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Protoellipsodinium spinosum
Protoellipsodinium spinosum Davey and Verdier, 1971
Taxonomic junior synonyms: Protoellipsodinium longispinosum and Protoellipsodinium rarispinum, both according to Heilmann-Clausen and Thomsen (1995, p.306).
Holotype: Davey and Verdier, 1971, pl.5, fig.10
Locus typicus: Cotes Noires de Moeslains, France
Stratum typicum: Albian
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G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Protoellipsodinium spinosum Davey and Verdier, 1971. Diagnosis from Davey and Verdier (1971, p.29-30), Cyst elongate with sub-parallel sides. Hypotract larger than epitract. Spines numerous, only sometimes obviously aligned parallel to the cyst long axis; solid or hollow with a restricted lumen; broadly acuminate and usually less than ½ cyst width. Size: central body length 37-41 µm, width 22-27 µm, maximum process length 9-12 µm.
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Original description: Davey and Verdier 1971, p. 29-30
Diagnosis: Cyst elongate with sub-parallel sides. Hypotract larger than epitract. Spines numerous, only sometimes obviously aligned parallel to the cyst long axis; solid or hollow with a restricted lumen; broadly acuminate and usually less than 1/2 cyst width.
Dimensions: Range: Central body length: 37-41 µm; Central body width: 22-27 µm; Spine length: 9-12 µm.
Description: Very rarely 2 or 3 spines may be joined proximally by low crests. Distal bifurcation of a spine was observed once.
Affinities:
Davey and Verdier, 1971, p. 30
Protoellipsodinium spinosum may be distinguished from P. spinocristatum by the absence of well defined crests aligned parallel to the long axis of the cyst.
Taxonomic junior synonyms: Protoellipsodinium longispinosum and Protoellipsodinium rarispinum, both according to Heilmann-Clausen and Thomsen (1995, p.306).
Holotype: Davey and Verdier, 1971, pl.5, fig.10
Locus typicus: Cotes Noires de Moeslains, France
Stratum typicum: Albian
--------------------------------------------------
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Protoellipsodinium spinosum Davey and Verdier, 1971. Diagnosis from Davey and Verdier (1971, p.29-30), Cyst elongate with sub-parallel sides. Hypotract larger than epitract. Spines numerous, only sometimes obviously aligned parallel to the cyst long axis; solid or hollow with a restricted lumen; broadly acuminate and usually less than ½ cyst width. Size: central body length 37-41 µm, width 22-27 µm, maximum process length 9-12 µm.
--------------------------------------------------
Original description: Davey and Verdier 1971, p. 29-30
Diagnosis: Cyst elongate with sub-parallel sides. Hypotract larger than epitract. Spines numerous, only sometimes obviously aligned parallel to the cyst long axis; solid or hollow with a restricted lumen; broadly acuminate and usually less than 1/2 cyst width.
Dimensions: Range: Central body length: 37-41 µm; Central body width: 22-27 µm; Spine length: 9-12 µm.
Description: Very rarely 2 or 3 spines may be joined proximally by low crests. Distal bifurcation of a spine was observed once.
Affinities:
Davey and Verdier, 1971, p. 30
Protoellipsodinium spinosum may be distinguished from P. spinocristatum by the absence of well defined crests aligned parallel to the long axis of the cyst.