Echinocaridina

Fossil specimen of Paraechinocaris punctata, from the Digital Atlas of Ancient Life.

Belongs within: Archaeostraca.

The Echinocaridina are a group of phyllocarid crustaceans known from the Silurian (or possibly the Ordovician) to the early Carboniferous (Briggs et al. 1993).

Characters (from Rode & Lieberman 2002): Carapace subovate to subquadrate; anterior horn rounded or absent; posterior margin sinuous or convex. Rostrum free or absent, lacking longitudinal ridge. Carapace divided into anterior and posterior regions by distinct groove; one to five raised nodes present in anterior region. Marginal groove present on carapace and demarcating marginal rim.

EchinocaridinaRL02
|--Aristozoe Barrande 1872FGS04 [AristozoidaeRL02]
| |--A. memoranda Barrande 1872RL02 [incl. *A. amica Barrande 1868BB61]
| |--A. parabolicaO68
| `--A. porculaBWW93
|--PtychocarididaeRL02
| |--Kerfornecaris Racheboeuf & Rolfe 1990RL02
| | `--K. roscanvelensis Racheboeuf & Rolfe 1990RL02
| `--Ptychocaris Novák 1885RL02
| `--P. novaki Copeland 1960RL02
`--EchinocarididaeRL02
|--MontecaridinaeRL02
| |--Eleutherocaris whitfieldi (Clarke 1885)RL02
| `--MontecarisRL02
| |--M. antecedens Chlupáč 1960BWW93
| |--M. lehmannii Jux 1960RL02
| `--M. strunensis Jux 1960RL02
`--EchinocaridinaeRL02
|--Paraechinocaris Rode & Lieberman 2002RL02
| |--*P. punctata (Hall 1863) (see below for synonymy)RL02
| |--P. asiatica (Reed 1908) [=Echinocaris asiatica]RL02
| `--P. spiniger (Racheboeuf 1998) [=Echinocaris spiniger]RL02
`--Echinocaris Whitfield 1880FGS04
|--*E. sublaevis Whitfield 1880 (see below for synonymy)RL02
|--E. auricula Eller 1935RL02
|--E. beecheri Copeland 1960RL02
|--E. castorensis Copeland 1960RL02
|--E. clarkii Beecher 1902RL02
|--E. condylepis Hall & Clarke 1988RL02
|--E. consanguina Eller 1935RL02
|--E. crosbyensis Eller 1937RL02
|--E. hunanensis Han & Zhou 1993RL02
|--E. multinodosa Whitfield 1880RL02
|--E. multispinosis Feldmann & McKenzie 1981RL02
|--E. ohioensis Sturgeon, Hlavin & Kesling 1964RL02
|--E. randallii Beecher 1902RL02
|--E. sloliensis Partridge 1902RL02
|--E. socialis Beecher 1884RL02
|--E. turgida Eller 1935RL02
`--E. whidbornei (Jones & Woodward 1889)RL02

Echinocaris sublaevis Whitfield 1880 [incl. E. pulcra Sturgeon, Hlavin & Kesling 1964, E. pustulosa Whitfield 1880]RL02

Paraechinocaris punctata (Hall 1863) [=Ceratiocaris punctatus, Echinocaris punctata, Echinocaris punctatus; incl. Ceratiocaris armatus Hall 1863]RL02

*Type species of generic name indicated

References

[BB61] Benson, R. H., J. M. Berdan, W. A. van den Bold, T. Hanai, I. Hessland, H. V. Howe, R. V. Kesling, S. A. Levinson, R. A. Reyment, R. C. Moore, H. W. Scott, R. H. Shaver, I. G. Sohn, L. E. Stover, F. M. Swain & P. C. Sylvester-Bradley. 1961. Systematic descriptions. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt Q. Arthropoda 3: Crustacea: Ostracoda pp. Q99–Q421. Geological Society of America and University of Kansas Press.

[BWW93] Briggs, D. E. G., M. J. Weedon & M. A. Whyte. 1993. Arthropoda (Crustacea excluding Ostracoda). In: Benton, M. J. (ed.) The Fossil Record 2 pp. 321–342. Chapman & Hall: London.

[FGS04] Feldmann, R. M., A. A. Garassino & C. E. Schweitzer. 2004. The presumed decapod, Palaeopemphix Gemmellaro, 1890, is a unique member of the Phyllocarida (Palaeopemphicida: Palaeopemphidae). Journal of Palaeontology 78: 340–348.

[O68] Öpik, A. A. 1968. Ordian (Cambrian) Crustacea Bradoriida of Australia. Commonwealth of Australia, Bureau of National Development, Bureau of Mineral Resources, Geology and Geophysics, Bulletin 103: 1–45.

[RL02] Rode, A. L., & B. S. Lieberman. 2002. Phylogenetic and biogeographic analysis of Devonian phyllocarid crustaceans. Journal of Paleontology 76 (2): 271–286.

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