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Muratodinium
From Williams et al., 2017:
[Muratodinium, Drugg, 1970b, p. 818
Type species: originally as Kenleyia fimbriata, Cookson and Eisenack, 1967b (pl.40, fig.3)] ; Muratodinium fimbriatum, Drugg, 1970
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Original description: [Drugg, 1970]:
Description:
Fossil cysts more or less ovoidal in shape and with apical and antapical projections. Tabulation 4`, 6", 5```, 1````. The archeopyle is formed by the removal of precingular plate 3". The plate boundaries are formed by high lace-like walls.
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Modified description:
Stover and Evitt, 1978, p. 175:
Synopsis:
Cysts proximochorate, body subspherical with apical and antapical projections; paratabulation gonyaulacacean, reduced, and indicated by relatively high fibrous parasutural septa; archeopyle precingular, Type P.
Description:
Shape: Body subspherical with apical and antapical projections.
Wall relationships: Autophragm only; no apparent distinction between cyst wall and projecting structures.
Wall features: Parasutural septa and autophragm fibrous; septa irregularly perforate, relatively high, and of essentially uniform height.
Paratabulation: Indicated by parasutural features; gonyaulacacean, reduced, formula: 4`, 6``, Xc, 5```, 1````.
Archeopyle: Precingular, Type P (3`` only); operculum free.
Paracingulum: Indicated by a single equatorial transverse septum.
Parasulcus: Represented by an elongate, undivided midventral area.
Size: Intermediate to large.
Affinities:
Muratodinium differs from Kenleyia in having parasutural septa rather than more or less isolated fibrous projections. It differs from Pterodinium and Heslertonia in having fibrous septa, and additionally from the latter in having reduced paratabulation.
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Notes:
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
d\tx-1262\tx-720\tx9360\tx10080\tx10800\tx11520
Muratodinium Drugg, 1970b. According to Stover and Evitt (1978), Muratodinium is a proximochorate cyst with subspherical body with apical and antapical projections. Paratabulation gonyaulacacean, reduced, and indicated by relatively high fibrous parasutural septa; archeopyle precingular type P.
[Muratodinium, Drugg, 1970b, p. 818
Type species: originally as Kenleyia fimbriata, Cookson and Eisenack, 1967b (pl.40, fig.3)] ; Muratodinium fimbriatum, Drugg, 1970
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Drugg, 1970]:
Description:
Fossil cysts more or less ovoidal in shape and with apical and antapical projections. Tabulation 4`, 6", 5```, 1````. The archeopyle is formed by the removal of precingular plate 3". The plate boundaries are formed by high lace-like walls.
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Modified description:
Stover and Evitt, 1978, p. 175:
Synopsis:
Cysts proximochorate, body subspherical with apical and antapical projections; paratabulation gonyaulacacean, reduced, and indicated by relatively high fibrous parasutural septa; archeopyle precingular, Type P.
Description:
Shape: Body subspherical with apical and antapical projections.
Wall relationships: Autophragm only; no apparent distinction between cyst wall and projecting structures.
Wall features: Parasutural septa and autophragm fibrous; septa irregularly perforate, relatively high, and of essentially uniform height.
Paratabulation: Indicated by parasutural features; gonyaulacacean, reduced, formula: 4`, 6``, Xc, 5```, 1````.
Archeopyle: Precingular, Type P (3`` only); operculum free.
Paracingulum: Indicated by a single equatorial transverse septum.
Parasulcus: Represented by an elongate, undivided midventral area.
Size: Intermediate to large.
Affinities:
Muratodinium differs from Kenleyia in having parasutural septa rather than more or less isolated fibrous projections. It differs from Pterodinium and Heslertonia in having fibrous septa, and additionally from the latter in having reduced paratabulation.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Notes:
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
d\tx-1262\tx-720\tx9360\tx10080\tx10800\tx11520
Muratodinium Drugg, 1970b. According to Stover and Evitt (1978), Muratodinium is a proximochorate cyst with subspherical body with apical and antapical projections. Paratabulation gonyaulacacean, reduced, and indicated by relatively high fibrous parasutural septa; archeopyle precingular type P.