Diaphragmus

Diaphragmus is an extinct genus of brachiopod belonging to the order Productida and family Linoproductidae.^[1] Specimens have been found in Carboniferous beds in North America.^[2]

Diaphragmus Temporal range: Carboniferous-Permian ~336–254 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Brachiopoda
Class:	†Strophomenata
Order:	†Productida
Family:	†Productidae
Tribe:	†Productini
Genus:	†Diaphragmus Girty 1910
Species
See text

Classification

Leighton & Maples (2002) conducted multiple phylogenetic analyses which are strongly in agreement that the four subfamilies Buxtoniinae, Echinoconchinae, Pustulinae and Juresaniinae form the family Echinoconchidae. The results of their phylogenetic analyses are displayed in the cladogram below:^[3]

	Productella
	Praewaagenoconcha Sentosia Leioproductus Spinocarinifera Diaphragmus Antiquatonia Flexaria Buxtonia Pustula Echinoconchus Echinaria Pulchratia Parajuresania

Species

• D. elegans Norwood and Pratten^[4][5]
• D. nivosus Gordon 1975^[2]

References

• Paleontology portal

1. Williams, A.; Carlson, S. J.; Brunton, C. H. C.; Holmer, L. E.; Popov, L. E.; Mergl, M.; Laurie, J. R.; Bassett, M. G.; Cocks, L. R. M.; Rong, J.-Y.; Lazarev, S. S.; Grant, R. E.; Racheboeuf, P. R.; Jin, Y.-G.; Wardlaw, B. R.; Harper, D. A. T.; Wright, A. D. (2000). "Part H Brachiopoda (revised) Volumes 2 & 3, Linguliformea, Craniiformea, Rhynchonelliformea (part)". Treatise on Invertebrate Paleontology. pp. 1–919.
2. Butts, Susan H. (January 2007). "Silicified Carboniferous (Chesterian) Brachiopoda of the Arco Hills Formation, Idaho". Journal of Paleontology. 81 (1): 48–63. doi:10.1666/0022-3360(2007)81[48:SCCBOT]2.0.CO;2.
3. Leighton, Lindsey R.; Maples, Christopher G. (July 2002). "Evaluating internal versus external characters: Phylogenetic analyses of the Echinoconchidae, Buxtoniinae, and Juresaniinae (Phylum Brachiopoda)". Journal of Paleontology. 76 (4): 659. doi:10.1666/0022-3360(2002)076<0659:EIVECP>2.0.CO;2. ISSN 0022-3360.
4. Girty, George H. (1911). "The fauna of the Moorefield Shale of Arkansas". U.S. Geological Survey Bulletin. 439. Retrieved 13 January 2022.
5. Laudon, Lowell R.; Bowsher, Arthur L. (1949). "Mississippian formations of southwestern New Mexico". Geological Society of America Bulletin. 60 (1): 1. Bibcode:1949GSAB...60....1L. doi:10.1130/0016-7606(1949)60[1:MFOSNM]2.0.CO;2.