PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Phormocyrtis

Protozoa - Nassellaria - Eucyrtidiidae

Taxonomy

Phormocyrtis was named by Haeckel (1887) [Sepkoski's age data: T Pale R Sepkoski's reference number: 686]. It is extant.

It was assigned to Theoperidae by O'Conner (1994); to Eucyrtidiidae by De Wever et al. (2001); and to Nassellaria by Sepkoski (2002).

Species

P. cubense, P. striata, P. turgida, P. vasculum

Species lacking formal opinion data

P. alexandrae, P. cubensis, P. cubensis, P. exquisita, P. ligulata, P. proxima

Synonymy list

Year	Name and author
1887	Phormocyrtis Haeckel
1994	Phormocyrtis O'Conner p. 346
2001	Phormocyrtis De Wever et al. p. 278
2002	Phormocyrtis Sepkoski

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Rank	Name	Author
—	Life
—	Eukaryota	()
class	Protozoa	Goldfuss 1820
subphylum	Sarcodina	Schmarda 1871
class	Reticularea	Lankester 1885
subclass	Radiolaria	(Müller 1858)

Rank	Name	Author
superorder	Polycystina	(Ehrenberg 1838)
order	Nassellaria	Ehrenberg 1875
superfamily	Eucyrtidiacea	Ehrenberg 1847
family	Eucyrtidiidae	Ehrenberg 1847
genus	Phormocyrtis	Haeckel 1887

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.

G. Phormocyrtis Haeckel 1887

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†Phormocyrtis cubense Riedel and Sanfilippo 1971

†Phormocyrtis striata Brandt in Wetzel 1935

†Phormocyrtis turgida Krasheninnikov 1960

†Phormocyrtis vasculum O'Conner 1994

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 Danian to the top of the Early/Lower Miocene or 66.00000 to 15.98000 Ma

Collections (74 total)

Time interval	Ma	Country or state	Original ID and collection number
Maastrichtian - Danian	72.2 - 61.66	North Atlantic	P. striata (266060)
Danian - Selandian	66.0 - 59.24	North Atlantic	P. striata (266057 266058 266059)
Selandian - Thanetian	61.66 - 56.0	South Pacific	P. striata (258866 258867)
Selandian - Thanetian	61.66 - 56.0	North Atlantic	P. striata (262937 266056) P. striata, P. striata (266055)
Late/Upper Paleocene	59.24 - 56.0	China (Tibet)	P. exquisita, P. turgida (69734)
Thanetian	59.24 - 56.0	North Atlantic	P. striata, P. striata (262936)
Thanetian	59.24 - 56.0	Cyprus	P. cubensis, P. striata, P. turgida (90895)
Thanetian - Ypresian	59.24 - 48.07	North Atlantic	P. striata, P. striata, P. turgida (266053) P. striata, P. turgida (266054)
Thanetian - Eocene	59.24 - 33.9	South Pacific	P. ligulata, P. striata (258865)
Early/Lower Eocene	56.0 - 48.07	South Pacific	P. striata (247368 247371)
Ypresian	56.0 - 48.07	Cyprus	P. striata (90892 90893 90894)
Ypresian	56.0 - 48.07	North Pacific	P. cubensis (243862 243863 243865 243866) P. cubensis, P. striata (243859 243860 243861) P. striata (245050)
Ypresian	56.0 - 48.07	North Atlantic	P. striata (262930 262933 266049) P. striata, P. striata (262931) P. striata, P. turgida (262934)
Early/Lower Eocene - Middle Eocene	56.0 - 37.71	South Pacific	P. striata (247367)
Eocene	56.0 - 33.9	South Pacific	P. ligulata (258864) P. ligulata, P. striata (258860) P. proxima (258861) P. striata (258857)
Eocene	56.0 - 33.9	North Pacific	P. spp. (247758) P. striata (247756)
Eocene	56.0 - 33.9	North Atlantic	P. striata (262511 262512)
M. formosa LOZ - M. aragonensis/M. subbotinae CRZ	54.0 - 50.8	South Pacific	P. striata (259858)
M. aragonensis/M. subbotinae CRZ	52.3 - 50.8	South Pacific	P. striata (259856 259857)
Lutetian	48.07 - 41.03	Cyprus	P. striata (90889 90890 90891)
Lutetian	48.07 - 41.03	North Atlantic	P. striata (262924 262925 262926 262927 262928 262929)
Middle Eocene	48.07 - 37.71	South Pacific	P. ligulata (247360) P. proxima (254231 254233 254234) P. proxima, P. striata (254229 254235) P. striata (254225 254227 254232 254236)
M. lehneri PRZ	42.3 - 40.5	South Pacific	P. ligulata (259852)
Bartonian	41.03 - 37.71	South Pacific	P. striata (247929 247930)
Priabonian	37.71 - 33.9	South Pacific	P. ligulata, P. striata (247923 247924) P. striata (247926)
Oligocene	33.9 - 23.04	New Zealand	P. vasculum (90858 90859)
Late/Upper Oligocene	27.3 - 23.04	South Pacific	P. alexandrae (254211)
Early/Lower Miocene	23.04 - 15.98	South Pacific	P. alexandrae (254209)