-
Extinct in the wild (EW): 2
species Critically endangered (CR): 393
species Endangered (EN): 626
species Vulnerable (VU): 1,081
species Near...
- Carboniferous, as are the
first true
mantis shrimp. In the Decapoda,
prawns and
polychelids appear in the Tri****ic, and
shrimp and
crabs appear in the Jur****ic....
- made the
Polychelidae something of a
living fossil. The
reason that
polychelids remained unknown for so long is that they live on the sea-floor, often...
- of
polychelid crustacean from the Late Tri****ic. It is the only
species in the
family Tetrachelidae. It is
distinguished from most
other polychelids, including...
-
Acanthephyridae (10%) and
Aristeidae (4%).
Considerably small amounts of
polychelids and
sergestids were
registered at
abyssal depths (as they were all predominant...
- MUSORSTOM. 21 (184): 285–387.
Shane T.
Ahyong & Tin-Yam Chan (2004). "
Polychelid lobsters of
Taiwan (Decapoda: Polychelidae)" (PDF).
Raffles Bulletin of...
- Charbonnier,
Sylvain (2022-12-28). "Teruzzicheles popeyei, an
early Sinemurian polychelid lobster from the
Osteno Lagerstätte (Italy)".
Neues Jahrbuch für Geologie...
- S2CID 129330859. Günter Schweigert;
Werner Ernst (2012). "First
record of a
polychelid lobster (Crustacea: Decapoda: Coleiidae) from the
Sinemurian (Early Jur****ic)...
-
matching the
colour of the
pleon where they are brooded. As in
other polychelids, and as
implied by the
generic names Polycheles and Pentacheles, all...
- nov
Schweitzer &
Feldmann Oligocene Makah Formation US Washington A
Polychelid benthic crustacean sp. of
uncertain generic affinity.
Secretanella Gen...
