PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Myxococcoides grandis

Taxonomy

Myxococcoides grandis was named by Horodyski and Donaldson (1980). It is considered to be a form taxon. Its type specimen is GSC-57988; coordinates 23.2x/4.0y and is a 3D body fossil. Its type locality is Locality A42, Dismal Lakes, which is in an Ectasian peritidal dolomite in the Kendall River Formation of Canada.

Sister species lacking formal opinion data

M. ovata

Synonyms

Phanerosphaerops polymorphus was named by Yakschin (1991). It is considered to be a form taxon.

It was synonymized subjectively with Myxococcoides grandis by Sergeev et al. (1995).
Phanerosphaerops granulatus was named by Yakschin (1991). It is considered to be a form taxon.

It was synonymized subjectively with Myxococcoides grandis by Sergeev et al. (1995).
Caryosphaeroides amplus was named by Yakschin (1991). It is considered to be a form taxon.

It was synonymized subjectively with Myxococcoides grandis by Sergeev et al. (1995).
Bisphaera plana was named by Yakschin (1991). It is considered to be a form taxon.

It was synonymized subjectively with Myxococcoides grandis by Sergeev et al. (1995).
Tuberiphycus uniparietinus was named by Yakschin (1991). It is considered to be a form taxon.

It was synonymized subjectively with Myxococcoides grandis by Sergeev et al. (1995).
Tuberiphycus biparietinus was named by Yakschin (1991). It is considered to be a form taxon.

It was synonymized subjectively with Myxococcoides grandis by Sergeev et al. (1995).
Quaternatiphycus segmentatus was named by Yakschin (1991). It is considered to be a form taxon.

It was synonymized subjectively with Myxococcoides grandis by Sergeev et al. (1995).
Quaternatiphycus sectorialis was named by Yakschin (1991). It is considered to be a form taxon.

It was synonymized subjectively with Myxococcoides grandis by Sergeev et al. (1995).
Eogloeocapsa composita was named by Yakschin (1991). It is considered to be a form taxon.

It was synonymized subjectively with Myxococcoides grandis by Sergeev et al. (1995).
Tetraphycus amplus was named by Golovenok and Belova (1984). It is considered to be a form taxon.

It was synonymized subjectively with Myxococcoides grandis by Sergeev et al. (1995).
Glomophycus tortilis was named by Yakschin (1991). It is considered to be a form taxon.

It was synonymized subjectively with Myxococcoides grandis by Sergeev et al. (1995).

Synonymy list

Year	Name and author
1980	Myxococcoides grandis Horodyski and Donaldson p. 142 figs. 7A-N, 8
1983	Myxococcoides grandis Wang et al. p. 152 figs. 3.10-3.13
1984	Tetraphycus amplus Golovenok and Belova
1985	Myxococcoides grandis Zhang p. 289 figs. 5E-G, I?, J, K
1991	Myxococcoides grandis Hofmann and Jackson p. 374
1991	Bisphaera plana Yakschin
1991	Caryosphaeroides amplus Yakschin
1991	Eogloeocapsa composita Yakschin
1991	Glomophycus tortilis Yakschin
1991	Phanerosphaerops granulatus Yakschin
1991	Phanerosphaerops polymorphus Yakschin
1991	Quaternatiphycus sectorialis Yakschin
1991	Quaternatiphycus segmentatus Yakschin
1991	Tuberiphycus biparietinus Yakschin
1991	Tuberiphycus uniparietinus Yakschin
1995	Myxococcoides grandis Sergeev et al. p. 33 figs. 7.1-7.9, 7.13, 9.1-9.5

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Rank	Name	Author
—	Life
—	Prokaryota
—	Bacteria

Rank	Name	Author
phylum	Cyanobacteria	Stanier 1973
genus	Myxococcoides
species	grandis

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Myxococcoides grandis Horodyski and Donaldson 1980

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Invalid names: Bisphaera plana Yakschin 1991 [synonym], Caryosphaeroides amplus Yakschin 1991 [synonym], Eogloeocapsa composita Yakschin 1991 [synonym], Glomophycus tortilis Yakschin 1991 [synonym], Phanerosphaerops granulatus Yakschin 1991 [synonym], Phanerosphaerops polymorphus Yakschin 1991 [synonym], Quaternatiphycus sectorialis Yakschin 1991 [synonym], Quaternatiphycus segmentatus Yakschin 1991 [synonym], Tetraphycus amplus Golovenok and Belova 1984 [synonym], Tuberiphycus biparietinus Yakschin 1991 [synonym], Tuberiphycus uniparietinus Yakschin 1991 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Environment:

hypersaline, marine, brackish, freshwaterp

Locomotion:

stationaryp

Diet:

"photoautotroph"p

Created:

2007-12-04 09:01:31

Modified:

2007-12-04 11:01:31

Source: p = phylum

Reference: Vachard and Aretz 2004

Age range: base of the Calymmian to the top of the Nemakit-Daldynian or 1600.00000 to 525.50000 Ma

Collections (17 total)

Time interval	Ma	Country or state	Original ID and collection number
Calymmian	1600.0 - 1400.0	Russian Federation	Myxococcoides grandis (227480 227483 227487 227502 227508 227515)
Calymmian	1600.0 - 1400.0	China (Beijing)	Myxococcoides grandis (227625)
Ectasian	1400.0 - 1200.0	Russian Federation	Myxococcoides grandis (227495 227496)
Ectasian	1400.0 - 1200.0	Canada (Nunavut)	Myxococcoides grandis (type locality: 227526)
Stenian	1200.0 - 1000.0	Canada (Nunavut)	Myxococcoides grandis (227542 227543 227544 227545 227548 227551)
Nemakit-Daldynian	538.8 - 525.5	China (Yunnan)	Myxococcoides grandis (227761)