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Inoceramus pacificus

Bivalvia - Myalinida - Inoceramidae

Taxonomy
Inoceramus pacificus was named by Anderson and Hanna (1935). Its type specimen is CAS 4266 and is a 3D body fossil. Its type locality is O32/f8025 [Okarahia Sandstone], which is in a Piripauan coastal sandstone in the Okarahia Sandstone Formation of New Zealand.

Sister species lacking formal opinion data
I. agdjakendensis, I. anakusensis, I. angulatus, I. angustiundulatus, I. annulatus, I. aucella, I. australis, I. balchii, I. barsliensis, I. bererensis, I. bicorrugatus, I. bojarkensis, I. borilensis, I. cadottensis, I. comancheanus, I. conicus, I. crippsi, I. crispi, I. curvieri, I. digitatus, I. etheridgei, I. ewaldi, I. ezoensis, I. fiegei, I. flavus, I. gusselkaensis, I. heinzi, I. hobetsensis, I. incertus, I. incurvus, I. ipuanus, I. irenensis, I. japonicus, I. kapuus, I. labiatiformis, I. labiatoidiformis, I. lapparenti, I. longealatus, I. maedae, I. mamatensis, I. marathonensis, I. matotorus, I. nodai, I. nukeus, I. obtusus, I. opetius, I. pedalionoides, I. pennatulus, I. perplexus, I. pertenuis, I. pochialaineni, I. proximus, I. pseudoregularis, I. quadrans, I. quatsinoensis, I. reduncus, I. renngarteni, I. richensis, I. rutherfordi, I. sagensis, I. saratoviensis, I. schloenbachi, I. schoendorfi, I. spitzbergensis, I. stilley, I. stoneleyi, I. subneocomiensis, I. subpercostatus, I. subundantus, I. sutherlandi, I. tenuis, I. tenuistriatus, I. tenuistriatus(), I. tenuiumbonatus, I. teshioensis, I. typicus, I. urius, I. vancouverensis, I. vanuxemi, I. vanuxemiformis, I. virgatus, I. volgensis, I. waltersdorfensis, I. wandereri, I. warakius, I. yokoyamai, I. zavoljiensis, I. concentrica, I. goldfussi, I. tenuilineatum, I. crippsi, I. hobetsensis, I. iburiensis, I. soukupi, I. incertus, I. ezoensis, I. japonicus, I. rhomboides, I. bornholmensis, I. guerichi, I. steenstrupi

Synonymy list
YearName and author
1935Inoceramus pacificus Anderson and Hanna p. 29 figs. Plate 10, figure 4

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
Eubivalvia
subclassAutobranchia(Groblen 1894)
RankNameAuthor
infraclassPteriomorphia(Beurlen 1944)
OstreomorphiFerussac 1822
OstreioniFerussac 1822
MyalinataPaul 1939
orderMyalinidaPaul 1939
superfamilyInoceramoideaGiebel 1852
familyInoceramidaeGiebel 1852
genusInoceramusSowerby 1814
speciespacificus

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.

Inoceramus pacificus Anderson and Hanna 1935
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Diagnosis
ReferenceDiagnosis
F. M. Anderson and G. D. Hanna 1935Shell large, subquadrate, elongate, beaks almost terminal, strongly incurved; hinge margin extended, straight, elevated behind; anterior end abrupt, slightly round ed below; basal margin broadly rounded in outline ; surface bearing strong concentric undulations on the upper half, becoming obsolete below. Length of holotype, 142 mm.; height 88 mm.; thickness 70 mm. (estimated).
Measurements
No measurements are available
Composition: low Mg calcitef
Locomotion: facultatively mobileg
Life habit: epifaunalg
Diet: suspension feederg
Vision: blindc
Created: 2009-04-13 11:12:15
Modified: 2009-04-13 13:12:15
Source: g = genus, f = family, c = class
References: Aberhan et al. 2004, Hendy et al. 2009, Kiessling 2003

Age range: base of the Middle Coniacian to the top of the Early/Lower Maastrichtian or 89.30000 to 66.00000 Ma

Collections (27 total)


Time interval Ma Country or state Original ID and collection number
Turonian - Santonian93.9 - 83.6New Zealand Inoceramus pacificus (83452)
Middle Coniacian89.3 - 85.8Madagascar Inoceramus pacificus (46615)
Piripauan85.8 - 83.5New Zealand Inoceramus pacificus (37326 37330 78363 78364 78365 78366 78369 78370 78371 78373 78374 78400 83441 83515 83516 83517 83518 83521 83523 83524 type locality: 83525)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0Mexico (Baja California) Inoceramus pacificus (200117)
Maastrichtian72.1 - 66.0Mexico Inoceramus pacificus (1372)
Early/Lower Maastrichtian70.6 - 66.0USA (California) Inoceramus pacificus (66683 224893)