PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Kootenia acicularis

Artiopoda - Corynexochida - Dorypygidae

Taxonomy

Kootenia acicularis was named by Resser (1939). It is a 3D body fossil. Its type locality is 54s - Near mouth of North side Two Mile Canyon, 2 miles se of Malad, Wasatch Mts, which is in a Topazan carbonate limestone in the Langston Formation of Idaho.

Sister species lacking formal opinion data

K. abacanica, K. anomalica, K. baishagonensis, K. brevispina, K. browni, K. burgessensis, K. convoluta, K. elongata, K. gaspensis, K. gimmelfarbi, K. granulospinosa, K. ichangensis, K. jakutensis, K. koksuensis, K. lakutensis, K. libertyensis, K. magnaformis, K. marcoui, K. mckeei, K. mendosa, K. nebulosa, K. nodosa, K. oblivia, K. ontoensis, K. otoensis, K. radiata, K. tersa, K. virginiana, K. vologdini, K. yui, K. distensa

Synonymy list

Year	Name and author
1939	Kootenia acicularis Resser pp. 49, 50 figs. Plate 10, figs. 24 - 26
1994	Kootenia acicularis Sundberg pp. 21 - 24

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Ecdysozoa	Aguinaldo et al. 1997
—	Panarthropoda
phylum	Arthropoda	Gravenhorst 1843
class	Artiopoda	Hou and Bergstrom

Rank	Name	Author
class	Trilobita	Walch 1771
order	Corynexochida
suborder	Corynexochina	Kobayashi 1935
family	Dorypygidae	Kobayashi 1935
subfamily	Dorypyginae	Kobayashi 1935
genus	Kootenia	(Walcott 1899)
species	acicularis	Resser 1939

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.

†Kootenia acicularis Resser 1939

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Diagnosis

Reference	Diagnosis
F. A. Sundberg 1994	Kootenia with pygid-ium having 6 pairs of moderately thin, long spines; 4 axial rings; no axial nodes; moderately deep pleural furrows; and narrow border (5-15% pygidial length). Cranidium with slightly divergenr, concave axial furrows; moderate length palpcbral lobes (30- 35% glabcllar lengrh).

Measurements

No measurements are available

Composition:

low Mg calcitec

Composition 2:

chitinc

Entire body:

yessubg

Adult length:

1.0 to < 10subg

Adult width:

1.0 to < 10subg

Ribbing:

nonesubg

Spines:

minorsubg

Ontogeny:

molting, addition of partsc

Environment:

marinec

Locomotion:

actively mobilesubg

Life habit:

nektobenthicsubg

Diet:

carnivoresubg

Vision:

well-developedf

Created:

2009-02-26 11:46:41

Modified:

2009-09-21 22:36:35

Source: subg = subgenus, f = family, c = class

References: Aberhan et al. 2004, Hendy 2009, Whittington et al. 1997

Age range: base of the Delamaran to the top of the Topazan or 509.70000 to 504.50000 Ma

Collections (5 total)

Time interval	Ma	Country or state	Original ID and collection number
Delamaran	509.7 - 505.3	USA (Utah)	Kootenia acicularis (134114 134116 134117)
Delamaran	509.7 - 505.3	USA (Nevada)	Kootenia acicularis (134252)
Topazan	505.3 - 504.5	USA (Idaho)	Kootenia acicularis (type locality: 50208)