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Escharisphaeridia enayi
Escharisphaeridia "enayi" Courtinat, 1989, p.181, pl.23, fig.6.
Holotype: Courtinat, 1989, pl.23, fig.6. Originally Escharisphaeridia, subsequently Omatidium. Taxonomic senior synonym: Escharisphaeridia psilata, according to Poulsen (1996, p.80). Age: Oxfordian.
Locus typicus: Mont-Rivel, Jura, France
Stratum typicum: Oxfordian
Translation Courtinat, 1989: LPP
Original diagnosis: Courtinat, 1989, p.181
Spherical to slightly ovoidal cyst formed by an smooth autophram only. The archaeopyle is apical; the operculum is free and multiplated. The operculum is terminated by a very short apical mamelon. The accessory archaeopyle sutures incise deeply into the autophragm.
Dimensions: cyst diameter 38-47 Ám, cyst thickness about 1 Ám.
Affinities:
Courtinat, 1989, p.181: E. enayi resembles Chytroeisphaeridia chytroeides in the
appearance of the autophragm, but the archaeopyle type allows a good differentiation of the two species (C. Chytroeides has a precingular archaeopyle).
Holotype: Courtinat, 1989, pl.23, fig.6. Originally Escharisphaeridia, subsequently Omatidium. Taxonomic senior synonym: Escharisphaeridia psilata, according to Poulsen (1996, p.80). Age: Oxfordian.
Locus typicus: Mont-Rivel, Jura, France
Stratum typicum: Oxfordian
Translation Courtinat, 1989: LPP
Original diagnosis: Courtinat, 1989, p.181
Spherical to slightly ovoidal cyst formed by an smooth autophram only. The archaeopyle is apical; the operculum is free and multiplated. The operculum is terminated by a very short apical mamelon. The accessory archaeopyle sutures incise deeply into the autophragm.
Dimensions: cyst diameter 38-47 Ám, cyst thickness about 1 Ám.
Affinities:
Courtinat, 1989, p.181: E. enayi resembles Chytroeisphaeridia chytroeides in the
appearance of the autophragm, but the archaeopyle type allows a good differentiation of the two species (C. Chytroeides has a precingular archaeopyle).