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Paralithodes bishuensis
Taxonomy
Paralithodes bishuensis was named by Karasawa et al. (2017). It is extant. Its type specimen is MFM83077, an exoskeleton. Its type locality is Ozagahama Cliff, which is in a Miocene marine mudstone in the Toyohama Formation of Japan.
Synonymy list
| Year | Name and author |
|---|---|
| 2017 | Paralithodes bishuensis Karasawa et al. p. 50 figs. Pl. 12, figs. 1–3 |
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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.
Paralithodes bishuensis Karasawa et al. 2017
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. Karasawa et al. 2017 | Juvenile lithodid. Carapace excluding rostrum pyriform, slightly longer than wide, widest at posterior third. Fronto-orbital regions about 1/3 as long as maximum carapace width. Lateral margin sinuous, divergent posteriorly, with short anterolateral spine directed anterolaterally. Posterior margin gently concave, tuberculate, rimmed. Dorsal carapace covered with pointed tubercles; gastric region with tubercles; hepatic region with 2 tubercles transversely arranged; cardiac and intestinal regions with 2 axial rows of tubercles; branchial region with 4 oblique rows of tubercles. Cervical groove weakly defined. Pereiopod 1 chelate; basi-ischium with mesio-distal spine; merus with long, mesio-medial spine; propodus with sparsely arranged spines dorsally and ventrally. Pereiopod 2 basi-ischium with distal spine on flexor margin; merus with small spines on extensor margin. Merus of pereiopod 3 slightly longer than that of pereiopod 2; extensor margin with 3 long spines. Merus of pereiopod 4 shorter than those of pereiopods 2 and 3; extensor margin with 6 long, irregular-sized spines. Article 2 of antennae with sharp distal spines. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan 1992, Turnsek 1997 | |||||
Age range: Early/Lower Miocene or 23.03000 to 15.97000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Miocene | Japan (Aichi) | Paralithodes bishuensis (type locality: 219250) |