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Brachidontes (Brachidontes) cowlitzensis

Bivalvia - Mytilida - Mytilidae

Taxonomy
Modiolus (Brachydontes) cowlitzensis was named by Weaver and Palmer (1922). It is a 3D body fossil. Its type locality is UW 329, which is in a Bartonian marine horizon in the Cowlitz Formation of Washington.

It was recombined as Brachydontes cowlitzensis by Turner (1938); it was recombined as Brachidontes (Brachidontes) cowlitzensis by Moore (1983), Squires (1984), Squires (1987) and Squires (1988).

Synonyms
Synonymy list
YearName and author
1864Modiola ornata Gabb pp. 184 - 185 figs. pl. 24, fig. 166
1914Modiolus ornatus Dickerson p. 73
1922Modiolus (Brachydontes) cowlitzensis Weaver and Palmer p. 16 figs. pl. 9, fig. 19
1927Modiolus (Brachydontes) ornatus Clark and Woodford p. 89 figs. Plate 14, figure 10
1927Brachydontes ornatus Hanna p. 278
1938Brachydontes cowlitzensis Turner p. 45
1949Brachidontes ornatus Weaver p. 55
1983Brachidontes (Brachidontes) cowlitzensis Moore p. A66 figs. Plate 17, figure 1
1984Brachidontes (Brachidontes) cowlitzensis Squires p. 42 figs. Figure 10e
1987Brachiodontes ornatus Nilsen pp. 90, 91
1987Brachidontes (Brachidontes) cowlitzensis Squires p. 56 fig. 92
1988Brachidontes (Brachidontes) cowlitzensis Squires p. 18 fig. 47

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
RankNameAuthor
infraclassPteriomorphia(Beurlen 1944)
—MytilomorphiFerussac 1822
orderMytilida(Rafinesque 1815)
superfamilyMytiloideaRafinesque 1815
familyMytilidaeRafinesque 1815
subfamilyMytilinaeRafinesque 1815
genusBrachidontesSwainson 1840
subgenusBrachidontesSwainson 1840
speciescowlitzensis()

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.

†Brachidontes (Brachidontes) cowlitzensis Weaver and Palmer 1922
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Invalid names: Modiola ornata Gabb 1864 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragoniteg
Entire body: yesf
Adult length: 10 to < 100f
Adult width: 10 to < 100f
Adult height: 10 to < 100f
Thickness: intermediatef
Folds: nonef
Ribbing: minorf
Spines: nonef
Internal reinforcement: nonef
Ontogeny: accretionf
Environment: lagoonal, coastal, inner shelf, outer shelf, oceanic, brackish, freshwaterf
Locomotion: stationaryg
Attached: yesg
Life habit: epifaunalg
Diet: suspension feederg
Vision: blindc
Created: 2007-11-26 08:33:37
Modified: 2009-08-18 19:39:33
Source: g = genus, f = family, c = class
References: Kiessling 2004, Aberhan et al. 2004

Age range: base of the Thanetian to the top of the Bartonian or 59.20000 to 38.00000 Ma

Collections (62 total)


Time interval Ma Country or state Original ID and collection number
Thanetian59.2 - 56.0USA (California) Brachidontes ornatus (52612 52613)
Ypresian56.0 - 47.8USA (Washington) Brachidontes cowlitzensis (5544 5549)
Ypresian56.0 - 47.8USA (California) Brachidontes cowlitzensis (122294 178748 201250) Brachidontes ornatus (52614) Modiolus ornatus (52421 52422 52423 52424 52426 52428 52429 52430 52431 52434)
Ypresian56.0 - 47.8USA (Oregon) Brachidontes cowlitzensis (52266 52267 52268 52272 52273 52275 52278 52303 52304 52305 200795)
Ypresian - Lutetian56.0 - 41.3USA (California) Brachidontes cowlitzensis (8011)
Ypresian - Lutetian56.0 - 41.3USA (Oregon) Volsella cowlitzensis (37871)
Early/Lower Eocene55.8 - 48.6USA (California) Brachidontes cowlitzensis (111554)
Lutetian47.8 - 41.3USA (California) Brachidontes cowlitzensis (5532 8012 94820 94821 94822 94827 178733 194412 194413 194414 200731 200761 200762 200763 200764 200766 200845 200852 201701 202047 207156 207158 207172)
Bartonian41.3 - 38.0USA (Alaska) Brachidontes cowlitzensis (194397)
Bartonian41.3 - 38.0USA (California) Brachiodontes ornatus (52803)
Bartonian41.3 - 38.0USA (Washington) Brachidontes cowlitzensis (52204 52207 161922) Modiolus cowlitzensis (201124 203164)