Maroccosuchus

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Maroccosuchus
Temporal range:
Ma[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Archosauromorpha
Clade: Archosauriformes
Order: Crocodilia
Superfamily: Gavialoidea
Genus: Maroccosuchus
Jonet & Wouters, 1977
Type species
Maroccosuchus zennaroi
Jonet & Wouters, 1977

Maroccosuchus zennaroi is an

Early Eocene of Morocco, traditionally regarded as a member of the subfamily Tomistominae.[2][3]

Below is a cladogram based on morphological studies comparing skeletal features that shows Maroccosuchus as a member of Tomistominae, related to the false gharial:[4]

Crocodylidae

Crocodylinae

Tomistominae

Xaymacachampsa

Megadontosuchus

Kentisuchus

Maroccosuchus

Dollosuchoides

Tomistoma cairense

Maomingosuchus

Tomistoma schlegelii False gharial

Gavialosuchus

Tomistoma lusitanicum

Paratomistoma

Tomistoma coppensi

Based on morphological studies of

taxa, the tomistomines were long thought to be classified as crocodiles and not closely related to gavialoids.[5] However, recent molecular studies using DNA sequencing have consistently indicated that the false gharial (Tomistoma) (and by inference other related extinct forms in Tomistominae) actually belong to Gavialoidea (and Gavialidae).[6][7][8][9][10][11][12]

Below is a

last common ancestor to both the gharial and the false gharial:[11]

Gavialoidea
Gavialidae

Gavialis gangeticus Gharial

Gavialis bengawanicus

Gavialis browni

Gryposuchus colombianus

Ikanogavialis

Gryposuchus pachakamue

Piscogavialis

Harpacochampsa

Tomistoma lusitanicum

Tomistoma schlegelii False gharial

(crown group)

Tomistoma cairense

Dollosuchoides

Maroccosuchus

Paratomistoma

Kentisuchus

(
total group
)

References

  1. .
  2. ^ Jonet, S.; Wouters, G. (1977). "Maroccosuchus zennaroi, crocodilien eusuchien nouveau des phosphates du Maroc". Notes et Mémoires du Service Géologique du Maroc. 38: 177–202.
  3. ^ Brochu, Christopher A.; Gingerich, Philip D. (2000). "New tomistomine crocodylian from the Middle Eocene (Bartonian) of Wadi Hitan, Fayum Province, Egypt" (PDF). Contributions from the Museum of Paleontology. 30 (10): 251–268.
  4. ISSN 0031-0182
    .
  5. ^ Brochu, C.A.; Gingerich, P.D. (2000). "New tomistomine crocodylian from the Middle Eocene (Bartonian) of Wadi Hitan, Fayum Province, Egypt". University of Michigan Contributions from the Museum of Paleontology. 30 (10): 251–268.
  6. PMID 12775527
    .
  7. .
  8. .
  9. .
  10. .
  11. ^ .
  12. .