Lonchodraco machaerorhynchus

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Rodrigues T, Kellner A (2013) Taxonomic review of the Ornithocheirus complex (Pterosauria) from the Cretaceous of England. ZooKeys 308 : 1–112, doi. Versioned wiki page: 2013-06-12, version 35255, https://species-id.net/w/index.php?title=Lonchodraco_machaerorhynchus&oldid=35255 , contributors (alphabetical order): Pensoft Publishers.

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BibTeX:

@article{Rodrigues2013ZooKeys308,
author = {Rodrigues, Taissa AND Kellner, Alexander Wilhelm Armin},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {Taxonomic review of the Ornithocheirus complex (Pterosauria) from the Cretaceous of England},
year = {2013},
volume = {308},
issue = {},
pages = {1--112},
doi = {10.3897/zookeys.308.5559},
url = {http://www.pensoft.net/journals/zookeys/article/5559/abstract},
note = {Versioned wiki page: 2013-06-12, version 35255, https://species-id.net/w/index.php?title=Lonchodraco_machaerorhynchus&oldid=35255 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - Taxonomic review of the Ornithocheirus complex (Pterosauria) from the Cretaceous of England
A1 - Rodrigues T
A1 - Kellner A
Y1 - 2013
JF - ZooKeys
JA -
VL - 308
IS -
UR - http://dx.doi.org/10.3897/zookeys.308.5559
SP - 1
EP - 112
PB - Pensoft Publishers
M1 - Versioned wiki page: 2013-06-12, version 35255, https://species-id.net/w/index.php?title=Lonchodraco_machaerorhynchus&oldid=35255 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.308.5559

Wikipedia/ Citizendium:

<ref name="Rodrigues2013ZooKeys308">{{Citation
| author = Rodrigues T, Kellner A
| title = Taxonomic review of the Ornithocheirus complex (Pterosauria) from the Cretaceous of England
| journal = ZooKeys
| year = 2013
| volume = 308
| issue =
| pages = 1--112
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.308.5559
| url = http://www.pensoft.net/journals/zookeys/article/5559/abstract
| pmc =
| accessdate = 2019-06-20

}} Versioned wiki page: 2013-06-12, version 35255, https://species-id.net/w/index.php?title=Lonchodraco_machaerorhynchus&oldid=35255 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Pterosauria
Familia: Lonchodraconidae
Genus: Lonchodraco

Name

Lonchodraco machaerorhynchus (Seeley, 1870) comb. n.Wikispecies linkPensoft Profile

Holotype:

CAMSM B54855, partial mandibular symphysis (Fig. 5A–F).

Type locality

Cambridge, Cambridgeshire, England.

Type horizon

Cambridge Greensand (Cenomanian; fossils Albian in age).

Diagnosis

Lonchodraconid pterosaur with the following combination of characters that distinguishes it from other members of the clade (autapomorphies are marked with an asterisk): deep dentary crest*; ventral margin of the mandible posterior to the dentary crest ascending in lateral view*; ventral depression located posteriorly to the dentary crest*; wide mandibular groove*; approximately 4.5 alveoli per 3 cm of jaw margin.

Description

CAMSM B54855 consists of a fragment of the posterior portion of the mandibular symphysis. Seeley (1870)[2] described the mandible as narrow, with parallel alveolar margins, deep mandibular sulcus, spacing between alveoli equal to the size of their diameters, and with the lateral margins forming a sharp keel, which Unwin (2001)[4] interpreted as a dentary crest. Seeley (1870)[2] mentioned the presence of a suture with the angular bone, which would almost reach the tip of the mandible, as a unique character for this species in comparison to the pterosaurs from Germany. We here interpret this structure as the posterior margin of a dentary crest rather than a suture.
In addition to a deep mandibular groove, CAMSM B54855 shares with Lonchodraco giganteus small and well–spaced alveoli, without significant size variation. However, it differs from this species in having straight alveolar margins in dorsal view (Seeley 1870[2]), whereas the margins diverge in Lonchodraco giganteus. The mandibular crest of Lonchodraco machaerorhynchus is deep and its apex coincident with its terminus, with a ventral depression posterior to it. In Lonchodraco giganteus, the mandibular crest is short and blade–like, being more restricted to the length of the symphysis; the presence of a depression cannot be determined.

Taxon Treatment

  • Rodrigues, T; Kellner, A; 2013: Taxonomic review of the Ornithocheirus complex (Pterosauria) from the Cretaceous of England ZooKeys, 308: 1-112. doi

Other References

  1. Seeley H (1869) Index to the fossil remains of Aves, Ornithosauria, and Reptilia, from the Secondary System of Strata arranged in the Woodwardian Museum of the University of Cambridge. Deighton, Bell and Co., Cambridge, xxiii + 143 pp.
  2. 2.0 2.1 2.2 2.3 Seeley H (1870) The Ornithosauria: an elementary study of the bones of pterodactyls, made from fossil remains found in the Cambridge Upper Greensand, and arranged in the Woodwardian Museum of the University of Cambridge. Deighton, Bell, and Co., Cambridge, xii + 135 pp.
  3. Hooley R (1914) On the ornithosaurian genus Ornithocheirus, with a review of the specimens from the Cambridge Greensand in the Sedgwick Museum, Cambridge. Annals and Magazine of Natural History 78: 529-557. doi: 10.1080/00222931408693521
  4. 4.0 4.1 Unwin D (2001) An overview of the pterosaur assemblage from the Cambridge Greensand (Cretaceous) of Eastern England. Mitteilungen aus dem Museum für Naturkunde in Berlin, Geowissenschaftliche Reihe 4: 189-221. doi: 10.1002/mmng.20010040112

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