Endostyle-like Features of the Dorsal Epibranchial Ridge of an Enteropneust and the Hypothesis of Dorsal-Ventral Axis Inversion in Chordates

Abstract

Edward E. Ruppert, Christopher B. Cameron, Jennifer E. Frick, Endostyle-like Features of the Dorsal Epibranchial Ridge of an Enteropneust and the Hypothesis of Dorsal-Ventral Axis Inversion in Chordates, Invertebrate Biology, Vol. 118, No. 2 (Spring, 1999), pp. 202-212