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Laxtorum

Protozoa - Nassellaria - Canoptidae

Taxonomy
Laxtorum was named by Blome (1984).

It was assigned to Canoptidae by De Wever et al. (2001).

Synonymy list
YearName and author
1984Laxtorum Blome
2001Laxtorum De Wever et al. p. 269

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RankNameAuthor
—Life
—Eukaryota()
classProtozoaGoldfuss 1820
subphylumSarcodinaSchmarda 1871
classReticulareaLankester 1885
subclassRadiolaria(Müller 1858)
RankNameAuthor
superorderPolycystina(Ehrenberg 1838)
orderNassellariaEhrenberg 1875
superfamilyAmphipyndaceaRiedel 1967
familyCanoptidae
genusLaxtorumBlome 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.

G. †Laxtorum Blome 1984
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†Laxtorum capitaneum Carter 1993
†Laxtorum hemingense Carter et al. 1998
†Laxtorum hichisoense Isozaki and Matsuda 1985
†Laxtorum jurassicum Isozaki and Matsuda 1985
†Laxtorum kulense Blome 1984
†Laxtorum perfectum Carter 1993
†Laxtorum porterheadense Carter 1993
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 Ladinian to the top of the Aalenian or 242.00000 to 170.30000 Ma

Collections (75 total)


Time interval Ma Country or state Original ID and collection number
Ladinian242.0 - 237.0Thailand L. hindei (73875)
Tuvalian232.0 - 221.5Japan L. carnicus (217930)
Lacian221.5 - 215.56Cyprus L. sp. (73854)
Rhaetian208.5 - 201.3Canada (British Columbia) L. capitaneum (94714) L. capitaneum, L. perfectum (94715 94716) L. capitaneum, L. perfectum, L. porterheadense (94717 94758 94759 94760 94764) L. capitaneum, L. porterheadense (94713 94762) L. kulense (94701 94702 94724 94725 94726 94728 94729 94731 94744) L. perfectum (94720) L. porterheadense (94706 94753 94755 94763) L. sp., L. perfectum (97480 97492)
Rhaetian208.5 - 201.3Hungary L. sp., L. capitaneum, L. perfectum, L. porterheadense (87045)
Rhaetian208.5 - 201.3Nicaragua L. capitaneum (209712)
Rhaetian208.5 - 201.3Turkey L. capitaneum (59171 59172 59173) L. capitaneum, L. perfectum (130668 130671 130674) L. perfectum (130670 130672 130673)
Early/Lower Jurassic201.4 - 174.7Japan L. sp. A (120131 120134)
Hettangian201.3 - 199.3Hungary L. sp. (87047)
Early/Lower Hettangian201.3 - 196.5Canada (British Columbia) L. perfectum (97483) L. sp., L. perfectum (97489)
Late/Upper Hettangian201.3 - 196.5Canada (British Columbia) L. hemingense (34144 94376)
Sinemurian199.3 - 190.8Turkey L. sp. A, L. sp. B (33682)
Sinemurian - Pliensbachian199.3 - 182.7Japan L. sp. A (119995 120001)
Early/Lower Sinemurian196.5 - 189.6Canada (British Columbia) L. hemingense (94306 94380)
Late/Upper Sinemurian196.5 - 189.6Canada (British Columbia) L. hemingense (94346 94347 94350 94364 94382 94384 94418 94420)
Early/Lower Toarcian183.0 - 182.0Japan L. sp. A0 (51710)
Middle Toarcian - Aalenian182.0 - 170.3Japan L. sp. (124899)
Early/Lower Aalenian175.6 - 171.6Japan L. jurassicum (120194)
Early/Lower Aalenian175.6 - 171.6Germany L. sp. (59493 59494 59495 59496 59497)
Early/Lower Aalenian - Middle Aalenian175.6 - 171.6Japan L. sp. A, L. sp. C, L. sp. B, L. jurassicum, L. hichisoense (51711)
Late/Upper Aalenian175.6 - 171.6Japan L. sp. B, L. sp. D (51712) L. sp. T008, L. sp. T019 (54166)
Aalenian174.1 - 170.3China (Tibet) L. hichisoense (51617)
Aalenian174.1 - 170.3Japan L. jurassicum (76522)
Early/Lower Bajocian171.6 - 168.4Japan L. sp. B (51713)
Early/Lower Bajocian - Late/Upper Bajocian171.6 - 167.7Armenia L. hichioense (131354)