Wetheredella

Wetheredella is a genus of calcimicrobes known from the Silurian of England. It is suggested to be either a foraminifera,[5][6] cyanobacterium or green alga.[7] The genus is named in honor of the geologist Edward Wethered.[8]

Wetheredella
Temporal range: 443.7–383.7 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Scientific classification
Clade: SAR
Phylum: Foraminifera (?)
Class: incertae sedis (?)
Genus: †Wetheredella
Wood, 1948.[1] taxon inquirendum (possibly not in foraminifera[2]
Type species
†Wetheredella silurica
Wood, 1948
Species
  • †Wetheredella nodosum Talent 1963[3]
  • †Wetheredella silurica Wood, 1948
Synonyms[4]

Allonema Ulrich & Bassler, 1904

Wetheredella is characterized by calcified tubes encrusting a foreign body, with convex outer surfaces and inner surfaces coiled around the encrusted grain. Recently it has been shown that structures matching the description of Wetheredella can be produced by sectioning of Allomena, meaning that Wetheredella is possibly a junior synonym of Allomena.[9]

References
  1. Wood, Alan (1948). ""Sphaerocodium," a misinterpreted Fossil from the Wenlock limestone". Proceedings of the Geologists' Association. 59 (1): 9–22. doi:10.1016/S0016-7878(48)80027-1.
  2. Loeblich Jr., Alfred R.; Tappan, Helen (1988). "Generic Tana Erroneously Regarded as Foraminifers". Foraminiferal Genera and Their Classification. 1. New York: Van Nostrand Reinhold Co. p. 730. ISBN 9781489957603. OCLC 680469074. Retrieved 7 January 2019. Wetheredella Wood, 1948 ('3389A). p. 20; type species: Wetheredella silurica Wood, 1948. Alga.
  3. J. A. Talent. 1963. The Devonian of the Mitchell and Wentworth Rivers. Geological Survey of Victoria Memoir 24:1-118
  4. "Allonema" (html). Fossilworks. Retrieved 7 January 2019. Synonym: Wetheredella Wood 1948 (taxon 117727)
  5. Riding, R.; Watts, N. (1981). "Silurian algal reef crest in Gotland". Naturwissenschaften. 68 (2): 91–92. Bibcode:1981NW.....68...91R. doi:10.1007/BF01047229. S2CID 8834679.
  6. Nose, Martin; Schmid, Dieter U.; Leinfelder, Reinhold R. (2006). "Significance of microbialites, calcimicrobes, and calcareous algae in reefal framework formation from the Silurian of Gotland, Sweden". Sedimentary Geology. 192 (3–4): 243–265. Bibcode:2006SedG..192..243N. doi:10.1016/j.sedgeo.2006.04.009.
  7. Liu, Lijing; Wu, Yasheng; Yang, Haijun; Riding, Robert (2016). "Ordovician calcified cyanobacteria and associated microfossils from the Tarim Basin, Northwest China: systematics and significance" (PDF). Journal of Systematic Palaeontology. 14 (3): 183–210. doi:10.1080/14772019.2015.1030128. S2CID 129684955.
  8. Riding, Robert; Fan, Jiasong (2001). "Ordovician Calcified Algae and Cyanobacteria, Northern Tarim Basin Subsurface, China". Palaeontology. 44 (4): 783–810. doi:10.1111/1475-4983.00201.
  9. Jarochowska, E; Munnecke, A. (2014). "The Paleozoic problematica Wetheredella and Allonema are two aspects of the same organism". Facies. 60 (2): 651–662. doi:10.1007/s10347-014-0399-z. S2CID 129772080.
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