe.[3]

Ceratobairdia
Temporal range:
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Ostracoda
Order: Podocopida
Family: Bairdiidae
Genus: †Ceratobairdia
Sohn, 1954

The genus is heavily ornamented,[5] 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.)[6] The genus is also notable as a Lazarus taxon, disappearing in the Permian-Triassic extinction event and reappearing in the Carnian,[5] an interval of at least 15 million years.

Species
  • C. ambigua Ishizaki 1964[4]
  • C. dorsospinosa Sohn 1954[2]
  • C. sinensis Wang 1978[1]
  • C. triassica Bolz 1971[3]
  • C. venterocostata Wang 1978[7]
  • C. xiaobaensis Xie 1989[8]

References
  1. Becker, G.; Wang, S.Q. (1992). "Kirkbyacea and Bairdiacea (Ostracoda) from the Palaeozoic of China". Palaeontographica Abteilung A. 224 (1–54).
  2. Sohn, I.G. (1954). "Ostracoda from the Permian of the Glass Mountains, Texas". U.S. Geological Survey Professional Paper. Professional Paper. 264-A. doi:10.3133/pp264A.
  3. Harloff, J.; Jäger, R. (1994). "Ostracoden aus dem Lias der Kalkalpen Bayerns und Nordtirols". Stuttgarter Beiträge zur Naturkunde, Serie B (Geologie und Paläontologie). 205: 1–63.
  4. Zazzali, Sindbad; Crasquin, Sylvie; Deconinck, Jean-François; Feng, Qinglai (September 2015). "Biodiversity across the Guadalupian-Lopingian Boundary: first results on the ostracod (Crustacea) fauna, Chaotian section (Sichuan Province, South China)" (PDF). Geodiversitas. 37 (3): 283–313. doi:10.5252/g2015n3a1. S2CID 128473981.
  5. Forel, M.-B.; Crasquin, S. (October 2020). "Bounded by crises: An overview of the evolution of marine ostracods during the Triassic" (PDF). Marine Micropaleontology. 174: 101925. doi:10.1016/j.marmicro.2020.101925. S2CID 224931341.
  6. Forel, Marie-Béatrice; Ozsvárt, Péter; Moix, Patrice (2018). "Carnian (Late Triassic) ostracods from the Sorgun Ophiolitic Mélange (Southern Turkey): Taxonomy, palaeoenvironment, and evidence of predation". Palaeontologia Electronica. 21 (2). doi:10.26879/852.
  7. Crasquin, Sylvie; Forel, Marie-Béatrice; Qinglai, Feng; Aihua, Yuan; Baudin, François; Collin, Pierre-Yves (4 August 2010). "Ostracods (Crustacea) through the Permian-Triassic boundary in South China: the Meishan stratotype (Zhejiang Province)". Journal of Systematic Palaeontology. 8 (3): 331–370. doi:10.1080/14772011003784992. S2CID 85986762.
  8. Xie, L. (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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