Liomesaspis

Liomesaspis; Temporal range: Late Carboniferous–Early Permian, 303–273.01 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Fossils of Liomesaspis laevis (A, B) and Liomesaspis birtwelli (C)
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Order:	Xiphosura
Family:	† Belinuridae
Genus:	† Liomesaspis ; Raymond, 1944
Synonyms
	PringliaRaymond, 1944; PalatinaspisMalz & Poschmann, 1993;

Last updated August 14, 2025

Liomesaspis is an extinct genus of xiphosuran, related to the modern horseshoe crab. It lived from the late Carboniferous to the Early Permian.

Sources

Evolution: What the Fossils Say and Why It Matters by Donald R. Prothero and Carl Buell
Bringing Fossils To Life: An Introduction To Paleobiology by Donald R. Prothero

References

↑ Anderson, Lyall I.; Selden, Paul A. (March 1997). "Opisthosomal fusion and phylogeny of Palaeozoic Xiphosura" . Lethaia. 30 (1): 19–31. doi:10.1111/j.1502-3931.1997.tb00440.x. ISSN 0024-1164.

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[1] Anderson, Lyall I.; Selden, Paul A. (March 1997). "Opisthosomal fusion and phylogeny of Palaeozoic Xiphosura" . Lethaia. 30 (1): 19–31. doi:10.1111/j.1502-3931.1997.tb00440.x. ISSN 0024-1164.

[1]

Liomesaspis Temporal range: Late Carboniferous–Early Permian, 303–273.01 Ma PreꞒ Ꞓ O S D C P T J K Pg N

Fossils of Liomesaspis laevis (A, B) and Liomesaspis birtwelli (C)
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Order:	Xiphosura
Family:	† Belinuridae
Genus:	† Liomesaspis Raymond, 1944
Synonyms
PringliaRaymond, 1944^[1] PalatinaspisMalz & Poschmann, 1993