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Marrolithus

Trilobita - Trinucleida - Trinucleidae

Taxonomy
Marrolithus was named by Bancroft (1929) [Sepkoski's age data: O Llvi-u O Cara-m Sepkoski's reference number: 378].

It was assigned to Trinucleidae by Jell and Adrain (2002); and to Asaphida by Sepkoski (2002).

Species
M. orthogonius
Species lacking formal opinion data
M. ultimus

Synonymy list
YearName and author
1929Marrolithus Bancroft
2002Marrolithus Jell and Adrain p. 403
2002Marrolithus Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
subclassLibristoma
orderTrinucleida(Swinnerton 1915)
familyTrinucleidaeHawle and Corda 1847
genusMarrolithusBancroft 1929

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. †Marrolithus Bancroft 1929
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Spines: minorg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: suspension feederf
Vision: blindg
Comments: BODY SIZE: Data from Harrington et al. (1959).g
Created: 2009-06-09 08:27:40
Modified: 2010-01-23 07:44:20
Source: g = genus, f = family, c = class
References: Aberhan et al. 2004, Hendy 2009

Age range: base of the Llandeilo to the top of the Aurelucian or 461.10000 to 456.60000 Ma

Collections (39 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Llandeilo466.0 - 460.9United Kingdom (Wales) M. sp. (3366)
Late/Upper Llanvirn463.5 - 460.9United Kingdom (Wales) M. sp. (3318 69537 69538 69543 69544 69545 69549 69582 69583 69585)
Late/Upper Llanvirn463.5 - 460.9United Kingdom M. sp. (69542 69550 69555 69560 69572 69573 69575 69576 69577 69578 69579 69580 69602)
Late/Upper Llandeilo461.1 - 458.4United Kingdom (Wales) M. sp. (3364)
Llandeilo461.1 - 458.4United Kingdom M. sp. (69586 69587 69588 69590)
Dobrotivian459.0 - 457.9Morocco M. sp. (20999)
Dobrotivian - Berounian459.0 - 449.8France M. sp. (20846)
Dobrotivian - Berounian459.0 - 449.8France (Calvados) M. sp. (20884)
Aurelucian458.4 - 456.6United Kingdom (Shropshire) M. ultimus (219877)
Costonian - Longvillian458.4 - 455.0Venezuela (Merida Andes) M. sp. (8858)
Berounian457.9 - 449.8Morocco (Zagora) M. sp. (21000)
Berounian457.9 - 449.8France (Mayenne) M. sp. (20922)
Vinice457.5 - 455.8Czech Republic M. ornatus, M. ornatus (3864)
Zahorany - Late/Upper Ordovician457.5 - 443.8Czech Republic M. ornatus (3866) M. sp. (3865)