''Jaekelocarpus'' is a genus of
mitrate
Mitrates are an extinct group of stem group echinoderms, which may be closely related to the hemichordates. Along with the cornutes, they form one half of the Stylophora.
Morphology
The organisms were a few millimetres long. Like the echinod ...
stylophora
The stylophorans are an extinct, possibly polyphyletic group allied to the Paleozoic Era echinoderms, comprising the prehistoric cornutes and mitrates. It is synonymous with the subphylum Calcichordata. Their unusual appearances have led to a va ...
n known from the
Morrowan
The Bashkirian is in the International Commission on Stratigraphy geologic timescale the lowest stage or oldest age of the Pennsylvanian. The Bashkirian age lasted from to Ma, is preceded by the Serpukhovian and is followed by the Moscovian.
...
age of the
Golf Course Formation, southern
Oklahoma
Oklahoma ( ; Choctaw language, Choctaw: , ) is a landlocked U.S. state, state in the South Central United States, South Central region of the United States. It borders Texas to the south and west, Kansas to the north, Missouri to the northea ...
, US. It possessed two
billaterally symmetrical complexes of four internal bars. The morphological similarity of these structures to the
gill bars of
cephalochordates and
enteropneusts is considered a likely indicator of their
homology.
References
Carboniferous echinoderms
Homalozoa
Prehistoric echinoderm genera
{{Paleo-echinoderm-stub