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Pachecoa

Bivalvia - Arcida - Arcidae

Taxonomy
Pachecoa was named by Harris (1919) [Sepkoski's age data: T Eo-l T Eo-u Sepkoski's reference number: 700]. It is not extant.

It was assigned to Trinacriinae by Vokes (1980) and Moore (1983); and to Arcoida by Sepkoski (2002).

Synonymy list
YearName and author
1919Pachecoa Harris
1980Pachecoa Vokes p. 18
1983Pachecoa Moore p. A48
2002Pachecoa Sepkoski

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
Eubivalvia
subclassAutobranchia(Groblen 1894)
RankNameAuthor
infraclassPteriomorphia(Beurlen 1944)
OstreomorphiFerussac 1822
ArcioniGray 1854
orderArcida(Stoliczka 1871)
superfamilyArcoidea(Lamarck 1809)
familyArcidaeLamarck 1809
subfamilyNoetiinaeStewart 1930
tribeTrinacriini(MacNeil 1937)
genusPachecoaHarris 1919

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. †Pachecoa Harris 1919
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Pachecoa (Pachecoa) hornii elusa Clark and Woodford 1927
Subg. †Pachecoa (Stenzelia) MacNeil 1954
Pachecoa hornii Gabb 1864
Pachecoa pulcra Gabb 1860
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Pachecoa sabinica Harris 1919
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitef
Entire body: yesf
Adult length: 10 to < 100f
Adult width: 10 to < 100f
Adult height: 10 to < 100f
Thickness: intermediatef
Folds: minorf
Ribbing: majorf
Spines: nonef
Internal reinforcement: nonef
Ontogeny: accretionf
Environment: lagoonal, coastal, inner shelf, outer shelf, oceanic, brackish, freshwaterf
Locomotion: facultatively mobilef
Attached: yesf
Life habit: epifaunalf
Diet: suspension feederf
Vision: limitedf
Created: 2008-11-18 16:46:55
Modified: 2010-02-18 01:07:43
Source: f = family
Reference: Mikkelsen and Bieler 2008

Age range: base of the Early/Lower Eocene to the top of the Bartonian or 55.80000 to 38.00000 Ma

Collections (140 total)


Time interval Ma Country or state Original ID and collection number
Ypresian56.0 - 47.8USA (California) Arca hornii (52426 52428 52429 52430 52434 122294 122337)
Ypresian56.0 - 47.8USA (Texas) P. concentrica (7788 7789 83950) P. microcancellata (91844) P. ovalis (89949) P. pulchra (98709 98746)
Ypresian56.0 - 47.8USA (Alabama) P. microcancellata (90609 92375)
Ypresian - Lutetian56.0 - 41.3USA (Alabama) P. catonis (83757 83802 90602) P. catonis, P. sp. (83804)
Ypresian - Bartonian56.0 - 38.0USA (Texas) P. pulchra (98838 99029)
Eocene56.0 - 33.9USA (California) Arca hornii (207112)
Early/Lower Eocene - Middle Eocene55.8 - 37.2USA (Texas) P. pulchra (91106)
Lutetian47.8 - 41.3USA (California) P. hornii (200737 200754 200763 200764 200766)
Lutetian47.8 - 41.3USA (Virginia) P. sp., P. decisa, P. ellipsis (1445 1446 1447 1448)
Lutetian47.8 - 41.3USA (South Carolina) P. sp. (52344)
Lutetian47.8 - 41.3USA (Alabama) P. decisa (1436 1437 1438 1439 1442 1443 1444) P. declivis (81211 81258) P. ellipsis (81254) P. lisbonensis (81238) P. ovalis, P. declivis (81253) P. pulchra, P. declivis, P. ellipsis (81224) P. sp. (1441) P. sp., P. decisa (1440) P. sp., P. decisa, P. declivis (1435)
Lutetian47.8 - 41.3USA (Texas) P. adamsi (90888) P. concentrica (205520 205521 205533) P. pulchra (92226 98839) P. pulchra, P. smithvillensis (90455) P. smithvillensis (205442 205496 205527 205532 205544) P. sp. (205436 205440 205454) P. sp., P. smithvillensis (205503)
Lutetian47.8 - 41.3USA (Oregon) Halonanus hornii (201035)
Lutetian47.8 - 41.3USA (Mississippi) P. catonis (2414) P. declivis (99673)
Lutetian - Bartonian47.8 - 38.0USA (Louisiana) P. pulchra (90470)
Lutetian - Bartonian47.8 - 38.0USA (Alabama) P. declivis (205439) P. declivis, P. pulchra (205420) P. sp., P. pulchra (205490)
Lutetian - Bartonian47.8 - 38.0USA (Texas) P. pulchra (41439 41441) P. pulchra, P. sabinica (41426 41436 41443) P. sabinica (2412 2413 41433)
Bartonian41.3 - 38.0USA (South Carolina) P. ellipsis, P. ledoides, Trinacria decisa, P. decisa (92308) P. ledoides, Trinacria decisa (92355) P. pulchra (92378) Trigonarca decisa (92487)
Bartonian41.3 - 38.0USA (Texas) P. decisa (90886 91839 98729 99035 205267 205480 205481 205531) P. decisca, P. pulchra (205430) P. ellipsis (205429) P. ovalis, P. sp., P. decisa (205483) P. pulchra (90656 91797 91838 91895 92208 98868 99027 205410) P. pulchra, P. sabinica (41427) P. sabinica (7437 7439 99039) P. sabinica, P. pulchra (7438) P. sp. (205433 205515) P. sp., P. pulchra (205414 205415 205485) P. sp., P. sabinica, P. ellipsis, P. pulchra (205422)
Bartonian41.3 - 38.0USA (California) Halonanus horni (52803 52827)
Bartonian41.3 - 38.0USA (Louisiana) P. decisa (92272 92356) P. ellipsis (98771) P. pulchra (98769)
Bartonian41.3 - 38.0USA (Alabama) P. ellipsis, P. ledoides, P. pectuncularis, P. decisa, P. perplana (90600) P. lisbonensis, P. declivis, P. ellipsis, P. decisa (90469) P. ovalis (205489) P. ovalis, P. declivis, P. decisa (98355) P. perplana (205438) P. pulchra (2453 2454) P. sp. (2416 2417 2418 2419 2420 2421 2422 2443 6788)
Bartonian41.3 - 38.0USA (Mississippi) P. declivis (90709) P. pulchra (2451)
Bartonian41.3 - 38.0USA (Arkansas) P. corvamnis (99180)