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Phylum of tiny marine invertebrates
Loricifera
Temporal range: Middle Cambrian–Recent[1]
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
(total group)
Pliciloricus enigmaticus
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Subkingdom:
Eumetazoa
Clade:
ParaHoxozoa
Clade:
Bilateria
Clade:
Nephrozoa
(unranked):
Protostomia
Superphylum:
Ecdysozoa
Phylum:
Loricifera Kristensen, 1983[2]
Families
Nanaloricidae
Pliciloricidae
Urnaloricidae
Loricifera (from Latin, lorica, corselet (armour) + ferre, to bear) is a phylum of very small to microscopic marine cycloneuralian sediment-dwelling animals with 43 described species.[3] and approximately 100 more that have been collected and not yet described.[4] Their sizes range from 100 μm to ca.1 mm.[5]
They are characterised by a protective outer case called a lorica and their habitat is in the spaces between marine gravel to which they attach themselves. The phylum was discovered in 1983 by R.M. Kristensen, near Roscoff, France.[6] They are among the most recently discovered groups of animals.[7] They attach themselves quite firmly to the substrate, and hence remained undiscovered for so long.[8] The first specimen was collected in the 1970s, and described in 1983.[7] They are found at all depths, in different sediment types, and in all latitudes.[8]
^Cite error: The named reference Peel-Stein-Kristensen-2013 was invoked but never defined (see the help page).
^Cite error: The named reference Kristensen-1983 was invoked but never defined (see the help page).
^Cite error: The named reference Neves-Kirstensen-Møbjerg-2021 was invoked but never defined (see the help page).
^Cite error: The named reference Gad-2005 was invoked but never defined (see the help page).
^Cite error: The named reference Heiner-2005 was invoked but never defined (see the help page).
^Cite error: The named reference Heiner-Kristensen-2005 was invoked but never defined (see the help page).
^ abCite error: The named reference Kristensen-2002 was invoked but never defined (see the help page).
^ abCite error: The named reference Ruppert-Fox-Barnes-2004 was invoked but never defined (see the help page).
Loricifera (from Latin, lorica, corselet (armour) + ferre, to bear) is a phylum of very small to microscopic marine cycloneuralian sediment-dwelling animals...
phyla: Arthropoda, Onychophora, Tardigrada, Kinorhyncha, Priapulida, Loricifera, Nematoda, and Nematomorpha. A few other groups, such as the gastrotrichs...
parasites. Smaller phyla related to them are the Kinorhyncha, Priapulida, and Loricifera. These groups have a reduced coelom, called a pseudocoelom. Other invertebrates...
noted for the discovery of three new phyla of microscopic animals: the Loricifera in 1983, the Cycliophora in 1995, and the Micrognathozoa in 2000. He is...
Nematomorpha or horsehair worms, and the Kinorhyncha, Priapulida, and Loricifera. These groups have a reduced coelom, called a pseudocoelom. The Spiralia...
grounds to unite three phyla: the Kinorhyncha, the Priapulida and the Loricifera. The three phyla have four characters in common — chitinous cuticle that...
include three species of Loricifera (< 1 mm in size) and the 10-cell Henneguya zschokkei. In 2010 three species of anaerobic loricifera were discovered in the...
possess it. Among Ecdysozoa, their nearest relatives are Kinorhyncha and Loricifera, with which they constitute the Scalidophora clade named after the spines...
Molecular Data on the Phylum Loricifera – An Investigation into the Phylogeny of Ecdysozoa with Emphasis on the Positions of Loricifera and Priapulida". Zoological...
rotifers are also too small to be recognised with the naked eye, as are many loricifera, including the recently discovered anaerobic species that spend their...
hydrogenosomes). Hydrogenosomes, mitosomes, and related organelles as found in some loricifera (e. g. Spinoloricus) and myxozoa (e. g. Henneguya zschokkei) are together...
the first new phylum of multicelled organism to be discovered since the Loricifera in 1983. Symbion was discovered in 1995 by Reinhardt Kristensen and Peter...
the animals show a resemblance to adult kinorhyncha and some species of Loricifera and Priapulida, all members of the group Scalidophora. The earliest Nematomorph...
The Vinctiplicata is a clade of Scalidophora uniting the Loricifera and the Priapulida, and representing the sister group to the Kinorhyncha. Its monophyly...
(founded by W. Kükenthal). Vol. 1, Nematomorpha, Priapulida, Kinorhyncha, Loricifera. Berlin, Boston: de Gruyter. Cobb NA (1919). "The orders and classes of...
snout Mud dragons Eleven segments, each with a dorsal plate approx. 150 Loricifera Armour bearer Brush heads Umbrella-like scales at each end approx. 122...
Spinoloricus cinziae is an animal species described in 2014 in the phylum Loricifera. It was the first described animal species that does not require oxygen...
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