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Development and evolution of the lateral plate mesoderm: Comparative analysis of amphioxus and lamprey with implications for the acquisition of paired fins
Pelvic claspers confirm chondrichthyan-like internal fertilization in arthrodires
The 2 references without a DOI — listed, not checked
no DOI — not checkedA. Heintz in The Bashford Dean Memorial Volume: Archaic Fishes E. W. Gudger Ed. (American Museum of Natural History New York 1930) pp. 115–224.
no DOI — not checkedF. H. Edgeworth The Cranial Muscles of Vertebrates (Cambridge Univ. Press Cambridge 1935).
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