• Thumbnail for Leptocleididae
    Leptocleididae is a family of small-sized plesiosaurs that lived during the Early Cretaceous period (early Berriasian to early Albian stage). They had...
    4 KB (242 words) - 16:47, 18 June 2024
  • Thumbnail for Polycotylidae
    Polycotylidae is a family of plesiosaurs from the Cretaceous, a sister group to Leptocleididae. They are known as false pliosaurs. Polycotylids first appeared during...
    10 KB (590 words) - 18:32, 16 August 2024
  • Thumbnail for Leptocleidus
    Leptocleidus is an extinct genus of plesiosaur, belonging to the family Leptocleididae. It was a small plesiosaur, measuring only up to 3 m (9.8 ft). L. superstes...
    7 KB (493 words) - 15:01, 29 April 2024
  • Thumbnail for Umoonasaurus
    Umoonasaurus is an extinct genus of plesiosaur belonging to the family Leptocleididae. This genus lived approximately 115 million years ago during the Early...
    19 KB (2,043 words) - 14:04, 7 August 2024
  • Thumbnail for Brancasaurus
    more recently been recovered as a member, or close relative, of the Leptocleididae, a group containing many other freshwater plesiosaurs. The holotype...
    29 KB (3,040 words) - 16:59, 21 December 2023
  • Thumbnail for Elasmosauridae
    Aptian; Early Cretaceous) of the Isle of Wight and the evolution of Leptocleididae, a controversial clade". Journal of Systematic Palaeontology. 11 (2):...
    36 KB (3,558 words) - 05:33, 26 June 2024
  • Thumbnail for Franconiasaurus
    Polycotylidae Leptocleididae...
    5 KB (265 words) - 14:03, 23 March 2024
  • Thumbnail for Plesiosaurus
    Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae...
    22 KB (2,221 words) - 05:29, 14 August 2024
  • Thumbnail for Plesiosaur
    were present, shorter species with a long neck and a small head. The Leptocleididae radiated during the Early Cretaceous. These were rather small forms...
    137 KB (13,373 words) - 13:38, 17 June 2024
  • Thumbnail for Pliosaurus
    Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae...
    61 KB (7,019 words) - 23:33, 20 August 2024
  • Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae...
    36 KB (3,848 words) - 23:30, 20 August 2024
  • Thumbnail for Elasmosaurus
    Aptian; Early Cretaceous) of the Isle of Wight and the evolution of Leptocleididae, a controversial clade". Journal of Systematic Palaeontology. 11 (2):...
    113 KB (12,424 words) - 16:34, 17 July 2024
  • Thumbnail for Pliosauroidea
    Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae...
    15 KB (1,325 words) - 14:04, 26 May 2024
  • Thumbnail for Nothosaurus
    Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae...
    18 KB (1,418 words) - 17:42, 23 July 2024
  • Thumbnail for Cryptoclididae
    reclassified as other kinds of plesiosauroids. Kaiwhekea was reclassified to Leptocleididae, and Aristonectes was transferred to Elasmosauridae. Cladogram based...
    4 KB (277 words) - 16:44, 18 June 2024
  • Thumbnail for Pachypleurosauria
    Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae...
    7 KB (477 words) - 04:21, 4 January 2024
  • Thumbnail for Kronosaurus
    representatives. Some representatives of the Leptocleidia clade, which includes Leptocleididae and Polycotylidae, are known. Leptocleids include Leptocleidus, Umoonasaurus...
    84 KB (9,361 words) - 18:50, 20 August 2024
  • Thumbnail for Vectocleidus
    Aptian; Early Cretaceous) of the Isle of Wight and the evolution of Leptocleididae, a controversial clade". Journal of Systematic Palaeontology. 11 (2):...
    2 KB (103 words) - 18:33, 6 April 2023
  • Thumbnail for Dolichorhynchops
    Leptocleididae  Polycotylidae ...
    19 KB (1,898 words) - 22:37, 3 August 2024
  • Thumbnail for Pliosauridae
    Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae...
    6 KB (363 words) - 12:20, 3 July 2024
  • Thumbnail for Plesiosauroidea
    Leptocleididae Polycotylidae...
    21 KB (2,136 words) - 20:32, 9 August 2024
  • Thumbnail for Marambionectes
    Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae...
    7 KB (298 words) - 06:23, 21 May 2024
  • Thumbnail for Attenborosaurus
    Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae...
    7 KB (494 words) - 03:41, 3 July 2024
  • Aristonectes (O'Keefe and Street, 2009). In 2010, Kaiwhekea was transferred to Leptocleididae, but more recent analyses do not find the same result. The following...
    6 KB (475 words) - 16:02, 9 June 2024
  • Thumbnail for Nothosaur
    Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae...
    7 KB (594 words) - 03:44, 24 June 2024
  • Thumbnail for Unktaheela
    Vectocleidus Leptocleididae Polycotylidae...
    8 KB (615 words) - 22:35, 3 August 2024
  • Thumbnail for Martinectes
    Vectocleidus Leptocleididae Polycotylidae...
    7 KB (546 words) - 22:37, 3 August 2024
  • Thumbnail for Thalassophonea
    Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae...
    5 KB (247 words) - 05:45, 2 July 2024
  • Thumbnail for Kem Kem Group
    Plesiosaurs Genus Species Location Stratigraphic position Material Notes Images Leptocleididae cf. Leptocleidus indeterminate...
    48 KB (2,733 words) - 01:10, 11 August 2024
  • Thumbnail for Styxosaurus
    Hastanectes? Nichollssaura? Leptocleididae Brancasaurus Hastanectes? Leptocleidus Nichollssaura? Umoonasaurus? Vectocleidus Polycotylidae...
    16 KB (1,528 words) - 01:59, 24 May 2024