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Zeugrhabdotus sigmoides

Coccolithophyceae - Eiffellithales - Chiastozygaceae

Taxonomy
Zygodiscus sigmoides was named by Bramlette and Sullivan (1961).

It was recombined as Zeugrhabdotus sigmoides by Bown and Young (1997), Bown (1998).

Sister species lacking formal opinion data
Z. choffatii, Z. elegans, Z. embergerii, Z. embergerii, Z. sisyphus
Entered
by P. Bown on 2006-10-17

Synonymy list
YearName and author
1961Zygodiscus sigmoides Bramlette and Sullivan
1997Zeugrhabdotus sigmoides Bown and Young
1998Zeugrhabdotus sigmoides Bown

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RankNameAuthor
kingdomChromistaCavalier-Smith 1981
—Hacrobia
phylumHaptophytaHibberd ex Cavalier-Smith 1986
classCoccolithophyceae
RankNameAuthor
orderEiffellithalesRood et al. 1971
familyChiastozygaceaeRood et al. 1973
genusZeugrhabdotusReinhardt 1965
speciessigmoides(Bramlette and Sullivan 1961)

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.

†Zeugrhabdotus sigmoides Bramlette and Sullivan 1961
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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 NP1 to the top of the Early/Lower Pleistocene or 66.00000 to 0.77400 Ma

Collections (86 total)


Time interval Ma Country or state Original ID and collection number
Maastrichtian - Danian72.2 - 61.66South Pacific Zeugrhabdotus sigmoides (249218 249219 249220)
NP1 - NP266.0 - 64.5Indian Ocean Zeugrhabdotus sigmoides (247006)
Danian66.0 - 61.66USA (Missouri) Zygodiscus sigmoides (231964 232026)
Danian66.0 - 61.66Argentina (Chubut) Zeugrhabdotus sigmoides (172887)
Danian66.0 - 61.66North Atlantic Zeugrhabdotus sigmoides (265400 265404 265405 265407)
Danian - Selandian66.0 - 59.24North Atlantic Zeugrhabdotus sigmoides (265399 266463 266464 266465)
Danian - Selandian66.0 - 59.24South Pacific Zeugrhabdotus sigmoides (249217)
Paleocene66.0 - 56.0South Pacific Zeugrhabdotus sigmoides (256975 256977 256979 256980 256981)
Paleocene66.0 - 56.0North Atlantic Zeugrhabdotus sigmoides (266419 266420 266421 266422)
Paleocene66.0 - 56.0Indian Ocean Zeugrhabdotus sigmoides (254869 254871 254872)
Paleocene - Early/Lower Eocene66.0 - 48.07South Pacific Zeugrhabdotus sigmoides (256973 256974)
NP3 - NP464.5 - 61.3Indian Ocean Zeugrhabdotus sigmoides (247005)
Selandian61.66 - 59.24Tanzania (Lindi) Zeugrhabdotus sigmoides (179310)
Selandian61.66 - 59.24North Atlantic Zeugrhabdotus sigmoides (262414 262416 267073 267074)
Selandian61.66 - 59.24South Pacific Zeugrhabdotus sigmoides (249207 249208 249209 249210 249211 249212 249213 249215)
Selandian - Thanetian61.66 - 56.0North Atlantic Zeugrhabdotus sigmoides (262408 262409 262410 262411 262412 262413 266458 266459 266460 266462 267071 267072)
Selandian - Thanetian61.66 - 56.0South Pacific Zeugrhabdotus sigmoides (249201)
NP659.4 - 59.0Indian Ocean Zeugrhabdotus sigmoides (247004)
Thanetian59.24 - 56.0North Atlantic Zeugrhabdotus sigmoides (263832 263833 265394 265397 265398)
Thanetian - Ypresian59.24 - 48.07North Atlantic Zeugrhabdotus sigmoides (266456 266457)
Ypresian56.0 - 48.07North Atlantic Zeugrhabdotus sigmoides (262406 265383 265390 265393 266451 267057 267065)
Ypresian56.0 - 48.07North Pacific Zeugrhabdotus sigmoides (243274)
Miocene23.04 - 5.333Indian Ocean Zeugrhabdotus sigmoides (249065 249069 249079 249084 252546 252547)
Late/Upper Miocene11.63 - 5.333Indian Ocean Zeugrhabdotus sigmoides (254813 254838)
Late/Upper Pliocene3.6 - 2.58Indian Ocean Zeugrhabdotus sigmoides (254794 254797)
Late/Upper Pliocene - Early/Lower Pleistocene3.6 - 0.774Indian Ocean Zeugrhabdotus sigmoides (254793)
Early/Lower Pleistocene2.58 - 0.774Indian Ocean Zeugrhabdotus sigmoides (250431 250435)