PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Tranolithus orionatus

Coccolithophyceae - Eiffellithales - Chiastozygaceae

Taxonomy

Discolithus orionatus was named by Reinhardt (1966). It is the type species of Tranolithus.

It was recombined as Tranolithus orionatus by Reinhardt (1966), Bown (1998).

Sister species lacking formal opinion data

T. exiguus, T. phacelosus, T. phacelosus

Entered

by P. Bown on 2006-10-17

Synonymy list

Year	Name and author
1966	Discolithus orionatus Reinhardt
1966	Tranolithus orionatus Reinhardt
1998	Tranolithus orionatus Bown

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Rank	Name	Author
kingdom	Chromista	Cavalier-Smith 1981
—	Hacrobia
phylum	Haptophyta	Hibberd ex Cavalier-Smith 1986
class	Coccolithophyceae

Rank	Name	Author
order	Eiffellithales	Rood et al. 1971
family	Chiastozygaceae	Rood et al. 1973
genus	Tranolithus	Stover 1966
species	orionatus	(Reinhardt 1966)

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.

†Tranolithus orionatus Reinhardt 1966

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Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

low Mg calcitep

Environment:

oceanic, oligotrophic, marine, brackishp

Locomotion:

passively mobilep

Life habit:

planktonicp

Depth habitat:

surfacep

Diet:

"photoautotroph"p

Created:

2006-10-31 06:24:05

Modified:

2006-10-31 08:24:05

Source: p = phylum

Reference: Kiessling 2003

Age range: base of the Albian to the top of the Maastrichtian or 113.20000 to 66.00000 Ma

Collections (119 total)

Time interval	Ma	Country or state	Original ID and collection number
Albian	113.2 - 100.5	Indian Ocean	Tranolithus orionatus (254908 257058 257059 257060 257061 257062 257063 257064 257065 257066 257067 257069 258624 258626 258627)
Albian - Cenomanian	113.2 - 93.9	Indian Ocean	Tranolithus orionatus (254907 257056 257057)
Cenomanian	100.5 - 93.9	Indian Ocean	Tranolithus orionatus (257052 257053 257054 257055 258619 258620 258621)
Cenomanian - Turonian	100.5 - 89.8	Indian Ocean	Tranolithus orionatus (257051)
Late/Upper Cretaceous	100.5 - 66.0	North Atlantic	Tranolithus orionatus (265888)
Turonian	93.9 - 89.8	Indian Ocean	Tranolithus orionatus (250827 250830 250831 250832 250834 250835 250836 250838 250839 250840 250841 250842 250843 250844 250845 250846 250847 250848 250849 250851 250852 250853 250854 250855 250856 250857 250859 250860 250861 250862 250863 250864 250865 250866 250867 250868 250869 250870 250871 250872 250873 257044 257045 257046 257047 257048 257049 257050 258609 258610 258611 258612 258614 258615 258616 258617 258618)
Turonian - Coniacian	93.9 - 85.7	Indian Ocean	Tranolithus orionatus (257043)
Coniacian	89.8 - 85.7	Indian Ocean	Tranolithus orionatus (250819 250820 250821 250822 250823 257039 257040 257041 257042)
Coniacian - Santonian	89.8 - 83.6	Indian Ocean	Tranolithus orionatus (250818)
Santonian	85.7 - 83.6	Indian Ocean	Tranolithus orionatus (250806 250807 250808 250809 250810 250811 250812 250813 250815 250816 250817)
Santonian - Campanian	85.7 - 72.2	Indian Ocean	Tranolithus orionatus (250804 250805)
Campanian	83.6 - 72.2	Indian Ocean	Tranolithus orionatus (254903)
Campanian	83.6 - 72.2	North Atlantic	Tranolithus orionatus (268467)
Late/Upper Campanian	83.6 - 72.2	Romania	Tranolithus orionatus (155181)
CC23	75.8 - 72.2	Indian Ocean	Tranolithus orionatus (247015 247016)
Early/Lower Maastrichtian	72.2 - 66.0	Egypt	Tranolithus orionatus (240611 240616 240618 240622)
Late/Upper Maastrichtian	72.2 - 66.0	USA (Alabama)	Tranolithus orionatus (205803)
Maastrichtian	72.2 - 66.0	Egypt	Tranolithus orionatus (240631)