Krutak, P. R. (1982). Modern Ostracodes of the Veracruz-Anton Lizardo Reefs, Mexico. Micropaleontology. 28(3): 258-288.

209247

10.2307/1485182 [view]

Krutak, P. R.

1982

28(3): 258-288

Publication

Available for editors   [request]

Veracruz-Anton Lizardo reefs comprise the southernmost complex of patch reefs in the southwestern Gulf of Mexico and provide a link between the Yucatan carbonate platform on the east and the two isolated, more northerly bioherms at Tampico, Mexico (Isla de Lobos) and off Galveston, Texas (Flower Garden Banks). Maps of environmental data (depth, salinity, pH, temperature, Eh and dissolved oxygen) from 33 sampling stations on these reefs provide data for the study of the controls of distribution of the common ostracode species. Seventeen species occur with total (live + dead) relative abundances greater than or equal to 1%. Cluster analysis (R-mode) of these 17 reveals two major clusters at the "15" phenon level. One cluster contains the three dominant species of the reefs (L. tricornatum, L. cf. L. postdorsoalata, Morkhovenia inconspicua) as well as Quadracythere producta. The other cluster contains "Haplocytheridea" cf. "H." bradyi (11th-ranked) and the other less dominant species. Within the first cluster, L. tricornatum biofacies dominates the Veracruz reef group and L. cf. L. postdorsoalata biofacies is most prevalent on the Anton Lizardo complex. Fifteen additional rare (less than 1% of total population) but easily recognized species also occur, and these are illustrated and discussed.

Gulf of Mexico

Ostracoda

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