PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Phestia jamesi

Bivalvia - Nuculanida - Polidevciidae

Taxonomy

Polidevcia jamesi was named by Biakov (2002). Its type specimen is MCGS 29/1019, a valve (Right valve), and it is a cast. Its type locality is Zun-Shiveya Ravine, site 1487/7, Chiron Depression, which is in a Sakmarian marine horizon in the Zhipkosh Formation of the Russian Federation.

It was recombined as Phestia jamesi by Biakov (2019).

Sister species lacking formal opinion data

P. ahrendi, P. arenacea, P. bellistriata, P. hegani, P. kasanensis, P. omolonica, P. ovata, P. pluvia, P. ranfti, P. suggatei, P. viator

Synonymy list

Year	Name and author
2002	Polidevcia jamesi Biakov p. 463 figs. Pl 5, fig 3
2019	Phestia jamesi Biakov p. 245 figs. Pl 3, fig 2

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Bivalvia
—	Eubivalvia

Rank	Name	Author
subclass	Protobranchia	(Pelseneer 1889)
superorder	Nuculaniformii	Carter et al. 2000
order	Nuculanida	(Carter et al. 2000)
superfamily	Nuculanoidea	Adams and Adams 1858
family	Polidevciidae	Kumpera 1960
subfamily	Phestiinae	Logan 1967
genus	Phestia	Chernyshev 1951
species	jamesi	()

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.

†Phestia jamesi Biakov 2002

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Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
valve height	2	11.5	10.8	12.2	11.5	0.990

Composition:

aragonitec

Locomotion:

facultatively mobilesuperf

Life habit:

infaunalsuperf

Diet:

deposit feedersuperf

Vision:

blindc

Created:

2009-09-09 13:26:01

Modified:

2009-09-09 15:26:01

Source: superf = superfamily, c = class

References: Aberhan et al. 2004, Sanchez Roig 1926

Age range: base of the Gzhelian to the top of the Artinskian or 303.70000 to 279.30000 Ma

Collections (4 total)

Time interval	Ma	Country or state	Original ID and collection number
Gzhelian - Asselian	303.7 - 295.5	Russian Federation	Phestia jamesi (202199)
Sakmarian	293.52 - 290.1	Russian Federation	Polidevcia jamesi (type locality: 102155 102160)
Artinskian	290.1 - 279.3	Russian Federation	Polidevcia jamesi (102162)