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Lloydia

Artiopoda - Corynexochida - Leiostegiidae

Taxonomy
Lloydia was named by Vogdes (1893). It is not extant.

It was assigned to Asaphidae by Phleger (1933); to Trilobita by Whittington (1968); and to Leiostegiidae by Harrington and Leanza (1957), Jell and Adrain (2002).

Species
L. (Evansaspis), L. (Leiostegium), L. obsoletus
Species lacking formal opinion data
L. saffordi

Synonymy list
YearName and author
1893Lloydia Vogdes
1933Lloydia Phleger, Jr. p. 11
1957Lloydia Harrington and Leanza
1968Lloydia Whittington
2002Lloydia Jell and Adrain p. 399

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou and Bergstrom
classTrilobitaWalch 1771
orderCorynexochida
suborderLeiostegiinaBradley 1925
superfamilyLeiostegioideaBradley 1925
familyLeiostegiidaeBradley 1925
genusLloydiaVogdes 1893

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. †Lloydia Vogdes 1893
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Subg. †Lloydia (Evansaspis) Kobayashi 1955
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Subg. †Lloydia (Leiostegium) Raymond 1913
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†Lloydia (Leiostegium) douglasi Harrington 1937
†Lloydia obsoletus Phleger, Jr. 1933
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: actively mobileo
Life habit: nektobenthico
Diet: carnivoreo
Vision: well-developedf
Created: 2009-12-14 06:30:50
Modified: 2009-12-14 08:30:50
Source: f = family, o = order, c = class
References: Hendy et al. 2009, Whittington et al. 1997, Aberhan et al. 2004

Age range: base of the Tremadoc to the top of the Llanvirn or 486.40000 to 458.20000 Ma

Collections (20 total)


Time interval Ma Country or state Original ID and collection number
Demingian486.85 - 483.4USA (Montana) L. sp. A (69028)
Demingian486.85 - 483.4USA (North Dakota) L. sp. (69035)
Early/Lower Ordovician486.85 - 471.3Canada (Newfoundland) L. saffordi (198245)
Tremadoc486.4 - 477.1Argentina L. sp. (8897)
Tremadoc486.4 - 477.1Canada (Newfoundland and Labrador) L. sp. (78091)
Tremadoc486.4 - 477.1Argentina (Jujuy) L. douglasi (9081)
Tremadoc486.4 - 477.1Argentina (Salta) L. douglasi (115768 115814 115815 115822 115824)
Stairsian483.4 - 481.7USA (North Dakota) L. formosa (414 119478)
Tulean481.7 - 475.3USA (Montana) L. sp. (287)
Tulean481.7 - 475.3USA (Utah) Leiostegium formosa (104075 104077 104080)
Arenig477.1 - 468.0USA (Montana) L. sp. (286)
Whiterockian471.3 - 457.3USA (California) L. obsoletus (205650)
Llanvirn468.0 - 458.2Canada (Newfoundland and Labrador) L. sp. (78097)