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M R D

Mesozoic Radiolaria Database
by Baumgartner (1995)

Radiolaria and Geologic Age
Biostratigraphic Age Assignment for Some Selected Data

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(Cretaceous) Berriasian �_ Valanginian �_ Hauterivian �_ Barremian �_ Aptian.........

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(Jurassic) ..... �_ Bajocian �_ Bathonian �_ Callovian �_ Oxfordian �_ Kimmeridgian �_ Tithonian

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MRD 3012
Eucyrtidiellum unumaense unumaense
(Yao) 1979
Age : Middle Jurassic
early-middle Bajocian to middle Callovian-early Oxfordian
Example Q977
Example Q1082

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MRD 3014
Eucyrtidiellum nodosum
Wakita 1988
Age : Middle Jurassic
early-middle Bajocian to late Oxfordian-early Kimmeridgian
Example Q1085

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MRD 3016
Eucyrtidiellum semifactum
Nagai and Mizutani 1990
Age : Middle Jurassic
latest Bajocian-early Bathonian to late Bathonian-early Callovian
Example Q1083
Example Q1084

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MRD 3017
Eucyrtidiellum ptyctum
(Riedel and Sanfilippo) 1974
Age : Middle to Late Jurassic
latest Bajocian-early Bathonian to late Kimmeridgian-early Tithonian
Example Q1376

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MRD 3049
Stichocapsa japonica
Yao 1979
Age : Middle Jurassic
early-Middle Bajocian to middle Callovian-early Oxfordian
Example Q1093

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MRD 3245
Parvicingula mashitaensis
Mizutani 1981
Age : late Jurassic to early Cretaceous
middle Callovian-early Oxfordian to late Berriasian-earliest Valanginian
Example Q1380

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MRD 3294
Xitus gifuensis
Mizutani 1981
Age : Late Jurassic to Early Cretaceous
late Kimmeridgian-early Tithonian to early Tithonian-early Valanginian
Example Q1377

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MRD 3305
Archaeodictyomitra minoensis
(Mizutani) 1981
Age : Middle Jurassic to Late Jurassic
Middle Late Oxfordian to Early-Early Late Tithonian
Example Q1379

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MRD 3307
Cyrtocapsa mastoidea
Yao 1979
Age : Middle Jurassic
Early MIddle Bajocian to Late Bajocian
Example Q1080

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MRD 3406
Mirifusus dianae baileyi
Pessagno 1977
Age : Late Jurassic
Middle-Late Oxfordian to late Kimmeridgian-early Tithonian
Example Q1373
Example Q1374

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MRD 4014
Dictyomitrella (?) kamoensis
Mizutani and Kido 1983
Age : Middle Jurassic
early-middle Bajocian to late Bathonian-early Callovian
Example Q963
Example Q1063

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MRD 4049
Tricolocapsa (?) fusiformis
Yao 1979
Age : Middle Jurassic
Early-Middle Bajocian to latest Bajocian-early Bathonian
Example Q1088

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