Jaekelocarpus
| Jaekelocarpus Temporal range: Pennsylvanian (Morrowan),
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | †Stylophora |
| Order: | †Mitrata |
| Family: | †Jaekelocarpidae |
| Genus: | †Jaekelocarpus Kolata et al. 1991 |
| Species: | †J. oklahomensis
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| Binomial name | |
| †Jaekelocarpus oklahomensis Kolata et al. 1991
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Jaekelocarpus is a genus of mitrate stylophoran known from the Morrowan age of the Golf Course Formation (southern Oklahoma, USA).[1] 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.[2][3]
References[edit]
- ^ Kolata, Dennis R.; Frest, Terrence J.; Mapes, Royal H. (September 1991). "The youngest carpoid: occurrence, affinities, and life mode of a Pennsylvanian (Morrowan) mitrate from Oklahoma". Journal of Paleontology. 65 (5): 844–855. Bibcode:1991JPal...65..844K. doi:10.1017/S0022336000037811. ISSN 0022-3360.
- ^ Dominguez, Patrício; Jacobson, Antone G.; Jefferies, Richard P. S. (2002-06-20). "Paired gill slits in a fossil with a calcite skeleton". Nature. 417 (6891): 841–844. Bibcode:2002Natur.417..841D. doi:10.1038/nature00805. ISSN 1476-4687. PMID 12075349.
- ^ Álvarez-Armada, Nidia; Cameron, Christopher B.; Bauer, Jennifer E.; Rahman, Imran A. (2022-05-11). "Heterochrony and parallel evolution of echinoderm, hemichordate and cephalochordate internal bars". Proceedings of the Royal Society B: Biological Sciences. 289 (1974). doi:10.1098/rspb.2022.0258. ISSN 0962-8452. PMC 9091856. PMID 35538784.
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