PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Inoceramus chicoensis

Bivalvia - Myalinida - Inoceramidae

Taxonomy

Inoceramus chicoensis was named by Anderson (1958).

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. etheridgei, I. ewaldi, I. fiegei, I. flavus, I. gusselkaensis, I. heinzi, I. incurvus, I. ipuanus, I. irenensis, I. kapuus, I. labiatiformis, I. labiatoidiformis, I. lapparenti, I. maedae, I. mamatensis, I. marathonensis, I. matotorus, I. nodai, I. nukeus, I. obtusus, I. opetius, I. pedalionoides, 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. sutherlandi, I. tenuis, I. tenuistriatus, I. tenuistriatus(), I. tenuiumbonatus, I. typicus, I. urius, I. vanuxemi, I. vanuxemiformis, I. volgensis, I. waltersdorfensis, I. wandereri, I. warakius, I. yokoyamai, I. zavoljiensis, I. concentrica, I. goldfussi, I. tenuilineatum, I. crippsi, I. iburiensis, I. soukupi, I. rhomboides, I. bornholmensis, I. guerichi, I. steenstrupi

Synonymy list

Year	Name and author
1958	Inoceramus chicoensis Anderson p. 103 figs. Plate 55, figures 1, 2

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Bivalvia
—	Eubivalvia
subclass	Autobranchia	(Groblen 1894)

Rank	Name	Author
infraclass	Pteriomorphia	(Beurlen 1944)
—	Ostreomorphi	Ferussac 1822
—	Ostreioni	Ferussac 1822
—	Myalinata	Paul 1939
order	Myalinida	Paul 1939
superfamily	Inoceramoidea	Giebel 1852
family	Inoceramidae	Giebel 1852
genus	Inoceramus	Sowerby 1814
species	chicoensis

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 chicoensis Anderson 1958

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Diagnosis

Reference	Diagnosis
F. M. Anderson 1958	Shell large at maturity, subcircular in outline, equivalve, somewhat lenticular in form ; hinge line straight, beaks subterminal, small, forming the apex of an angle of about 95° or more between the hinge line and the anterior margin of the shell ; surface marked by con centric ridges, or undulations ; the spaces between the ridges widening rapidly with growth ; surface otherwise smooth.

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: Hendy et al. 2009, Kiessling 2003, Aberhan et al. 2004

Age range: base of the Coniacian to the top of the Campanian or 89.80000 to 72.10000 Ma

Collections (8 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Cretaceous	100.5 - 66.0	Canada (British Columbia)	Inoceramus chicoensis (88119)
Coniacian	89.8 - 86.3	USA (California)	Inoceramus chicoensis (44233)
Santonian	86.3 - 83.6	USA (California)	Inoceramus chicoensis (44279)
Late/Upper Santonian	85.8 - 83.5	Canada (British Columbia)	Inoceramus chicoensis (210544 210547 210550)
Campanian	83.6 - 72.1	USA (California)	Inoceramus chicoensis (185708)
Early/Lower Campanian	83.5 - 70.6	USA (California)	Inoceramus chicoensis (44277)