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Angulus

Bivalvia - Cardiida - Tellinidae

Taxonomy
Angulus was named by Megerle (1811) [Sepkoski's age data: T Than R Sepkoski's reference number: 1112]. It is extant. Its type is Tellina lanceolata.

It was reranked as Tellina (Angulus) by Glenn (1904), Aldrich (1911), Harris (1919), Oldroyd (1925), Pilsbry and Olsson (1941), Woodring (1982), Coan et al. (2000) and Moore (2003).

It was assigned to Tellinidae by Wienrich (1999) and Todd (2001); to Veneroida by Sepkoski (2002); to Tellina by Glenn (1904), Aldrich (1911), Harris (1919), Oldroyd (1925), Pilsbry and Olsson (1941), Woodring (1982), Coan et al. (2000) and Moore (2003); and to Tellininae by Vokes (1980) and Marquet et al. (2008).

Species
A. (Lamyella), A. (Peronaea), A. agilis, A. democracianus, A. diantha, A. merus (syn. Tellina promera), A. texanus (syn. Moerella sayi), A. umbra, A. versicolor (syn. Tellina (Angulus) pauperata), Tellina (Angulus) buttoni, Tellina (Angulus) cadieni, Tellina (Angulus) castacana, Tellina (Angulus) diabloensis, Tellina (Angulus) domenginensis, Tellina (Angulus) entaenia, Tellina (Angulus) joaquinensis, Tellina (Angulus) jollaensis, Tellina (Angulus) lanceolata, Tellina (Angulus) longa, Tellina (Angulus) modesta, Tellina (Angulus) packardi, Tellina (Angulus) producta, Tellina (Angulus) prolenta, Tellina (Angulus) scrippsensis, Tellina (Angulus) simiensis, Tellina (Angulus) subplana, Tellina (Angulus) vorbei, Tellina (Angulus) woodringi
Species lacking formal opinion data
A. donacillus, A. edgari, A. inflata, A. maxima, A. vestalioides, Tellina felix

Synonymy list
YearName and author
1811Angulus Megerle
1904Tellina (Angulus) Glenn p. 298
1911Tellina (Angulus) Aldrich p. 4 figs. pl. 1, fig. 5
1919Tellina (Angulus) Harris p. 162
1925Tellina (Angulus) Oldroyd p. 7
1941Tellina (Angulus) Pilsbry and Olsson p. 11
1980Angulus Vokes p. 142
1982Tellina (Angulus) Woodring p. 665
1999Angulus Wienrich p. 246
2000Tellina (Angulus) Coan et al. p. 400
2001Angulus Todd
2002Angulus Sepkoski
2003Tellina (Angulus) Moore
2008Angulus Marquet et al. p. 21

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassHeteroconchia(Gray 1854)
—CardiomorphiFerussac 1822
RankNameAuthor
—CardioniFerussac 1822
—CardiidiaFerussac 1822
—CardiataFerussac 1822
superorderCardiiformiiFerussac 1822
orderCardiidaFerussac 1822
suborderCardiidinaFerussac 1822
—CardioideiFerussac 1822
superfamilyTellinoidea(Blainville 1814)
familyTellinidaeBlainville 1814
subfamilyTellininaeBlainville 1814
genusAngulusMegerle 1811

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.

G. Angulus Megerle 1811
show all | hide all
Subg. †Angulus (Lamyella) Glibert and van de Poel 1967
+
Subg. Angulus (Peronaea) Poli 1791
+
†Angulus (Peronaea) benedeni Nyst and Westendorp 1839
Angulus agilis Stimpson 1857
†Angulus democracianus Hodson 1931
Angulus diantha Boss 1964
Angulus merus Say 1834
+
Invalid names: Tellina promera Dall 1900 [synonym]
Angulus texanus Dall 1900
+
Invalid names: Moerella sayi Dall 1900 [synonym]
†Angulus umbra Dall 1900
Angulus versicolor De Kay 1843
+
Invalid names: Tellina (Angulus) pauperata d'Orbigny 1853 [synonym]
Tellina (Angulus) cadieni Coan et al. 2000
†Tellina (Angulus) castacana Anderson and Hanna 1925
†Tellina (Angulus) jollaensis Dickerson 1916
†Tellina (Angulus) packardi Dickerson 1914
†Tellina (Angulus) subplana d'Orbigny 1833
Diagnosis
ReferenceDiagnosis
T. H. Aldrich 1911Misspelt in text [Tellina (Angelus)], spelt correctly in figure [Tellina (Angulus)].
Measurements
No measurements are available
Composition: aragonitef
Locomotion: facultatively mobileg
Life habit: infaunalg
Diet: deposit feederg
Vision: blindc
Comments: LIFE HISTORY: IS, MA, UN, DS according to Todd (2001).g
Created: 2009-09-09 13:34:37
Modified: 2009-09-09 15:34:37
Source: g = genus, f = family, c = class
References: Sanchez Roig 1926, Aberhan et al. 2004, Kiessling 2004

Age range

Maximum range based only on fossils: base of the Selandian to the top of the Holocene or 61.60000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 56.0 Ma

Collections (230 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Danian - Thanetian66.0 - 56.0Russian Federation A. opressa, A. optata (49981)
Paleocene66.0 - 56.0Russian Federation A. napanensis, A. opressa, A. optata (50125)
Paleocene66.0 - 56.0USA (California) Semele packardi (11121) Tellina packardi (190795 190798)
Selandian - Thanetian61.6 - 56.0New Zealand A. sp. (64704)
Ypresian56.0 - 47.8USA (California) Tellina joaquinensis (52420) Tellina joaquinensis, Tellina longa (52426) Tellina longa (52424 52427 52428 52430 52431 52433)
Ypresian56.0 - 47.8USA (Oregon) Tellina jollaensis (200796 200873)
Eocene56.0 - 33.9USA (California) Tellina castacana (207112) Tellina longa (91476 190801)
Lutetian47.8 - 41.3USA (Oregon) Tellina joaquinensis (200892 200911)
Lutetian47.8 - 41.3USA (California) Tellina castacana (16712 200718 200743 200745 200749 200754 200766 202094) Tellina joaquinensis (210286 210289 210290 210292) Tellina joaquinensis, Tellina domenginensis (210283 210285 210287) Tellina jollaensis (122659 200733 200734) Tellina scrippsensis, Tellina vorbei (200720)
Lutetian - Bartonian47.8 - 38.0Russian Federation A. maxima (50051)
Early/Lower Uintan46.2 - 39.7USA (California) Tellina castacana (200756)
Bartonian41.3 - 38.0USA (California) Tellina castacana (52828) Tellina jollaensis (52805) Tellina longa (122295) Tellina longa, Tellina castacana, Tellina jollaensis (52817)
Bartonian41.3 - 38.0USA (Oregon) Tellina castacana (200858 200859 200860 201047) Tellina jollaensis (200861)
Bartonian41.3 - 38.0France A. pelliculus (177068) Tellina pellucida (78567)
Bartonian41.3 - 38.0USA (Alabama) Tellina entaenia (205489) Tellina plana, Tellina prolenta, Tellina entaenia (90600)
Bartonian41.3 - 38.0USA (Washington) Tellina longa (207129)
Late/Upper Eocene37.2 - 33.9Panama Tellina sp. (42537)
Late/Upper Eocene37.2 - 33.9Japan A. sp. (70920)
Early/Lower Oligocene33.9 - 28.4Puerto Rico Tellina disparoides (80192 80194)
Early/Lower Oligocene33.9 - 28.4Japan A. maximus (70774 70811 70812 70893 70895 70896)