PBDB Taxon

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

Poseidonamicus

Ostracoda - Podocopida - Hemicytheridae

Taxonomy

Poseidonamicus was named by Benson (1972) [Sepkoski's age data: T Eo-l R]. It is extant. It was considered monophyletic by Hunt (2007).

It was assigned to Podocopida by Sepkoski (2002); and to Thaerocytherinae by Hunt (2007).

Species

P. dinglei, P. major, P. minor, P. miocenicus, P. norrisi, P. nudus, P. panopsus, P. pintoi, P. pseudorobustus, P. riograndensis, P. whatleyi

Species lacking formal opinion data

P. multipunctata

Synonymy list

Year	Name and author
1972	Poseidonamicus Benson pp. 1-138
2002	Poseidonamicus Sepkoski
2007	Poseidonamicus Hunt p. 607

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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
superfamily	Trachyleberidoidea	Liebau 2005
family	Hemicytheridae	(Puri 1953)
subfamily	Thaerocytherinae	(Hazel 1967)
genus	Poseidonamicus	Benson 1972

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. Poseidonamicus Benson 1972

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Poseidonamicus dinglei Boomer 1999

†Poseidonamicus major Benson 1972

Poseidonamicus minor Benson 1972

Poseidonamicus miocenicus Benson and Peypouquet 1983

†Poseidonamicus norrisi Yamaguchi et al. 2017

Poseidonamicus nudus Benson 1972

Poseidonamicus panopsus Whatley and Dingle 1989

Poseidonamicus pintoi Benson 1972

Poseidonamicus pseudorobustus Coles and Whatley 1989

Poseidonamicus riograndensis Benson and Peypouquet 1983

Poseidonamicus whatleyi Dingle 2003

Diagnosis

No diagnoses are available

Measurements

No measurements are available

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: Jell and Adrain 2002, Kiessling 2004

Age range

Maximum range based only on fossils: base of the NP15 to the top of the Holocene or 46.70000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 43.3 Ma

Collections (106 total)

Time interval	Ma	Country or state	Original ID and collection number
Eocene	56.0 - 33.9	South Pacific	P. spp. (259994)
Eocene - Oligocene	56.0 - 23.04	South Pacific	P. spp. (259990 259991 259992 259993)
NP15	46.7 - 43.3	South Pacific	P. spp. (258509)
M. lehneri PRZ	42.3 - 40.5	South Pacific	P. spp. (255315 255316 255317 255318 255320 255322)
Priabonian	37.71 - 33.9	South Pacific	P. spp. (259769 259770 259771)
Oligocene	33.9 - 23.04	South Pacific	P. spp. (259982 259983 259984 259985 259986 259987 259988 259989)
Oligocene - Miocene	33.9 - 5.333	South Pacific	P. spp. (259979 259980 259981)
Chattian	27.3 - 23.04	South Pacific	P. spp. (259766 259767 259768)
NN1	23.2 - 22.75	South Pacific	P. spp. (258506 258508)
Early/Lower Miocene	23.04 - 15.98	South Pacific	P. spp. (259761 259762 259763 259764 259765)
Miocene	23.04 - 5.333	South Pacific	P. spp. (259975 259976 259977 259978)
P. sicana LOSZ	16.38 - 16.27	South Pacific	P. spp. (255304)
P. sicana LOSZ - P. glomerosa LOSZ	16.38 - 15.1	South Pacific	P. spp. (255303)
P. glomerosa LOSZ - O. suturalis LOZ	16.27 - 14.24	South Pacific	P. spp. (255302)
Middle Miocene	15.98 - 11.63	South Pacific	P. spp. (259759 259760)
Middle Miocene - Late/Upper Miocene	15.98 - 5.333	South Pacific	P. spp. (256940)
F. robusta/F. fohsi CRSZ	13.13 - 11.79	South Pacific	P. spp. (255301)
Late/Upper Miocene	11.63 - 5.333	South Pacific	P. spp. (256936 256937 256938 256939 257936 257937 257938)
NN9	10.6 - 9.6	South Pacific	P. spp. (258504 258505)
Messinian - Zanclean	7.246 - 3.6	North Atlantic	P. major (201875) P. multipunctata, P. major (201900) P. sp., P. major (201874)
NN12	5.6 - 5.0	South Pacific	P. spp. (258494 258495 258496 258497 258498 258499 258500 258501 258502 258503)
NN12 - NN13	5.6 - 4.0	South Pacific	P. spp. (258491 258492 258493)
Pliocene	5.333 - 2.58	South Pacific	P. spp. (257918 257919 257920 257921 257922 257925 257926 257927 257928 257929 257931 257932 257933 257934)
Pliocene - Pleistocene	5.333 - 0.0117	South Pacific	P. spp. (256935 257916)
NN16	3.75 - 2.5	South Pacific	P. spp. (258487 258488 258489 258490)
Pleistocene	2.58 - 0.0117	South Pacific	P. spp. (256930 256931 256932 256933 256934 259973 259974)
NN19	1.9 - 0.42	South Pacific	P. spp. (258483 258484 258485 258486)
G. tosaensis HOSZ	1.88 - 0.61	South Pacific	P. spp. (255299 255300)
Holocene	0.0117 - 0.0	South Pacific	P. spp. (259972)