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Albertella proveedora

Artiopoda - Corynexochida - Zacanthoididae

Taxonomy
Albertella proveedora was named by Lochman (1952). Its type specimen is U.S.N.M,No.115776, a cephalon/head, and it is a 3D body fossil.

Sister species lacking formal opinion data
A. aberta, A. alberti, A. declivis, A. floridana, A. hellena, A. limbata, A. microps, A. pirabensis

Synonymy list
YearName and author
1952Albertella proveedora Lochman pp. 137-139 figs. 1-8

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou and Bergstrom
classTrilobitaWalch 1771
orderCorynexochida
suborderCorynexochinaKobayashi 1935
familyZacanthoididaeSwinnerton 1915
genusAlbertella
speciesproveedora

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.

†Albertella proveedora Lochman 1952
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Diagnosis
ReferenceDiagnosis
C. Lochman 1952The species appears quite close to Albertella bosworthi Walcott both in the forward expansion of the glabella and the five segments of the axis of the pygidium. The pygidium of A. proveedora Lochman differs, however, in greater width of the pleural lobes in proportion to the axis, and the apparent absence of the median nodes on the axis. The cranidium differs in the medium length of the palpebral lobes. Those of A. bosworthi Walcott appear to have been somewhat longer even though the lengthening due to crushing of the shale matrix is discounted. This situation presents a problem which should receive further study as it appears that in all limestone specimens of the cranidium the palpebral lobes are of medium length, where as in all shale specimens they appear to be larger.
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
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: actively mobileo
Life habit: nektobenthico
Diet: carnivoreo
Vision: well-developedf
Created: 2009-06-02 14:41:56
Modified: 2009-06-02 16:41:56
Source: g = genus, f = family, o = order, c = class
References: Aberhan et al. 2004, Hendy et al. 2009, Hendy 2009

Age range: base of the Delamaran to the top of the Menevian or 509.70000 to 499.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Delamaran - Menevian509.7 - 499.5Mexico Albertella proveedora (10687)