Orthotheca

Orthotheca; Temporal range: Early Cambrian–Early Devonian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Clade:	Lophophorata
Clade:	Brachiozoa
Class:	† Hyolitha
Order:	† Orthothecida
Family:	† Orthothecidae ; Sysoev, 1958
Genus:	† Orthotheca ; Novák, 1886
Species
	O. shriveri Malinky, 2009 ; Others, please add...

Last updated April 29, 2021

Orthotheca is a genus of sessile bottom-dwelling hyolith.^[1]

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References

1 2 Malinky, J. M. (2009). "First Occurrence of Orthotheca Novák, 1886 (Hyolitha, Early Devonian) in North America". Journal of Paleontology. 83: 588–596. doi:10.1666/08-164R.1.

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[Malinky2009-1] 1 2 Malinky, J. M. (2009). "First Occurrence of Orthotheca Novák, 1886 (Hyolitha, Early Devonian) in North America". Journal of Paleontology. 83: 588–596. doi:10.1666/08-164R.1.

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