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Imrankhanhero zilefatmi
Taxonomy
Imrankhanhero zilefatmi was named by Malkani (2023). Its type specimen is partial right humerus (proximal and mid por- tion GSP-UM/Sangiali-1124, distal portion GSP/MSM-262-1), distal right femur GSP/MSM-232-1 and proximal right fibula GSP-UM/Sangiali-1117, a set of limb elements, and it is a 3D body fossil. Its type locality is Sangiali Kali Kakor, DL-1 (western), which is in a Maastrichtian fluvial mudstone in the Vitakri Formation of Pakistan. It is the type species of Imrankhanhero.
Synonymy list
| Year | Name and author |
|---|---|
| 2023 | Imrankhanhero zilefatmi Malkani p. 1098 fig. 10 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Imrankhanhero zilefatmi Malkani 2023
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. S. Malkani 2023 | Imrankhanhero zilefatmi medium sized sauropod shares with the Titanosauria on the basis of procoelous caudal centra which are found from this locality. It shares with Poripuchia because of sharing with Pakisauridae. It shares with Pakisauridae on the basis of slender femur (Figure 10) and slightly tall almost squarish and slender caudal. It has following autapomorphies. The humerus of Imrankhanhero zilefatmi is relatively slender, small sized and almost L-shaped. Its humerus has medially inset, sinusoidal and intermediate (between slender and robust) deltopectoral crest and posterior plain surface just below head, while Qaikshaheen masoomniazi has almost laterally set, sinusoidal and robust deltopectoral crest and posterior plain surface just below head, Ikqaumishan smqureshi has medially inset, slender and almost straight deltopectoral crest and posterior plain surface just below head, Gspsaurus pakistani has medially inset, almost straight, slender and a subcircular ridge peak at the base of deltopectoral crest and posterior plain surface just below the head, Pakisaurus balochistani has medially inset, robust and almost straight deltopectoral crest and posterior ridge with lateral and medial triceps, and Balochisaurus malkani has ventrally shifted head and posterior plain surface just below the head. Its distal humerus has no anteriorly expanded radial condyle like Isisaurus colberti while all other titanosaurs from Indo-Pakistan have anteriorly expanded radial condyle. Its distal femoral shaft transverse width is about twice of its anteroposterior width (Figure 10). It has slender femur, while Khanazeem saraikistani, Pakisaurus balochistani and Gspsaurus pakistani have more slender femora, Qaikshaheen masoomniazi has robust femora, Balochisaurus malkani and Marisaurus jeffi have more robust femora. A triangular cavity/hallow is found in the core of femoral distal shaft (Figure 10). Proximal tibia is extremely slender like Khanazeem saraikistani, while Gspsaurus pakistani has robust proximal tibia and Balochisaurus malkani and Qaikshaheen masoomniazi has more robust proximal tibia. Its distal tibia is sub-triangular, anteroposteriorly broad and host centrally situated and wide astragalar fossa (Figure 10) like Khanazeem saraikistani, while Gspsaurus pakistani, Nicksaurus razashahi and Balochisaurus malkani have transversely broad distal tibia with narrow astragalar fossa located in front of small process of distal tibia (Figure 14). Its proximal fibula is more large in anteroposterior width, while Pakisaurus balochistani fibula is large in anteroposterior width, Gspsaurus pakistani and Qaikshaheen masoomniazi fibulae are relatively small in anteroposterior width. |
Measurements
No measurements are available
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| Source: infrao = infraorder | |||||
| Reference: Marsh 1875 | |||||
Age range: Late/Upper Maastrichtian or 70.60000 to 66.00000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maastrichtian | India (Madhya Pradesh) | Titanosaurus indicus (26375) | |
| Late/Upper Maastrichtian | Pakistan (Balochistan) | Imrankhanhero zilefatmi (79427) Pakisaurus balochistani (type locality: 220149) |