PBDB Taxon

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

Bairdia crassa

Ostracoda - Podocopida - Bairdiidae

Taxonomy

Bairdia crassa was named by Harlton (1929).

Sister species lacking formal opinion data

B. africana, B. altifrons, B. anomala, B. antamputata, B. auricula, B. austriaca, B. billjohnsoni, B. birinae, B. bradfieldi, B. cassiana, B. ciscoensis, B. colonensis, B. condylus, B. confragosaeformis, B. crebra, B. croneisi, B. croskeina, B. cultrijugati, B. dissortis, B. dolicha, B. egorovi, B. eleziana, B. eleziana, B. exoura, B. fabaeformis, B. fusca, B. gibbosa, B. gosportensis, B. haworthi, B. hilda, B. hisingeriformis, B. hispida, B. hiwannensis, B. hondurasensis, B. isoscelata, B. kaschewarovae, B. kawakensis, B. kelleri, B. kinderhookensis, B. knuepferi, B. legumen, B. longisetosa, B. manifesta, B. meishanensis, B. moorei, B. mucronata, B. multihilosa, B. nitida, B. oklahomensis, B. opisthorhadina, B. paraproba, B. peneovoidea, B. philippovae, B. pinnula, B. proxischimensis, B. psiegorkiensis, B. rectifrontis, B. singularis, B. soldadensis, B. subcitriformis, B. subeleziana, B. subvexa, B. summa, B. turgida, B. urodeliformis, B. virga, B. feliumgibba, B. pompillioides, B. gliberti

Synonymy list

Year	Name and author
1929	Bairdia crassa Harlton
1987	Bairdia crassa Shi and Chen p. 36 figs. Pl 1, figs 8-12

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Ecdysozoa	Aguinaldo et al. 1997
—	Panarthropoda
phylum	Arthropoda	Gravenhorst 1843
—	Deuteropoda
—	Mandibulata
—	Pancrustacea	Zrzavý and Štys 1997

Rank	Name	Author
—	Hymenostraca	(Rolfe 1969)
superclass	Oligostraca	Zrzavý et al. 1997
class	Ostracoda
subclass	Podocopa	Sars 1865
order	Podocopida	Sars 1866
suborder	Bairdiocopina	Grundel 1967
superfamily	Bairdioidea	(Sars 1888)
family	Bairdiidae	Sars 1888
genus	Bairdia
species	crassa	Harlton 1929

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.

†Bairdia crassa Harlton 1929

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Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
carapace height	6	0.426	0.260	0.620	0.420	0.123
shell height	1	0.370	-	-	-	-
valve height	2	0.665	0.650	0.680	0.665	0.021

Composition:

low Mg calcitec

Environment:

hypersaline, marine, brackish, freshwaterc

Locomotion:

actively mobilec

Life habit:

epifaunalo

Diet:

detritivoreo

Diet 2:

grazero

Vision:

limitedc

Created:

2010-02-05 02:00:00

Modified:

2010-02-23 23:16:56

Source: o = order, c = class

References: Kiessling 2004, Jell and Adrain 2002

Age range: base of the Kasimovian to the top of the Changhsingian or 307.00000 to 251.90200 Ma

Collections (27 total)

Time interval	Ma	Country or state	Original ID and collection number
Kasimovian	307.0 - 303.7	USA (Kansas)	Bairdia crassa (132992)
Gzhelian	303.7 - 298.9	USA (Kansas)	Bairdia crassa (132989)
Artinskian	290.1 - 283.3	China (Fujian)	Bairdia crassa (95699 95702)
Kungurian	283.3 - 274.4	Guatemala	Bairdia crassa (155568 155572 155573)
Kungurian	283.3 - 274.4	China (Fujian)	Bairdia crassa (95705 95706 95709 95710)
Changhsingian	254.14 - 251.902	China (Fujian)	Bairdia crassa (121202 121228 121230 121289 121291)
Changhsingian	254.14 - 251.902	China (Zhejiang)	Bairdia crassa (117576 117580 117589 117592 117595 117597 117601 117621 117625 117649)
Changhsingian	254.14 - 251.902	China (Xizang)	Bairdia crassa (106661)