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Icriocarcinus
Taxonomy
Icriocarcinus was named by Bishop (1988) [Sepkoski's age data: K Camp-u , K Maes-l]. Its type is Icriocarcinus xestos.
It was assigned to Carcineretidae by Bishop (1988); to Decapoda by Sepkoski (2002); to Goneplacidae by Schweitzer et al. (2002), Karasawa and Schweitzer (2006), Schweitzer et al. (2010); to Icriocarcininae by Luque et al. (2017); and to Lithophylacidae by Schweitzer et al. (2021).
It was assigned to Carcineretidae by Bishop (1988); to Decapoda by Sepkoski (2002); to Goneplacidae by Schweitzer et al. (2002), Karasawa and Schweitzer (2006), Schweitzer et al. (2010); to Icriocarcininae by Luque et al. (2017); and to Lithophylacidae by Schweitzer et al. (2021).
Species
I. xestos (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1988 | Icriocarcinus Bishop p. 247 |
| 2002 | Icriocarcinus Schweitzer et al. p. 21 |
| 2002 | Icriocarcinus Sepkoski |
| 2006 | Icriocarcinus Karasawa and Schweitzer p. 57 |
| 2010 | Icriocarcinus Schweitzer et al. p. 135 |
| 2017 | Icriocarcinus Luque et al. p. 44 |
| 2021 | Icriocarcinus Schweitzer et al. p. 18 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. A. Bishop 1988 | Carapace pentagonal, twice as wide as long, well differentiated by
grooves into smooth, plateau-like areolations. Rostrum very narrow, downtumed, not grooved, rounded at tip. Anterolateral margin with two small orbital spines plus large spine at widest point Vy distance from front. Orbits large, eyestalk long and slender. Posterolateral margins straight and steep. Posterior margin slightly concave. Areolations on carapace raised into plateaus, small transverse ridge on protogastric region even with distal ends of cervical groove. Anterior portion of epibranchial lobe developed as a narrow, distal ridge behind cervical groove. Cardiac region bilobed, decreasing in relief posteriorly until merging with intestinal region. Chelipeds long, arched upward, keeled and slightly heterochelous. Walking legs long, P. oval, P3-P5 flattened, P5 smallest with straight dactylus. |
Measurements
No measurements are available
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| Source: superf = superfamily, o = order, c = class | |||||
| References: Turnsek 1997, Aberhan 1992, Fearon and Clapham 2023 | |||||
Age range: base of the Middle Campanian to the top of the Late/Upper Campanian or 83.60000 to 72.20000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | USA (California) | I. xestos (99312) | |
| Campanian - Maastrichtian | Mexico (Baja California) | I. xestos (45700) | |
| Middle Campanian - Late/Upper Maastrichtian | Mexico (Baja California) | I. xestos (133568) |