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Schedocardia brewerii

Bivalvia - Cardiida - Cardiidae

Taxonomy
Cardium brewerii was named by Gabb (1864). It is not extant.

It was recombined as Plagiocardium (Schedocardia) brewerii by Stewart (1930), Turner (1938); it was recombined as Plagiocardium brewerii by Hoots (1931); it was recombined as Loxocardium (Schedocardia) brewerii by Weaver (1942); it was recombined as Acanthocardia brewerii by Givens and Kennedy (1979); it was recombined as Acanthocardia (Schedocardia) brewerii by Squires (1984), Squires (1987), Moore (2003); it was recombined as Schedocardia breweri by Nilsen (1987); it was recombined as Schedocardia brewerii by Hendy (2020).

Subspecies
Plagiocardium (Schedocardia) brewerii hartleyense
Sister species lacking formal opinion data
Acanthocardium hatchetigbeense

Synonyms
  • Arca columbiana was named by Weaver and Van Winkle Palmer (1922). Its type specimen is UW (unknown number), a shell, and it is a 3D body fossil. Its type locality is UW 337, which is in a Bartonian marine horizon in the Cowlitz Formation of Washington.

    It was synonymized subjectively with Schedocardia brewerii by Weaver (1943).
  • Cardium oldroydi was named by Weaver and Van Winkle Palmer (1922). Its type specimen is CSS 7438, a shell, and 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 Loxocardium (Schedocardia) brewerii oldroydi by Weaver (1942); it was synonymized subjectively with Schedocardia brewerii by Hendy (2020).
Synonymy list
YearName and author
1864Cardium brewerii Gabb p. 173 figs. pl. 24, fig. 155
1917Cardium brewerii Waring p. 92 figs. Pl. 14, Fig. 9
1922Arca columbiana Weaver and Van Winkle Palmer p. 8 figs. pl. 8, fig. 1
1922Cardium oldroydi Weaver and Van Winkle Palmer p. 20 figs. pl. 8, figs. 3, 11
1930Plagiocardium (Schedocardia) brewerii Stewart pp. 256 - 257 figs. Plate 12, fig. 6
1931Plagiocardium brewerii Hoots p. 92
1938Plagiocardium (Schedocardia) brewerii Turner p. 52
1942Loxocardium (Schedocardia) brewerii oldroydi Weaver
1942Loxocardium (Schedocardia) brewerii Weaver p. 153
1979Acanthocardia brewerii Givens and Kennedy
1984Acanthocardia (Schedocardia) brewerii Squires p. 49 figs. Figures 12a-b
1987Schedocardia breweri Nilsen
1987Acanthocardia (Schedocardia) brewerii Squires p. 65 fig. 112
2003Acanthocardia (Schedocardia) brewerii Moore
2020Schedocardia brewerii Hendy

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassHeteroconchia(Gray 1854)
—CardiomorphiFerussac 1822
—CardioniFerussac 1822
RankNameAuthor
—CardiidiaFerussac 1822
—CardiataFerussac 1822
superorderCardiiformiiFerussac 1822
orderCardiidaFerussac 1822
suborderCardiidinaFerussac 1822
—CardioideiFerussac 1822
superfamilyCardioidea(Lamarck 1809)
familyCardiidaeLamarck 1809
—Neocardiids
—EucardiidsSchneider 1995
subfamilyCardiinaeLamarck 1809
genusSchedocardia()
speciesbrewerii()

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.

†Schedocardia brewerii Gabb 1864
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Invalid names: Arca columbiana Weaver and Van Winkle Palmer 1922 [synonym], Cardium oldroydi Weaver and Van Winkle Palmer 1922 [synonym]
Diagnosis
ReferenceDiagnosis
C. E. Weaver and K. Van Winkle Palmer 1922 (Arca columbiana)Shell large and rectangular in outline ; nearly equilateral ; beaks
prominent, umbonal area broad ; hinge line straight ; cardinal area narrow ; dorsal
line sloping slightly from the beaks ; anterior end rounded, passing into the
ventral margin with a curve ; ventral margin only slightly curved, extending
abruptly into the posterior end ; posterior end straight ; posterior end is more
flaring and concave than the anterior end ; there is a tendency for a slight
umbonal ridge to extend from the beaks to the posterior ventral margin ; shell
ornamented with 22 flat-topped, wide, very prominent radiating ribs with interspaces
nearly equal to the width of the ribs.
Measurements
No measurements are available
Composition: aragonitec
Locomotion: facultatively mobilef
Life habit: infaunalf
Diet: suspension feederf
Vision: blindc
Created: 2009-07-04 09:31:14
Modified: 2009-08-17 22:21:59
Source: f = family, c = class
References: Aberhan et al. 2004, Todd 2001

Age range: base of the Late/Upper Paleocene to the top of the Late/Upper Eocene or 59.24000 to 33.90000 Ma

Collections (79 total)


Time interval Ma Country or state Original ID and collection number
Danian - Thanetian66.0 - 56.0Russian Federation Acanthocardia breweri (50039)
Paleocene66.0 - 56.0Mexico (Baja California Sur) Cardium brewerii (43761)
Thanetian59.24 - 56.0USA (California) Cardium brewerii (193038 238841)
Late/Upper Paleocene - Early/Lower Eocene59.24 - 48.07USA (California) Plagiocardium brewerii (237476 237477)
Early/Lower Eocene56.0 - 48.07USA (California) Acanthocardia breweri (111552)
Ypresian56.0 - 48.07USA (Oregon) Acanthocardia brewerii (52266 52267 52273 52277 52279) Plagiocardium brewerii (200795 200800)
Ypresian56.0 - 48.07USA (California) Acanthocardia brewerii (177614 178718 178748 178749 193545 193549) Cardium hartleyensis (52422 52433) Plagiocardium brewerii (78722 122294 122656)
Ypresian - Lutetian56.0 - 41.03USA (Oregon) Plagiocardium brewerii (200902)
Ypresian - Lutetian56.0 - 41.03USA (California) Acanthocardia brewerii (8011)
Eocene56.0 - 33.9USA (California) Cardium brewerii (91476 194436 207112 207113 207123 207126)
Lutetian48.07 - 41.03USA (California) Acanthocardia brewerii (8012 51922 94820 94822 94824 94828 94829 200659 200757 200759 200765 200766 202046 202094 204961 207183 207187 207189) Cardium brewerii (194413 194416)
Lutetian48.07 - 41.03USA (Oregon) Plagiocardium brewerii (200870 200874 200875 200876 200878 200880 200886 200912 201033 201036 201040)
Middle Eocene48.07 - 37.71USA (Alaska) Plagiocardium breweri (44070) Shedocardia sp. (44069)
Middle Eocene48.07 - 37.71USA (California) Acanthocardia brewerii (202080)
Bartonian41.03 - 37.71USA (California) Cardium brewerii (122340) Schedocardia breweri (52803 52804 52827 52828)
Bartonian41.03 - 37.71USA (Washington) Acanthocardia brewerii (52204 52207 203164) Arca columbiana (201127) Cardium brewerii (207129) Cardium oldroydi (201124)
Late/Upper Eocene37.71 - 33.9USA (California) Cardium brewerii (239767)