Nitotacarcinus lutarius (Schweitzer & Feldmann, 2011)

Description: Carapace rectangular, slightly wider than long, widest a little before midlength; four small anterolateral spines excluding the outer orbital spines, orbits with short inner orbital spine and two(?) fissures on upper margin; grooves and lobes well defined. Nitotacarcinus lutarius could be mistaken for a juvenile Cyclocorystes pulchellus.

(Description from: A guide to the fossil Decapoda (Crustacea: Axiidea, Anomura, Brachyura) of the British Isles)

Kingdom: Animalia

Phylum: Arthropoda

Subphylum: Crustacea

Superclass: Multicrustacea

Class: Malacostraca

Subclass: Eumalacostraca

Superorder: Eucarida

Order: Decapoda

Suborder: Pleocyemata

Infraorder: Brachyura

Section: Eubrachyura

Subsection: Heterotremata

Superfamily: Carpilioidea (Closest living relative)

Family: Tumidocarcinidae

Genus: Nitotacarcinus

Species: Nitotacarcinus lutarius

Locality: Tankerton

Image from Martin Rayner

Acknowledgments:

Thank you very much Martin Rayner for allowing usage of the images on this page.

References:

https://www.sciencedirect.com/science/article/pii/S0016787819301191#fig0020

https://www.researchgate.net/figure/Nitotacarcinus-lutarius-new-species-1-2-4-BMNH-In-36135-holotype-dorsal-surface_fig3_267216457

https://www.marinespecies.org/aphia.php?p=taxdetails&id=1618940

https://www.city.mizunami.lg.jp/_res/projects/default_project/_page_/001/002/289/2014092922803_bull37_01.pdf

https://www.mbfossilcrabs.com/Carpilioidea.html

Papers:

Joe S.H. Collins, Claire J.T. Mellish, Andrew J. Ross, Phillip R. Crabb, Stephen K. Donovan (2020), A guide to the fossil Decapoda (Crustacea: Axiidea, Anomura, Brachyura) of the British Isles
Carrie E. Schweitzer and Rodney M. Feldmann (2011), New fossil Brachyura (Decapoda: Homoloidea, Dorippoidea, Carpilioidea) from the United Kingdom

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