. Bulletins of American paleontology. 22 Bulletin 185 must be put in different families. Bather criticized Jaekel for so much sphtting in his classification of the carpoids, but subsequent work has largely supported Jaekel as new discoveries have demonstrated the need for even further fractionation. Family KUTKOCLYPEIDAE Gill and Caster, new family Diagnosis.—Sobita in ivhich both thecal faces consist of numerous polygonal plates, the thecal outline is circular, the thecal surfaces close and subparallel, and the thecal plates connnonly spinose. Proximal stele con- spicuously flattened. Thecal


. Bulletins of American paleontology. 22 Bulletin 185 must be put in different families. Bather criticized Jaekel for so much sphtting in his classification of the carpoids, but subsequent work has largely supported Jaekel as new discoveries have demonstrated the need for even further fractionation. Family KUTKOCLYPEIDAE Gill and Caster, new family Diagnosis.—Sobita in ivhich both thecal faces consist of numerous polygonal plates, the thecal outline is circular, the thecal surfaces close and subparallel, and the thecal plates connnonly spinose. Proximal stele con- spicuously flattened. Thecal surface Marginal spine =^^;iit>.-p=S^. Thecal margin Polygonal plates with spines Marginal plates with spines f; Anal surface Ecsol plate with spine Proximo I Imbricating plate of stele Median suture Lateral suture. BRACHIOLE >- THECA Nomenclature for thecal surfaces in Carpoidea SOLUTA Antianal Anal MIT RATA Carapace :: Distal ^STELE Distal stele Text-fig. 6.—The morphologic terminology of the Rutroclypeidae, a new family of Carpoidea Soluta. Based on Rulrodypeus junori Withers from the Lower Devonian of the State of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Paleontological Research Institution (Ithaca, N. Y. ); Columbia University. Ithaca, N. Y. , Paleontological Research Institution [etc. ]


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