PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Crucella magna

Protozoa - Spumellaria - Hagiastridae

Taxonomy

Pseudocrucella magna was named by Blome (1984). Its type locality is Puale Bay Rads, 80AJM-8A, Alaska, which is in a Callovian/Callovian basinal (siliciclastic) lime mudstone/siltstone in the Shelikof Formation of Alaska.

It was recombined as Crucella magna by Kiessling (1995).

Sister species lacking formal opinion data

C. affinis, C. aster, C. baliarica, C. bisulca, C. bossoensis, C. capaluluensis, C. carterae, C. crassa, C. crucifera, C. euganea, C. hamiltoni, C. hispana, C. inflexa, C. latum, C. linda, C. lipmanae, C. planum, C. remanei, C. robusta, C. taliabuensis, C. thurowi, C. westermanni

Synonyms

Crucella angulata was named by Yang (1993).

It was synonymized subjectively with Crucella magna by Kiessling (1995).

Synonymy list

Year	Name and author
1984	Pseudocrucella magna Blome
1993	Crucella angulata Yang
1995	Crucella magna Kiessling

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Rank	Name	Author
—	Life
—	Eukaryota	()
class	Protozoa	Goldfuss 1820
subphylum	Sarcodina	Schmarda 1871
class	Reticularea	Lankester 1885

Rank	Name	Author
subclass	Radiolaria	(Müller 1858)
order	Spumellaria	Ehrenberg 1875
family	Hagiastridae	Riedel 1971
genus	Crucella	Pessagno 1971
species	magna	(Blome 1984)

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.

†Crucella magna Blome 1984

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Invalid names: Crucella angulata Yang 1993 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

silicap

Environment:

marinep

Locomotion:

passively mobilep

Life habit:

planktonicp

Diet:

omnivorep

Created:

2005-01-28 01:13:47

Modified:

2005-01-28 03:13:47

Source: p = phylum

Reference: Kiessling 1999

Age range: base of the Early/Lower Callovian to the top of the Late/Upper Tithonian or 165.30000 to 143.10000 Ma

Collections (28 total)

Time interval	Ma	Country or state	Original ID and collection number
Early/Lower Callovian - Middle Callovian	165.3 - 161.5	USA (Alaska)	Pseudocrucella magna (50703 type locality: 50705)
Middle Oxfordian - Early/Lower Kimmeridgian	161.5 - 152.21	Slovakia	Crucella angulata (53853)
Late/Upper Kimmeridgian	152.21 - 149.2	Antarctica	Crucella magna (46960 46961)
Late/Upper Kimmeridgian	152.21 - 149.2	Antarctica (Antarctic Peninsula)	Crucella magna (9956)
Early/Lower Tithonian	149.2 - 145.06	Antarctica	Crucella magna (46962 46963 46964 46966 46971 46972 51826 51827)
Early/Lower Tithonian	149.2 - 145.06	USA (California)	Crucella angulata (50743)
Early/Lower Tithonian	149.2 - 145.06	Mexico (San Luis Potosi)	Crucella angulata (51755 51760 51762 51763 51764 51765 51768 51770 51771 51773 51776)
Late/Upper Tithonian	145.06 - 143.1	Antarctica	Crucella magna (46968)
Late/Upper Tithonian	145.06 - 143.1	Mexico (San Luis Potosi)	Crucella angulata (51775)