Genus: Marmornectes KETCHUM & BENSON, 2011
Etymology: Latin, marmor-, "marble, or the foaming surface of the sea" and Greek, nectes, "swimmer."

Species: candrewi KETCHUM & BENSON, 2011
Etymology: In honor of Chris Andrew who found the specimen and donated it to Beford Museum, UK in 1998.

Holotype: BEDFM 1999.201

Locality: From a drinage trench at the base of Quest Pit near Stewartby, Bedfordshire County, England, Southern United Kingdom.

Horizon:

Biostratigraphy: S. enodatum Subzone, Sigaloceras calloviense Zone.

Age: Lower Callovian Stage, Upper Dogger Epoch, Middle Jurassic.

Material: Partial lower jaw including the mandibular symphysis and left mandibular ramus, the right premaxilla and partial left premaxilla and right maxilla, four disarticulated teeth, partial left and right squamosals, unidentified cranial fragments, the atlas-axis comlex (excluding the axial intercentrum and neural arch), 13 cervical centra, 2 cervical neural arches, 14 dorsal centra (including two 'pectoral' centra), 2 dorasal neural arches, one sacral centrum, 8 caudal centra, 1 caudal neural arch, 6 cervical ribs, 10 comlpete dorsal ribs, 1 caudal rib and other vertebral and rib fragments, partial scapulae, partial coracoids, the left clavicle, humneri, ulnae, partial ilia, an ischium, femora, fibulate, tibiae, numerous carpals, tarsals and phalanges.